UNITED STATES DEPARTMENT OF THE INTERIOR 

Harold L. Ickes, Secretary

GEOLOGICAL SURVEY 

W. C. Mendenhall, Director / rf

Bulletin 878

ANALYSES OF ROCKS AND MINERALS

FROM THE

LABORATORY OF THE UNITED STATES 

GEOLOGICAL SURVEY

1914-36

TABULATED BY

ROGER C. WELLS

Chief Chemist

UNITED STATES

GOVERNMENT PRINTING OFFICE 

WASHINGTON : 1937

For sale by the Superintendent of Documents, Washington, D. C. ------ Price 15 cents

V

CONTENTS

\

Page

Introduction._____________________________________________________ 1

The elements and their relative abundance.__________________________ 3

Abbreviations used._______________________________________________ 5

Classification.___________________________________________________ 5

Analyses of igneous and crystalline rocks____-_________.._____________ 6

Alaska._____-_____-__________---_-_--___-____-_____-_________ 6

Central Alaska________________________________________ 6

Southeastern Alaska___________-_--________________________ 7

Arizona._________--____-_---_-------___-_--------_----_______ 8

Ajo district.-_--_.____---------______--_-_--__---_______ 8

Oatman district____________-___-_-________________________ 9

Miscellaneous rocks....-._...._-............_......_._.... 10

Arkansas.____________________________________________________ 11

Austria._____________________________________________________ 11

California.__,_______________--_-_----______-_-_-_-___________ 11

T ' Ivanpah quadrangle.____-_----__--_____----_--_--__.______ 11

Lassen Peak__________________ ___________________________ 12

Mount Whitney quadrangle________________________________ 12

Pala district____________-___________________._____________ 13

Miscellaneous rocks-_______----__-________-_-_____-_______ 13

1, Colorado _ _ ______--__-__---_____----_____-__-___-___________ 13

Bonanza district._________________________________________ 13

Breckenridge district____________--_-________-_____._______ 14

Cochetopa quadrangle.____________________________________ 14

Conejos quadrangle___-__-__---------------_------________ 15

Creede quadrangle._______________________________________ 16

T Del Norte quadrangle_________----__________--_--_________ 16

Leadville district__________________________________________ 17

Nederland district_--__-___---_------------_-----__________ 17

i Saguache quadrangle._____________________________________ 18

San Cristobal quadrangle._____--_-__-_____-__--_-_-_______ 18

+ San Juan region___________________________________________ 19

/ ' Spanish Peaks district.____________________________________ 19

t Summitville quadrangle________--_-_-__-____--_---_________ 20

Uncompahgre quadrangle....______________________________ 21

Miscellaneous rocks.______________________________________ 22

'* Connecticut- _________________________________________________ 24

Guilford quadrangle.-__---_--_------______-_--____-_______ 24

Miscellaneous rocks..________-_---____--_______-__________ 24

Dominican Republic and Virgin Islands. ______ ___________________ 24

Georgia. ____ _ ______________________________________________ 25

(< Hawaii. .____._ _____ __ _._-_._ _____.._____ 25

Idaho. _______________-_---_-__--________________ 26

Casto quadrangle.________________________________________ 26

Edwardsburg district._____________________________________ 27

,, Pend Oreille district-_-_------------___---__--_-_---_______ 27

Miscellaneous rocks.______________________________________ 28 i

in

V
IV CONTENTS

Analyses of igneous and crystalline rocks Continued. Page

Maine. _______________________________________________ 29

Maryland. _____________________________________________ 29

Massachusetts. __:.___________________________.________________ 29

Mississippi.__________________________________________________ 30

Montana._______-_-_-____--_-_-_-_--------_______________ 30

Nevada._______.__-________--__---___-_----_______-____.___ 30

Delamar mining district____________________________________ 30

Rochester district.________________________________________ 31

Yerington district.________________________________________ 31

Miscellaneous rocks.______________________________________ 31

New Jersey.______--._______-----_____-__-___________.____ 33

New Mexico___-___---__--_-_--_-----__-----__-_-___-_-_______ 33

Abiquiu quadrangle.______________________________________ 33

San Juan region...____________________________________ 33

Miscellaneous rocks._______--_--___-__-_--________________ 36

New York________________ _ _________________ 36

North Carolina_______________________________ 36

Oregon._____________________________________________________ 36

Baker quadrangle.________________________________________ 36

Bohemia district.__________________________________________ 37

Takilma region.__________________________________________ 37

Miscellaneous rocks.______________________________________ 38

Panama______ ________________------_-_--_----_--_-__-..__----- 39

Pennsylvania. ________________________________________________ 39

Utah________________________________________________________ 40

Fairfield quadrangle..____________--_-___-_-_-_-______-_--- 40

Gold Hill quadrangle.__.__--__--_-_-__--_-_-___-_--______. 40

San Rafael Swell_______.___________________ 41

Miscellaneous rocks.______________________________________ 41

Virginia._____________________________________________________ 41

Analyses of sandstones and cherts___---_----_--_---_--_-_-____------ 42

Arizona._____________________________________________________ 42

California._____________________----_--_-----_________-__----_ 42

Nevada____________________..___________ 43

New Mexico___-_________________--___________________________ 43

Oklahoma._____--________-___------____--__-__----_---.__---- 44

Oregon._________________-___-_________________________ __-__ 44

Utah__________________________________-_______________-_____ 45

Virginia.___--_-_______-______----___------_-____________^__ 46

West Virginia.________________________________________________ 46

Analyses of carbonate rocks__________-_______________________ -____ 46

Alabama.________________-___------____-_---______---___---__ 46

Alaska.______________________________________________________ 46

Arizona.________-____-__--____-_-_-__--____-_______-_____---- 48

Arkansas_ _ _________________________________________________ 48

Batesville district.________________________________________ 48

Australia_ ___-_-_____-__-___---_--___-----__-_--_-__________ 49

Bahamas_ __________________________________________________ 49

California.-__--___-__--_--___-_----_-____-_-_-_--__-___---___ 50

Ivanpah quadrangle_______------_______--_-____-__________ 50

Miscellaneous rocks.______________________________________ 50

Colorado_ _-_-______________----_---______-________-________ 51

Cuba...____________________________________ 52
CONTENTS V

Analyses of carbonate rocks Continued. Pago

District of Columbia._________________________________________ 52

Georgia. ___________________---____-_---------__-_--_-____-___ 52

Haiti. ________.___.__..______________.___.. 52

Idaho_____.-__.__-_.--_--_-____----_-_-.--______________ 52

Indiana.________-_____-____--_____----_-_--_-_-_------__-_--_ 53

Iowa.__-__-___-____-______------_--_---_------_----___-_____ 53

Kansas _______-____.________--__-_-----__---_--_---____-__-._ 53

Kentucky.___________________________________________________ 53

Maryland.___________________________________________________ 53

Massachusetts-_______________________________________________ 54

Montana_ ___--____________-_--___---____--____-____________ 54

Nevada.-______________-___________-_____------_----.__-_____ 54

New Mexico_________-_____---___--_-___-_-_-____-__________ 57

New York__________________.______.__________________________ 57

Ohio.___________.__-.___.._______----__.___ 58

Oklahoma... ______ _____.__._._.____.__...____________ 58

Oregon._---._----- __.___________-_-_--_--___-----_--_--_- 58

Panama__ __________________________________________________ 59

Pennsylvania. ________________________________________________ 59

South Dakota._______________________________________________ 60

Tennessee. ___________________________________________________ 60

Texas.____________________________________ 60

Utah._-________..___-____._-______-____________-_.-_.____.__ 61

Virginia_ ____-________-____-____---_-___--_____--_._________ 61

Washington __________________________________________________ 62

West Virginia______-_--___-____-_____-_______________ 62

Wyoming.___________________________________________________ 62

'' Analyses of slates and shales______-___--___-____-.____-____-_-___ 63

, Alabama._________-__-____-__-__-_---_--_---_-__----_-_-__-__ 63

fc California.___________-_-_-__----------__-_-----_-__-___--_.-_ 63

Colorado___________________________________. 63

r Idaho_______--.____________________________ 64

Ohio.. ---__----_-_---------------------------------------_ 64

*- Sweden _______-_______--________-----_-_---_.____-___________ 64

i Wyoming ________-__________-___---_--_-__--.---.----_-__---__ 64

Analyses of clays, soils, etc...-.-----_-__----___----_-_--._____--__._ 65

Alabama._____________-_____--__-______-_-_-.___--_____-_____ 65

,, Arkansas_ ____--_____-_____-______-_-___--_____-__-__---____ 65

California.____________-_l___--____________--____--________.__ 66

Colorado.___-__________-_-__-_-_____---_--_---__--_----_^____ 67

Florida--__--_------_-----__-------------------_----_-----_-. 67

- Iowa____---_---___-----__----___-___-_----_-_---_--_----__ . 67

Louisiana.____-____________________--_-__-----__--_____-_____ 67

Maine._----.___________-______---_-_-_--_-----_-----_-_- 67

Mississippi _______-___-_-______--___-_____----___-__-___-___:_ 68

_, Missouri_ ___________________________________________________ 68

\ Nevada..__________.________-______-__---_--_____-_--______-_. 69

Pennsylvania.________________________________________________ 69

South Dakota______--______.-____.--____--________ 69

Tennessee. ___________________________________________________ 70

Texas_____________-________-_____---_----------_________ 70

f Utah._______________________________________________________ 70

Virginia_ ____-______-_-___---_-___--____-_-----_---_____-__- 70

T
VI CONTENTS

Analyses of clays, soils, etc. Continued. Page

Washington ____________________________________________i_____ 71

Wyoming ____________________________________________________ 71

Miscellaneous localities._______________________________________ 71

Analyses of ores and gangue material._______________________________ 72

Alabama.____________________________________________________ 72

California-_-_-_----___--------_---_-_-______-_------___ 73

Colorado____________________________________ 73

Cuba______-_________.--____-_____-___________--________---.- 74

Florida. _.___________________________________ 74

Haiti___-__--___----_---_----__--__-_-__---_--_-___---_-_-_ 74

Idaho -___--___-_____-___-___--___-_____-____-___--___--_-_ 74

Mississippi. _ _-____-__-_-_---_--_-___-__________-_-__-___--___ 75

Nevada._____________________________________________________ 75

New Mexico________________________________________________ 76

New York____._______________________________________________ 76

North Carolina and South Carolina___________________________ 76

South Dakota__________________________________________ 77

Tennessee. ___-___---___----________-__________--___-________- 77

Texas_____________________________________ 77

Utah._______________________________________________________ 80

Virginia_ ___________________________________________________ 81

Washington __________________________________________________ 81

Wyoming.___________________________________________________ 82

Analyses of minerals___--_______________-_____-______-_-_-_---_-- 82

Native elements______________________________________________ 82

Arsenic._________________________________________________ 82

Gold.-_--_______-_____-___--____-__-_-____-___-___--_-_ 82

Lead. __-_----__--.___________________.-_-.____ 83

Platinum___.__.__________________________ 83

Sulphur-__-_-_----__---___--____-______---__-._-__-___ 83

Sulphides, arsenides, and antimonides (including sulpho-salts) __ __ 84

Alaskaite__ _____________________________________________ 84

Arsenopyrite. _____________ _ ___ 84

Bornite __________________________________________________ 84

Bravoite _________________________________________________ 84

Chalmersite____.____________--___-----.-_-_-_-_-- _ 84

Enargite......___________________________ 84

Galena __ _______________________________________________ 84

Gersdorffite _____________________ __________________________ 85

Glaucodot______________________________________________ 85

Maucherite__ ___________________________________________ 85

Pyrite._____________________________________________ 85

Pyrrhotite..._-__--_-----_----__---_---__------_-_-_.__. 86

Siegenite. ________________________________________________ 86

' Skutterudite____________________________________________ 86

Smaltite..________________________________ 86

Sphalerite._________^_____________________________________ 86

Tennantite ----_______---_______-____-_-___--____-____-___ 86

Tetrahedrite_____.___________________________ 87

Tungstenite.--_--_-__________________________________ 87

Tellurides----------------------._---__---__----__-.________ 87

Tetradymite.___.______________.___________ 87
CONTENTS VII

Analyses of minerals Continued. Page

Chlorides and fluorides_______________________________________ 87

Carnallite.______________._____.__________ 87

Creedite.-_______________________________ 87

Gearksutite ______________________________________________ 88

Halite._______________--___-____-_--___---_____________._ 88

Kainite_______________________________ 88

Lorettoite________________________________ 88

Sylvinite_________________________________________ 88

Sylvite________________-_________-_-__--_-___.___________. 89

Oxides and hydroxides_----__--_-_------_-_-------_--____---_-_ 89

Braunite. ________________________________________________ 89

Cassiterite. ________________________________________ 89

Chromite._______________________________________________ 89

Corvusite._______________________________________________ 90

________-____________--___-----________--____ 90

-.__________________________________________. 90

' Hausmannite.-__-.___.___-_____-_.--___._______. 91

V Hematite____________-_______-___----_____-____--.____-__ 91

Hercynite. _ ______________________________________________ 91

Hetaerolite. ______________________________________________ 91

._, Leucoxene_________-____________-___-----_________--___ 91

Limonite______-__-_____-_______--___-__--________-__-__ 92

± Magnetite___________.__________________________ 92

Psilomelane_______________________________.______________ 92

Pyrolusite._____________________________1___ 92

Spinel_________________________________________________ 93

'* Tenorite_________________-_------__--------._-_--______ 93

Vanoxite_-._____________-___-_______---____-_ __ 93

i Wad ________---____-._____-__-_____-__-----__--__- 93

v Carbonates.. _ ________________________________________________ 93

Ankerite.__________________________--___-____-_-- ___ 93

Calcite___.__________________.__________ 94

Cerusite_______________________________________________ 94

Hydromagnesite________________-_____--_---_----__------- 95

Hydrozincite _____________________________________________ 95

Magnesite____________________------_---_.--- ___ 95

Rhodochrosite __________-____--___----__-_--__-_---------- 95

*" Siderite__________________________--__--__--___-_----_--_- 95

Strontianite ______________________________________________ 96

Silicates __ _________________________________________________ 96

Albite__ _________________________________ 96

Allanite-- 96

Allophane-------__----_----_----------------------------- 96

Analcite ________l_______-_-_-------_--------------------- 97

Anauxite__ _ ________________-____-_--_------__-_-----_---- 97

Antigorite_ _____________-_____-_-----------_------------ 97

^ Bavenite_____--____-___--__---------------_-------------- 98

Beidellite__________..__ 98

Bementite_ _________________________-__---____-___------ 98

Beryl 99

Biotite.. . .. 99

Bisbeeite_________________ - - 99

1 Cerite.. ---------------- 99
VIII CONTENTS

Analyses of minerals Continued.

Silicates Continued. Page

Chrysocolla __________________---_-___-____-_______-_--_-- 99

Clinohypersthene _________________________________________ 100

Clinoptilolite ____________________________________________ 100

Clinozoisite___ __________________________________________ 100

Dickite.________________________________ 100

Feldspar_________________________________ 100

Garnet___________________-_--__-------___________--_._ 100

Gillespite. ____--_-__--___----------------------___-__---_ 102

Glauconite. ______________-_-----__-----.-____-_-___--_-___ 102

Griffithite________________-__---_-------_-_-___-_-_--_-___ 102

Grunerite_ _______________________________________________ 103

Halloysite-___-_---____-----------------_-------_-------__ 103

Hedenbergite.____________________________________________ 104

Hisingerite _______________________________________________ 104

Hornblende. ___-____________-----_------___-__-___--_-__. 104

Ilvaite.---_-----_-_-_-__---------------------__----__-_-_ 104

Inesite___ ________________________________________________ 104

Jeffersonite _____________________________________________ 105

Johannsenite__ _ _ _______________________________________ 105

Kaolinite__ _____________________________________________ 105

Lepidolite_ _______________________________________________ 105

Leuchtenbergite_-_. _ ______________________________________ 106

Leverrierite. _____________________________________________ 106

Microcline.____-__________--_---_----__-_--_--_________._ 106

Monticellite. _____________________________________________ 106

Montmorillonite. _________________________________________ 107

Mordenite___-_-________--_----_--_-_---__-____________ 108

Muscovite__ _ __________________________________________ 108

Nontronite.______________________________________________ 108

Penninite.-_______________-_--_---_-_-___-__-_______-_-__ 109

Phlogopite____________________-_._____.___ 109

Pollucite___________________________________ 109

Potash clay____-_________---___--______-_-____-_-__-_-__- 109

Rectorite__ _____________________________________________ 110

Roscoelite. _______________________________________________ 110

Saponite __________________________________________________ 110

Schrotterite ______________________________________________ 110

Searlesite.____-__________-------_-___---_-___-____--_-.__ Ill

Sepiolite.________________________________________________ 111

Serendibite_-_-__________.-__--------__---_________-______ 111

Sericite._________________________________________________ 111

Serpentine.______________________________________________ 112

Shattuckite________.-_-_.-__________.._____ 112

Spadaite__________________________'___________________ 112

Talc___----_----_-________--------------_-__----__--___._ 112

Topaz._____,___________________________ 113

Tourmaline__________.____------_--____-____________.__ 113

Uranophane.______________-__-_-_-___-____-____.__--_-___ 113

Zinnwaldite_ _____________________________________________ 113

Titanates___________________________________ 113

Brannerite_ _.______________-_--_---____-______.___---__-_ 113
CONTENTS IX

Analyses of minerals Continued. Page

Columbates, tantalates_____-____-____-_____-___-__----_--_-_-- 113

Columbite._.__.________.__._..._.-_.._..___. 113

Microlite__ _-_____________-___-___-_-____-------__-__--_ 114

Polycrase _______----_______________________-----______-__ 114

Samarskite.___...._-__--___---______-__-_-__----------_-- 114

Borates._ ________-______--_____-____----_--___----------___-- 115

Ammonioborite _..__-_______-___-____-____-_____._-_-.-___ 115

Hydroboracite._____._-________._.._.___-_____---______._. 115

Kernite. _________________________________________________ 115

Ludwigite._______________________________________________ 115

Probertite_ ___-___________--___--_---_._.--__------_---- 115

Tincalconite, _____.___-___-__-_-______-____---_-_----____- 116

Ulexite._-..--.-------_--.--------..----.--.----------.-- 116

Nitrates. ________.___._______..____._._-.__._ 116

Niter____________._________-__________________----_____-_ 116

Soda niter__---..-----_.-__.-......___......_.._...._... 116

Phosphates and arsenates________-_-----__-----__-___------__-_ 116

Aluminum phosphate_________-__-_-____________-_-----____ 116

Arseniosiderite__._____.__._._.._.__._...._..._._.__._._. 117

Autunite. __________.________-________-___._-__-------_--- 117

Crandallite_-.-....__-_._._.._..._-..__-.._.............._ 117

Ferrous phosphate._______________________________________ 117

Metatorbernite._____-__-____-________-_-__---.__--_.__.__ 117

Phosphorite __-_-____--______-________-____--__--_-____--- 117

Triplite.___-___________-._.______________ 118

Variscite._________________________^___________________._. 118

Vanadates__________________________________________________ 118

Fernandinite_ _________.._.__._.._____.____.__._______.___ 118

Hewettite_____.___________.____-...___..... 118

Melanovanadite__ _.__-_____-__.__._.________________._. 119

Mottramite. ___-____-_____.._-__._.._____.__---_______.__ 119

Pascoite._-_-----_----_____-_-__-___----______---_.____-_ 119

Rauvite_ -_--__----_____-_-__-__-________-___--__-___.-- 119

Sincosite._----___--_-_-__-____-____________-____-________ 119

Uvanite__-_-_____--_-________.___..._____-..----__....- 120

Arsenates._____--_--__--_-__-___-___._.______._-__-_-__.___-_ 120

Arsenobismite.___________________________________________ 120

Sulphates.__-----_-___---------_-_--_____-__-_-___----_-__--- 120

Alunogen ________________________________________________ 120

Anhydrite__----_------___-__-_-_____________--_---_._-_ 120

Apthitalite.______________________________________________ 120

Argentojarosite.__________________________________________ 121

Barite.__________________________________________________ 121

Celestite_____________________________________ 121

Gypsum.________________________________________________ 122

Halotrichite.________________.._.__._.____________________ 122

Jarosite._________________________________________________ 122

Kornelite._______________________________________________ 123

Langbeinite._____________________________________________ 123

Leonite __________________________________________________ 123

Melanterite. ____----_-_______-____________--__-----____._ 123
X CONTENTS

Analyses of minerals Continued.

Sulphates Continued. Page

Minasragrite__ _ ____________________________________________ 123

Mirabilite_________________-__-_---_--__-_--__--___--_-___ 123

Plumbojarosite- __________________________________________ 124

Polyhalite.____..__.____._______..._._._.__._____ 124

Saline crust______________________________________________ 124

Sulphohalite____________________________________________ 125

Szomolnokite___-___-__-______-_____--__-__--__-_--______- 125

Thenardite_--_-__---__--__--_____-_______________________ 125

Molybdates, tungstates, and uranates______-___---_--___-_-____ 125

Cuprotungstite.___________________________________________ 125

Gummite. ___________________________________ 125

-_-__-_-----_-_----------------_-_------__- 126

--___-_----------------__-_---_-___-------- 126

______________-______________-_________.___ 126

Uraninite________________________________________________ 126

Zippeite......-__--_._____________.___.________ 126

______________________.__________________________________ 127
ANALYSES OF EOCKS AND MINERALS FROM THE

LABORATORY OF THE UNITED STATES

GEOLOGICAL SURVEY, 1914-36

Tabulated by ROGER C. WELLS

INTRODUCTION

This bulletin is a supplement to Bulletin 591. Although that bulletin included all the material in several earlier publications, thus being 

complete from 1880 to 1914, it was already so large that an attempt 

to incorporate it with newer material appeared unwise. Anyone wishing to make an exhaustive search for analyses will therefore have to 

consult both bulletins. Although many of the analyses here given 

have already been published and others are still in manuscript form, 

a considerable number are not on record elsewhere. Moreover, as the 

figures that have been published are widely scattered in different 

scientific journals and Government publications, it is impossible to 

find them without a great expenditure of time. Here the rock analyses are tabulated by locality and the minerals by name, and record 

numbers are given so that even the projects involved can be located.

The present United States Geological Survey was organized in 1879. 

In 1880, in connection with the Colorado work, a chemical laboratory 

was established at Denver in charge of W. F. Hillebrand, with whom 

were associated Antony Guyard and, later, L. G. Eakins. In 1882 

W. H. Melville was placed in charge of a second laboratory at San 

Francisco, and in the autumn of 1883 a central laboratory was started 

in Washington, with F. W. Clarke as chief chemist. In 1885 Dr. 

Hillebrand was transferred to Washington, followed by Mr. Eakins in 

1888, and the Denver laboratory was discontinued. In the spring of 

1890 Dr. Melville also was transferred to Washington, and since then 

the geochemical work of the Survey has been concentrated at headquarters. The laboratory was in charge of George Steiger from 1917 

until my appointment in 1930.

The special laboratories of the water-resources and technologic 

branches of the Geological Survey are not included in this statement, 

and their work is not represented in this bulletin, nor are the large

1
ANALYSES OF KOCKS AND MINERALS, 1914-36

number of determinations of potash in drill cores and cuttings made 

in connection with the Government's search for potash, which constituted in effect a special line of investigation for many years, especially 

from 1926 to 1931. Determinations of phosphate, assays for gold and 

silver, tests of clays, and similar routine tests are also omitted.

Analyses of rocks and minerals made in the laboratory at Washington up to January 1, 1914, are tabulated in Bulletin 591. Water 

analyses are given in many water-supply papers, indexed in WaterSupply Papers 560-C and 659-C. Since Bulletin 591 was published 

1,533 more rocks and minerals have been analyzed, and considerable 

research work on mineralogic and geochemical problems has been 

done. In this work the following chemists have been engaged: G. R. 

Backus, R. K. Bailey, G. V. Brown, A. A. Chambers, E. T. Erickson, 

J. G. Fan-child, J. J. Fahey, E. P. Henderson, W. B. Hicks, R. M. 

Kamm, Charles Milton, Chase Palmer, L. T. Richardson, B. Salkover, 

W. T. Schaller, George Steiger, R. E. Stevens, R. C. Wells, and W. C. 

Wheeler. At present (Jan. 1, 1936) nine of these chemists are 

employed. Other members of the Survey have been occupied more 

or less with chemical questions, but the men named in this list were 

connected directly with the laboratory.

It may be interesting to compare the number of analyses made in 

the Survey laboratory since 1914 with those previously made, as 

follows:

Total... ............... ......-... ...-... . ... .. -

1880-1914

1,407

79

315

65

147

62

2,789

1914-36

444

64

215

24

115

156

None

515

1,533

This makes a total of 4,322 quantitative analyses made since the 

organization of the laboratory, not including a vast number of partial 

routine determinations and numerous analyses made in connection 

with research problems and the development of methods.

The object here is mainly to put on record the additional analyses 

made since 1914. Other publications, chiefly by Clarke and Washington, deal fully with the classification of rocks, the average composition of different kinds of rocks and of the earth's crust, and the 

distribution and abundance of the elements. 1 A recalculation of

i See U. S. Geol. Survey Prof. Papers 14,18, 28,' 

422, 491, 591, 616, 695, 700, and 770.

9,127, and 132-D; Bulls. 148,168, 176, 223, 305, 330, 419,
ELEMENTS AND THEIR RELATIVE ABUNDANCE O

these figures to include later analyses would require much labor and 

probably introduce but few significant changes. Several chemists in 

this and other countries, however, have recently studied in more 

detail the distribution of certain ore-forming and rare elements.

THE ELEMENTS AND THEIR RELATIVE ABUNDANCE

Spectroscopic studies have shown a wide distribution of tin and 

germanium, previously unsuspected. Hafnium has been found in 

zirconium minerals, and columbium and tantalum in titanium minerals. Fluorine and selenium have been found in many surface waters, 

and many minor constituents have been determined in certain ores 

and rare minerals. The determination of such minor constituents has 

generally been accomplished by physical methods rather than by 

chemical separations. It results from the very meager knowledge 

of the proportion of rare minerals in the earth's crust that estimates of 

the distribution of the elements by different investigators differ 

widely, sometimes by several decimal places. Contributions to the 

knowledge of the subject have been made especially by Goldschmidt,2 

the Noddacks,3 Schneiderhohn,4 and Fersman.6 Fersman gives an 

excellent bibliography of the subject. He has also proposed the term 

"clarke" to designate a unit for indicating the relative abundance of 

an element either by weight or by number of atoms in any particular 

kind of rock or in the earth's crust, in honor of F. W. Clarke, who did 

so much for geochemical statistics. As Fersman's study of 1932 

assembles figures for the abundance of all the elements based on all 

preceding work, it seems advisable to give his results, which are shown 

in the sixth and seventh columns of the following table. The sixth column gives percentages by weight, the seventh column percentages by 

atoms for the relative abundance of each element in the 10-mile crust of 

the earth, based on the estimates of Clarke, Washington, Goldschmidt, 

Vogt, Niggli, Noddack, Vernadski, Hevesy, Paneth, and others.

The table also gives the atomic number of each element, the latest 

figure for its atomic weight, and the number of its isotopes, if this has 

been determined. Schneiderhohn's figures for the relative abundance 

of certain elements (1934) differ considerably from those of Fersman, 

but, as previously remarked, such differences seem unavoidable in 

the present very scanty knowledge of the subject. (

J Qoldschmidt, V. M., Qeochemische Verteilungsgesetze und kosmiche Hauflgkeit der Elemente: Die 

Naturwissenschaften, Band 18, pp. 999-1013,1930.

8 Noddack, Ida and Walter, Die Haufigkeit der chemischen Elemente: Die Naturwissenschaften, Band 

18, p. 757, 1930.

4 Schneiderhohn, H., Die Ausnutzungsmoglichkeiten der deutschen Erzlagerstfttten: Metallwirtschaft, 

Band 13, pp. 151-157,1934.

8 Fersman, A. E., Geochemistry, Leningrad, 1933.
ANALYSES OF ROCKS AND MINERALS, 1914-36 

The elements and their relative abundance

Element

Cobalt......... _ .....-....--..--.

Gold..- ...... -------------

Neon _______ . _______ .

Nickel. .--

Radon.. ______________

Silicon. _________ . ____

Terbium.... ...... .-..-.----..---

Symbol

Ac

Ab 

Al 

Sb 

A

A3

Ba 

Be 

Bi 

B 

Br 

Cd 

Ca 

C 

Ce 

Cs 

Cl 

Cr 

Co 

Cb 

Cu 

Dy 

Er 

Eu 

F 

Gd 

Ga 

Ge 

Au 

Hf 

He 

Ho 

H 

11 

In 

I 

Ir 

Fe 

Kr 

La 

Pb 

Li 

Lu 

Mg 

Mn 

Ma

Hg 

Mo 

Nd 

Ne 

Ni 

N 

Os 

0 

Pd 

P 

Pt 

Po 

K 

Pa 

Pr 

Ra 

Rn 

Re 

Rh 

Rb 

Ru 

Sm 

Sc 

Se 

Si 

Ag 

Na 

Sr 

S 

Ta 

Te 

Tb

Atomic 

number

89 

85 

13 

51 

18 

33 

56 

4 

83 

5 

35 

48 

20 

6 

58 

55 

17 

24 

27 

41 

29 

66 

68 

63 

9 

64 

31 

32 

79 

72 

2 

67 

1 

61 

49 

53 

77 

26 

36 

57 

82 

3 

71 

12 

25 

43 

80 

42 

60 

10 

28 

7 

76 

8 

46 

15 

78 

84 

19 

91 

59 

88 

86 

75 

45 

37 

44 

62 

21 

34 

14 

47 

11 

38 

16 

73 

52 

65

Atomic 

weight

227

26.97 

121. 76 

39. 944 

74.91 

137. 36 

9.02 

209. 00 

10.82 

79. 916 

112. 41 

40.08 

12.00 

140. 13 

132.91 

35. 457 

52.01 

58.94 

92.91 

63.57 

162. 46 

167. 64 

152.0 

19.00 

157.3 

69.72 

72.60 

197.2 

178.6 

4.002 

163.5 

1. 0078

114. 76 

126. 92 

193.1 

55.84 

83.7 

138. 92 

207. 22 

6.940 

175.0 

24.32 

54.93 

96 

200. 61 

96.0 

144. 27 

20. 183 

58.69 

14. 008 

191.5 

16. 0000 

106.7 

31.02 

195. 23 

210 

39. 096 

231 

140. 92 

226. 05 

222 

186. 31 

102. 91 

85.44 

101.7 

150. 43 

45.10 

78.96 

28. 06 

107. 880 

22. 997 

87.63 

32.06 

180. 88 

127. 61 

159.2

Number 

of 

isotopes

l 

2 

2 

1 

4 

3 

14 

2 

2 

6 

3 

3 

2 

1 

3 

4 

1

2

2

1

2 

8

2

3

1 

1

2 

6 

1 

16 

2

3 

1

9 

7 

4 

4 

3 

2 

6 

3

1

5

1 

4 

3 

2

2

7

1 

8 

3 

2 

4 

3 

5

8

Abundance

Percent by 

weight

7.45 

5X10-5 

4X10-' 

5X10-' 

0.05 

0.003 

1X10-5 

0.01 

0.001 

5X10-' 

3.25 

0.35 

2.9X10-3 

5X10-' 

0.20 

0.03 

0.002 

3.2X10-5 

0.01 

7. 5X10-' 

6.5X10-' 

2X10-5 

0.08 

7. 5X10-' 

1X10-3 ixio-'

5X10-' 

4X10-' 

IXIO-6

ixio-'

1.00

1X10-5 ixio-'

IXIO-6 

4.20 

2X10-8 

6. 5X10-' 

1.6X10-3 

0.005 1.75X10-' 

2.35 

0.10 ixio-7 ixio-'

1X10-3 

1.75X10-3 

5XHH 

0.02 

0.04 5X10-6 

49.13 

8X10-8 

0.12 

5X10-6 

5X10-6 

2.35 

7X10-" 

4.5X10-' 

3X10-'° 

1.2X10-15 ixio-'

IX lO-6 

0.008 

5X10-6 

7X10-* 

6X10-' 

8X10-5 

26.00 

1X10-5 

2.40 

0.035 

0.10 2.4X10-5 

1X10-6

IXKM

Percent by 

atoms

4.80 7XlO-« 

1. 7X10-' ixio-*

6X10-3 

6X10-3 

8X10-' 

0.015 

2X10-' 

8 X 10-* 

1.41 

0.51 

4X10-' 

7X10-5 

0.10 

9X10-3 

9X10-' 

6X10-8 

3X10-3 

8X10-5 

7X10-5 

3X10- 

0.07 8X10-5 

2.5X10-' 

2. 5X10-5 

4X10-' 

4X10-5 

4X10-6 

1X10-5 

17.25

1.5X10-6 

1. 5X10-5 ixio-7

1.31 

4X10-8 

8X10-5 ixio-'

0.012 

1.7X10-5 

1.72 

0.03 

1.5X10-3

7XlO-«

2X10-' 

2X10-' 

4X10-7 

6X10-3 

0.05 5X10-7 

53.30 

1. 5X8-6 

0.07 

4X10-7 

4X10-' 

1.05 5X10-' 2 

6X10-5 

2.0X10-" ixio-"

1X10-8 

1. 5X10-7 

2X10-3

ixio-«

8X10-5 

2. 5X10-' 

1. 5X10-5 

16.10 

1.5X10-6 

1.82 

7X10-' 

0.05 

2.3X10-6 

1. 5X10-' 

1X10-5
CLASSIFICATION

The elements and their relative abundance Continued

Element

Thallium... ........ _ ............

Symbol

Tl 

Th 

Tm 

Sn 

Ti 

W 

U 

V 

Vi 

Xe 

Yb 

Y 

Zn 

Zr

Atomic 

number

81 

90 

69 

50 

22 

74 

92 

23 

87 

54 

70 

39 

30 

40

Atomic 

weight

204. 39 

232. 12 

169.4 

118. 70 

47.90 

184.0 

238. 14 

50.95

131.3 

173. 04 

88.92 

65.38 

91.22

Number 

of 

isotopes

8 

8

11 

2 

4 

8 

1

9

3

7 

4

Abundance

Percent by 

weight

IXlO-s 

2X10-3

ix lo-4

6X10-* 

0.61 9X10-< 

9X10-< 

0.02

3X10-9 

8X10-4 

0.005 

0.02 

0.025

Percent by 

atoms

8X10-' ixio-<

1X10-5 

8X10-' 

0.22 9X10-" 

4X10-' 

7X10-3

4X10-"> 

8XHH 1X10-3 

5X10-3 

5X10-3

ABBREVIATIONS USED

Of the abbreviations used for bibliographic reference only five need 

explanation, and they refer to the official publications of the. Survey 

"Ann." for Annual Report, "Mon." for Monograph, "Bull." for Bulletin, "Prof. Paper" for Professional Paper, and "Folio" for Folio of the 

Geologic Atlas. The others relate to well-known journals and are 

familiar to all geologists. In the tables of analyses the symbols 

H20 and H20+ indicate, respectively, the water lost at or near 

105° and that expelled at higher temperatures.

For the information of readers in foreign countries the abbreviations used for names of States of the United States are explained 

below:

Ala., Alabama. 

Ariz., Arizona. 

Ark., Arkansas. 

Calif., California. 

Colo., Colorado. 

Conn., Connecticut. 

Del., Delaware. 

D. C., District of Columbia.

Fla., Florida. 

Ga., Georgia. 

111., Illinois. 

Ind., Indiana. 

Kans., Kansas. 

Ky., Kentucky.

La., Louisiana. 

Md., Maryland. 

Mass., Massachusetts. 

Mich., Michigan. 

Minn., Minnesota. 

Miss., Mississippi. 

Mo., Missouri. 

Mont., Montana. 

Nebr., Nebraska. 

Nev., Nevada. 

N. H., New Hampshire. 

N. J., New Jersey. 

N. Mex., New Mexico. 

N. Y.,. New York. 

N. C., North Carolina.

CLASSIFICATION

N. Dak., North Dakota. 

Okla., Oklahoma. 

Oreg., Oregon. 

Pa., Pennsylvania. 

R. I., Rhode Island. 

S. C., South Carolina. 

S. Dak., South Dakota. 

Tenn., Tennessee. 

Tex., Texas. 

Vt., Vermont. 

Va., Virginia. 

Wash., Washington. 

W. Va., West Virginia. 

Wis., Wisconsin. 

Wyo., Wyoming.

The classifications used in this bulletin are essentially similar to 

those used by F. W. Clarke in Bulletin 591. However, I am indebted 

to T. W. Stanton, formerly chief geologist, for suggesting the addition 

of the class "Ores and gangue material" for substances that fall
6 ANALYSES OF ROCKS AND MINERALS, 1914-36

better under that head than under any of the others. I am also 

indebted to many other members of the Survey for suggestions and 

assistance in naming the specimens analyzed, particularly to C. S. Ross 

in connection with the igneous rocks and clay minerals and for 

critically reading the whole manuscript, and to W. T. Schaller for 

mineralogic criticism. Opinions will naturally differ somewhat as to 

the exact classification of many of the substances whose analyses are 

given in the following pages, depending on the purpose for which 

the analyses were made or the viewpoint of the reader. The arrangement has been adopted for convenience; consequently, for example, a 

substance like vanoxite is listed as an oxide rather than a vanadate, 

and the garnets are all listed under the group name., Undetermined 

or impure clays will be found under the heading "Clays", whereas 

well-identified species will be found under "Minerals." Samples 

representing material in the mass are classified mainly as rocks, pure 

single specimens as minerals, and materials containing common 

metals of commercial interest generally as ores.

ANALYSES OF IGNEOUS AND CRYSTALLINE ROCKS

ALASKA

CENTRAL ALASKA

Samples of granodiorite rocks collected by J. B. Mertie, Jr. Analysis A by 

Charles Milton, B-F by J. G. Fairchild, record D-117.

A. Composite sample of four specimens from Roughtop (Moose) Mountain, 

14 miles N. 20° W. from Hot Springs.

B. Composite sample of four specimens from Elephant Mountain, 26 miles 

N. 41° E. from Hot Springs.

C. From Wolverine Mountain, 15 miles S. 35° E. from Rampart.

D. From mountain 17 miles S. 41° E. from Rampart.

E. Specimen from Sawtooth (Lynx) Mountain, 21 miles S. 68° E. from 

Rampart.

F. Composite sample of five specimens, Hot Springs Dome, 3 miles northwest 

of Hot Springs.

SiOz .... .

A\2 03.. .. ................................

FteOs.. ...... ............................

FeO........ ..............................

MgO....... ..............................

CaO. ........... ......................

Na2 0.. ..................................

KjO .....

HjO- . . 

H2 0+ ...........................

TiOj. ..... ...... -.-.. .

COz ...... ... ............ ..... ..

PsOj...... ........... ........... .........

MnO.. ............ _.. ....

Total .................. .........

A

54.20

18.43

.55

6.38

3.08

7.20

2.64

5.31

.05

.28

.81

.23

.60

.12

99.88

B

56.89

14.59

.45

6.13

4.23

6.10

2.10

6.32

.14

.74

1.00

.55

.40

.11

99.75

C

67.44

15.45

.65

2.68

.88

2.38

3.26

5.97

.06

.51

.41

.32

.16

.03

100.20

D

64.52

14.90

.42

3.72

1.85

3.52

2.62

5.98

.09

.76

.45

.71

.20

.09

99.83

E

16.45

.76

8.29

3.28

5.65

2.02

6.38

.20

1.15

1.40

.95

.55

.08

100.27

F

70 no

13.46

.94

1.26

.53

1.11

2.42

5.18

.20

.36

.35

.15

.10

.04

100.02

Four granitic rocks collected from central Alaska by Mertie and analyzed by 

E. T. Erickson, record D-415.

G. Summit of ridge at head of Monument and Flint Creeks, in the Ruby 

district, 7 miles S. 20° E. of Long.

H. Southeast side of Mammoth Creek, opposite mouth of Miller Creek, 38 

miles S. 38° W. of Circle.
IGNEOUS AND CRYSTALLINE ROCKS

I. Head of Hidden Creek, in the Nixon Fork district, 32 miles N. 57° E. of 

McGrath.

J. Composite sample from head of Flat Creek, in the Iditarod district, ZYa 

miles due south of Flat.

SiOa . 

AljOs-- ------

FeO. ...........

M?0. . .........

CaO- .......

NntO. ..........

K^O. ...........

G

74. 02

19 09

.92

2.72

.69

1.46 3 22

4.28

H

75.98

11.70

.39

2.24

.30

.58 2 73

5.46

I

64.84

15.20

.73

4.18

2.02

3.04 4 03

155

J

57.16

16.88

.26

5.36

4.78

4.08

4.67

5.32

HaO-.. 

mo+. .........

TiOa -----

COs.... ...

PjOs 

MnO. -...- .

G

0.09

.28

.26

.04

.05

100. 05

H

0.05

49

.22

100. 07

I

0.04

.41

.30

.48

.06

99.88

J

0 04

AO

.30

.11

.08

99.73

SOUTHEASTERN ALASKA

Rocks collected by A. F. Buddington. Analyses by J. G. Fairchild, record 

C-858. Described by Buddington and Chapin in Bull. 800, 1929. 

A. Quartz monzonite, average of 6 samples from the Hyder district. 

B. Granodiorite, average of 6 samples from the Hyder district.

C. Quartz diorite, average of 14 samples from the western border of the Coast 

Range batholith. 

D. Diorite, Etolin Island.

SiOa 

AlaOs 

FeaOa 

FeO-. 

MgO... .....

CaO 

NnaO 

A

70.86

14.96

1.06

1.43

.41

2

OQ

3.90

B

64.87

16.26

1.51

2.89

1.72

4 79

3.82

C

59. 55

16.18

1 94

5.61

2.d6

3.40

D

50.24

17.86

2.00

6.56

5.47

Ifl KQ

3.51

KzO- ......

H2 0-.. ........

HtO+. .........

TiOu. ....... .

PaO» 

A

4.60

.40

.34

.11

100. 30

B

3.30

.28

.70

.19

100. 26

C

2 no

.04

.82

96

.26

100. 50

D

.03

1.39

.24

100. 61

Eocene lavas from southeastern Alaska, collected by A. F. Buddington and 

described in Am. Jour. Sci., 5th ser., vol. 23, pp. 490-496, 1932. Analyses E, F 

by R. C. Wells, C-M by J. G. FairchiJd, records D-18 and D-41.

SiOa... . . ...

Ah03 .. .............. ......

FezO.! ... 

FeO......... ..............

MgO...... .............

CaO....... .............

NajO.... ..... ...... .

KiO. ......................

mo-. ....................

HtO+.... .................

Ti02 . .... ... 

COa----. ... ..... .....

PS 08 

F.. ........................

S.. ........................

so3 .. ......................

Vj03 - .... . .... . ..... ...

MnO. ........ .............

BaO...... ...... ..... ......

SrO . ........ ...........

E

52.05

15.03

2.78

5.54

4.94

9.27

2.33

1.01

1.18

2.66

1.42

1.86

.28

.06

.02

.07

.05

Trace

.02

.03

100.60 

.03

100.57

F

53.40

13.35

2.58

11.25

2.33

6.58

3.80

1.36

.68

1.50

2.03

.61

.75

.07

Trace

.13

.08

100.48 

.04

100.44

G

51.45

16.30

2.43

7.20

3.16

7.45

2.77

2.33

.50

2.52

2.38

.66

.35

.05

.02

.03

.12

99.72 

.02

99.70

H

48.66

13.40

1.29

11.58

8.72

8.92

3.34

.80

.10

.17

2.77

None

.35

.05

.03

.12

100.30 

.02

100.28

I

72.62

10.17

4.60

1.88

.10

.10

4.53

4.78

.08

.37

.35

Trace

Trace

None

Trace?

None

99.58

J

75.47

9.39

1.21

3.31

.10

.10

2.49

4.46

.03

1.21

.65

Trace

.05

.10

None

None

None

.97

99.54

K

76.18

12.95

None?

2.05

Trace?

.05

3.33

4.59

.02

.85

.15

Trace

.03

None

100.20

L

67.01

13.94

1.00

3.47

.45

1.90

5.63

2.92

.32

2.51

.40

.65

.08

.08

.07

.08

.09

100.60 

.03

100.57

M

57.70

16.28

2.88

6.00

1.55

5.30

4.90

.89

.45

1.35

.91

1.08

.56

.02

.04

.16

.07

.02

100.16 

.01

100.15

71413 37-
8 ANALYSES OF ROCKS AND MINERALS, 1914-36

ARIZONA

AJO DISTRICT

Six rocks collected by James Gilluly. Analyses by J. G. Fairchild, record 

D-281.

A. Micaceous quartz diorite, 700 feet southwest of mine office, Ajo copper 

mine. Quartz, andesine-oligoclase, biotite, chlorite, epidote, apatite, magnetite, 

sericite.

B. Quartz monzonite. East spur of hill south of manager's residence, Ajo 

mine. Quartz, albite, orthoclase(?), chlorite, muscovite, clay(?), barite(?), 

titanite, ilmenite, zircon.

C. Hornblende-biotite-quartz monzonite, almost fresh, 600 feet south of east 

crest of Camelback Mountain, southwest of Ajo. Oligoclase-andesine, orthoclase, quartz, hornblende, biotite, chlorite, sericite, epidote, apatite, titanite, 

magnetite.

D. Albitized quartz diorite, west side of approach cut to Ajo copper mine, 1,000 

feet south of drill-sharpening house. Albite, sericite, epidote, quartz, chlorite, 

magnetite, apatite.

E. Albitized sericitic quartz monzonite, southwest side of mine pit, due east of 

crest of Arkansas Mountain. Albite, sericite, orthoclase, quartz, chlorite, 

apatite, epidote, titanite(?), calcite.

F. Quartz monzonite, 2,890-foot peak west of Gibson Gulch, about 2 miles 

west of Ajo. Oligoclase-andesine, orthoclase, quartz, hornblende, biotite, chlorite, sericite, epidote, apatite, magnetite, zircon, titanite.

Si02 .--.. 

AUOs. -------- 

'FVoOs

FeO.. 

MgO. 

CaO..-..-. --- -- 

NajO. . 

KzO......- --- . - --

HiO-. ............ ------------- ....

H20+..... 

TiOj 

P2 0t. - - -

MnO.... 

COi.. ......... 

F.._ 

01....-. 

SO^.. ....................................

BaO 

BjOj 

A

60.59

17.39

1.60

1.98

2.38

5.06

4.09

1.63

.78

3.29

.61

.36

.08

99.84

B

66.92

15.78

1.30

1.08

1.40

.76

3.46

5.26

.71

1.92

.56

.28

.05

.03

.30

.11

None

99.92

C

66.23

15.71

2.20

1.98

1.58

3.78

3.89

3.22

.03

.67

.47

.24

.08

100.08

D

62.27

17.40

2.35

2.79

2.86

1.19

4.10

2.76

.50

2.65

.84

.30

.05

100.06

E

65.66

15.98

1.45

2.70

2.14

1.88

3.55

3.70

.20

1.52

.60

.31

.02

.47

100.18

F

65.29

15.74

2.05

2.03

1.84

3.66

3.77

4.11

.14

.62

.54

.24

.07

100.10

Five samples of gneiss from the Ajo quadrangle, collected by James Gilluly 

and analyzed by Charles Milton, record D-421.

G. Albite-chlorite gneiss, NE % sec. 29, T. 12 S., R. 6 W. Pre-Tertiny, possibly pre-Cambrian. Quartz, albite, epidote, chlorite, muscovite, magnetite, and 

titanite.

H. Quartz diorite gneiss, same locality. Andesine, quartz, sericite, epidote, 

orthoclase, chlorite, biotite, and magnetite.

I. Quartz-albite gneiss, same locality. Quartz, albite, sericite, andesine, 

calcite, orthoclase, chlorite, biotite, zircon, titanite, magnetite, and apatite.

J. Biotite diorite gneiss, same locality. Quartz, andesine, biotite, chlorite, 

muscovite, magnetite, titanite, zircon, and apatite.

K. Porphyritic albite gneiss, SW }i sec. 28, T. 12 S., R. 6 W. Albite, sericite, 

quartz, epidote, chlorite, hornblende, titanite, apatite, and magnetite.

SiOj 

AhOs~ 

FeaOa 

FeO 

MpO 

CaO. ........

Na2 O. .......

K2 0. -.... 

H2 0-. ...

HsO+ 

G

70.78

14.15

3.19

2.00

1.60

.71

2.16

2

QC

1.33

.14

H

62.13

18.59

2.09

3.24

1.72

3.10

4.09

1.67-

.29

I

65.48

16.39

1.31

2.32

1.56

2.93

3.63

3.14

.20

J

77.23

8.61

4.25

1.97

1.11

1.57

2.20

Ql

- .-81

.07

K

68.21

15.15

3.14

2.26

1.88

2.57

3.47

1.44

1. 32

.17

COj 

Ti02 

ZrOz 

PtOi.. .......

S .... 

MnO-... 

BaO. ........

O

0.15

1.08

.03

.04

.06

.02

.03

100 42-

H

0.13

.79 .04'

.04

.12

.04

.07

-100. 51

I

0.54

.80

Trace

.10

.12

.01

.07

100. 00

J

0.05

1.19

.07

.04

.01

.03

.02

100. 04

K

0.12

.90

.02

.06

.05

.03

.06

100.85
IGNEOUS AND CRYSTALLINE ROCKS 9

Five volcanic rocks from the Ajo quadrangle, collected by James Gilluly. 

Analyses L, M by R. E. Stevens; N-P by J. G. Fairchild, record D-427.

L. Andesitic basalt, north spur of Black Mountain, north center sec. 36, T. 12 S., 

R. 6 W. Plagioclase, augite, glass, magnetite.

M. Augite andesite, SE% sec. 14, T. 13 S., R. 6 W. Augite, plagioclase, glass.

N. Olivine basalt, crest of Black Mountain, sec. 1, T. 13 S., R. 6 W. Olivine, 

iddingsite, augite, plagioclase, glass, magnetite.

0. Hornblende basalt, Childs Mountain, northwest corner sec. 6, T. 12 S., 

R. 6 W. Basaltic hornblende, augite, plagioclase, magnetite, glass.

P. Augite andesite, northwest spur of Childs Mountain, 5 miles west of Batamote Well. Augite, plagioclase, magnetite, glass.

AhOa---- - 

FesOs------

FeO . 

MgO.........

CaO-.. ...

Na 2 0._ .......

K2 0- .....

Rb2 0. .......

CsaO.........

H2 0- 

H2 0+ . ....

L

59.88

15. 75 

3.10

3.31

2.76

5.31

3.62

3.25

None VT

.74

.72

M

56.66

18.14 

5.61

1.65

1.05

5.01

4.39

4.00

None

.77

.64

N

54.79

15.69 

3.92

4.19

5.85

7.31

3.30

2.05

.63

1.07

0

58.42

17.20 

4.29

1.41

3.08

7.75

3.48

1.94

.18

1.10

P

55.61

17.48 

5.09

2.81

6.38

3.40

3. 05

.50

1.25

Ti02 . ........

ZiOt.. ....... 

C02 .... ......

PsOs_. .......

S..... ...... ..

CrtOt.. ......

VzOa 

MnO. .......

BaO. ........

.L

0.81

.04 

.07

.36

.06

10

.08

99.99

M

1.09

.04

.40

.05

.10

.09

99.69

N

1.40

.21

no

100. 50

0

0.90

"~.~70~

.17

.22

no

100. 93

P

1.55

.61

.10

99.89

OATMAN DISTRICT

Rocks collected by F. L. Ransome and described in part in Bull. 743, 1923. 

Analyses by R. C. Wells, record C-336.

A. Biotite-augite andesite (Oatman andesite). Between shaft 1 of the United 

Eastern mine and the main road in northern part of Oatman. No unusual 

minerals. A little free quartz, possibly an inclusion.

B. Biotite andesite, 0.8 mile north of Sitgreaves Pass. Small p'henocrysts of 

plagioclase and biotite in microlitic glassy groundmass.

C. Biotite-hornblende andesite, 0.8 mile east-northeast of Sitgreaves Pass. 

Much like B but it is a distinct body and has larger phenocrysts of plagioclase 

and phenocrysts of hornblende.

D. Biotite andesite (?), 1.9 miles north-northeast of Sitgreaves Pass. Fresh 

perlitic and spherulitic glass with phenocrysts of plagioclase, biotite, titanite, and 

magnetite.

E. Doubtful rock apparently between andesite and rhyolite, 0.5 mile southeast 

of Elephant's Tooth. Small phenocrysts of plagioclase, biotite, quartz, andesite, 

and apatite in a groundmass of glass and obscure feldspars.

F. Biotite latite vitrophyre ("older andesite" of Schrader and of field notes), 

0.3 mile west of summit of Leland Hill. Typical. As usual in this rock, biotite 

is chloritized. Originally glassy groundmass devitrified.

G. Biotite-pyroxene andesite, 0.75 mile southwest of Sunnyside mine, forming 

high cliffs. Perfectly fresh rock. Phenocrysts plagioclase, pyroxene, and biotite, 

with some magnetite and apatite, in a microlitic glassy groundmass.

H. Biotite-pyroxene andesite, 0.2 mile southeast of Sitgreaves Pass. Perfectly fresh. Same constituents as G.

I. Biotite-pyroxene andesite vitrophyre, 0.6 mile south of Sitgreaves Pass. 

Phenocrysts of plagioclase, biotite, and pyroxene, with magnetite and apatite, in 

a glassy groundmass. Perfectly fresh.

J. Biotite-pyroxene andesite vitrophyre, 1% miles east-southeast of Sunnyside 

mine. Evidently a perfectly fresh rock and probably like I.

K. Biotite-augite andesite (Oatman andesite), "green chloritic andesite" of 

Schrader, dump of abandoned shaft 0.9 mile south of Oatman. Phenocrysts plagioclase, biotite, and augite. Groundmass mainly feldspar, magnetite, and glass. 

A little calcite and chlorite.

L. Biotite latite vitrophyre (''older andesite"), 0.75 mile west-southwest of 

Moss mine. Phenocrysts of plagioclase and biotite in glassy, partly devitrified 

groundmass. Some apatite. A little chlorite and calcite.

M. Biotite latite vitrophyre ("older andesite"), 1 mile west-northwest of 

Mount Hardy. Like L.
10 ANALYSES OF ROCKS AND MINERALS, 1914-36

N. Biotite latite, 0.25 mile east of Highland Cliff mine. Small phenocrysts of 

biotite and magnetite in a very fine-grained feldspathic groundmass. Some 

apatite.

0. Biotite-augite andesite, 0.2 mile southeast of Arizona-Rex mine. Phenocrysts plagioclase, biotite, magnetite, and quartz in glassy groundmass. Pyroxene 

very slightly altered to calcite. Fairly abundant apatite.

P. Granite porphyry, representative of large intrusive mass, north side of 

Times Gulch, 1% miles south of Cathedral Rock. Consists of micrographic 

intergrowth of quartz and orthoclase, with biotite and a little magnetite, titanite, 

and apatite.

Q. Quartz monzonite porphyry, representative of large intrusive mass, 0.75 

mile north of Moss mine. Orthoclase, quartz, plagioclase, biotite, amphibole, 

magnetite, apatite, and titanite.

R. Rhyolite, Boundary Cone. An intrusive plug. Phenocrysts quartz and 

orthoclase in very fine-grained granular groundmass, probably quartz and 

orthoclase.

S. Biotite andesite (Oatman andesite), dump of lower west tunnel of Leland 

mine. Usual andesite composition. Some chlorite and calcite.

SiOs ...... ... ...

AlaOj.... ... ... ... .

FeO-.. . 

MgO ...-.

CaO....... ...... ..

NazO. .... -.-.

E:20- ... 

H20-._...........

H2 0+~- ... ... ... .

TiOa...... ...... -

PaOs 

MnO...... ........

COa. . -

SIOs .... . -

AlaOa-...- .... .

FeaOa. ... ....

FeO... .... ... ... 

MgO - 

CaO. ..............

NaaO. ...... .......

K2O......... ......

HaO- . 

HaO+.... 

TiOj 

PiO»...... ..... 

MnO. .............

COa. ... ..

A

56.37

15.99

2.56

3.41

2.97

6.81

2.99

2.89

.38

1.66

1.16

.41

.07

2.18

99.85

B

66.94

15.85

3.14

.32

.30

2.31

4.69

4.65

.75

.32

.53

.17

.05

100. 02

K

53.71

16.63

3.97

3.88

3.69

6.82

2.30

.78

2.01

1.40

.44

.07

1.39

99.96

0

66.06

16.17

4.23

.69

3.04

3.98

4.84

.16

.27

.60

.24

.04

100. 32

L

65.44

15.96

1.63

1.63

.83

2.04

3 7ft

6.49

.11

.53

.52

.18

.05

.54

99.73

D

71.94

13.52

1.09

.37

.16

.95

3.98

5.70

.57

1.65

.23

.04

.06

100. 26

M

65.26

16.39

1.98

1.21

.83

2.16

.34

.47

KC

.14

.05

.14

100.05

E

67.97

14.73

2.34

.47

1.05

1.52

3.19

5.37

1.65

1.29

.48

.11

.05

100. 22

N

63.80

16.92

3.35

.47

.79

2.47

A OC

.72

.93

.55

.30

.07

.02

99.80

F

63.73

15.38

3.05

1.11

.78

1.82

3.68

7.11

CO

.83

.69

.37

.03

.67

99.77

O

61.32

16.33

2.85

1.75

2.15

4.76

3

QA

.74

.65

71

.05

.25

99.98

G

62.96

15.36

2.57

2.09

9 in

4.26

3.84

3.90

.23

1.37

.72

28

.01

100.18

P

72.85

13.45

1.11

.54

.24

1.13

4.01

6 4ft

.08

.40

3Q

04

.06

.27

99.97

H

6). 61

15.62

3.46

1.82

2.13

4.55

3. liO

3.59

1 11

1.71

.91

.28

.04

100. 35

Q

62.54

14.42

3.51

2.57

2.41

4.26

0 QO

o no

.29

.84

1.05

.36

.07

100.13

I

68.94

13.36

1.29

1.04

7Q

2.02

2.20

5.89

no

3.43

.47

.12

.03

99.86

R

77.50

11.29

1Q

.34

.09

.2507

.22

.48

.14

(U

.02

99.89

J

68.25

13.67

1.93

.91

1.02

2.30

3.10

5.40

9Q

2.58

.51

.45

.04

100. 45

S

58.50

15.75

1.70

3.95

2.89

5.54

2.68

A 1 0

1.64

1.21

37

.05

1.19

100. 05

MISCELLANEOUS ROCKS

A-C. Collected by F. L. Ransome and described in Prof. Paper 115, 1919. 

Analyses A and B by George Steiger, record 3173.

A. Final schist, Ray district, from south slope of Red Hills. Quartz, sericite, 

biotite, magnetite.

B. From dump of Prospect mine, Webster Gulch, Miami. Sericite prominent.

C. Leached rock, Miami mine, Miami. Analysis by Chase Palmer, record 

3048.

D. Rock from Mascot mine, Dos Cabezos Range, collected by E. L. Jones, Jr. 

Analysis by R. C. Wells, record 3019.

E. "Schist" or possibly pinite, Glendale. Partial analysis by A. A. Chambers, 

record 3076.
IGNEOUS AND CRYSTALLINE ROCKS 11

Si02... . ...

AljOj ~ 

Fej03 -. ...

FeO - ...

MgO.. .... 

CaO...... ...

NajO ...

KaO. . 

A

65.58

16.47

4.19

2.25

1.29 

1.29

1.42

4.58

B

66.84

17.46

4.88

.74

1.14 

.37

4.65

C

68.30

17.41

3.80

.15

.83 

.04

5.71

D

73.35

\15. 14

.14 

2.06

3.91

E

46.10

/36. 34

\ 2.48

.......

1.11

10.01

HsO-.. 

H,0+.... 

TiOj 

COz ....

PaOj..... 

MnO-. _

A

0.22

2.27

.83

.06 

.06

100. 51

B

0.17

2.61

.67

.03 

.02

100. 11

C

0.15

2.44

.66

.47

100.49

D

} 2.14

.......

100. 10

E

I-"

......

96.04

ARKANSAS

Two samples submitted by C. S. Ross, from Howard' County. Analyses by 

George Steiger, record CM300.

A. Phonolite low in femic minerals from Mine Creek, 4 miles north of Nashville. 

B. Trachyte from Temperance Branch, 3 miles northwest of Nashville.

SiOj .........

Alj03 .. .....

FeaOo ... .

FeO.. .........

MgO.. ........

CaO. ~- 

NajO. .........

A

58.77

20.60

1.40

1.36

.79

7.16

B

A9 Q7

19.00

} 1.13

OR

.54

2.86

KiO. ..........

H2 0-. ........

E2 0+._ ...

TiOj... .....

PjOB .....

S... ........... .

MnO. ..........

A

5.71

.89

2.19

.37

fft

.04

.24

B

10.80

.72

1.26

.26

.10

BaO. . .... ..

SrO _ ~ ...

C02 

Zr02 .... ...

A

0.01

.08

100. 18

B

99.90

AUSTRIA

Serpentine of the picrolite type from Carnot (?), Tyrol. 

Ross. Analysis by J. G. Fairchild, record C-993.

Si02 ..................... 40.97

AljOj.. ..._.. None

FejOs -- 5.55

Submitted by C. S.

FeO.______........ Trace

MgO.... ..-..... - 40.43

CaO.....__...____ None

BERMUDA

HaO. 

Ti02 .

13.80 

None

100.75

Altered lava, augite andesite, from well 1,110 feet deep, collected by L. V. 

Pirsson. Analysis by R. C. Wells, record 2871. Association of the rock described 

by Pirsson and Vaughan, Am. Jour. Sci., 4th ser., vol. 36, pp. 70-71, 1913.

SiOa.. .-.. . ... .... ... .

AlzOa-' ..... ..- ... .

FeaOa - ... ... .......

FeO......... ...... ......

MgO.... ....... ......

38.79

14.55

5.67

6.68

7.78

CaO ..................

NaaO.... ................

KaO. ................

EbO-.. __ ............

H3 0+.. ....... ......

14.65

2.78

2.54

.67

1.99

TiOj.

C02 ..

0.80

3.56

100.46

CALIFORNIA

IVANPAH QUADRANGLE

Granites and latites collected by D. F. Hewett. 

record C-999.

A. Kingston laccolith. 

B. Granite, Erie Crater. 

C. Volcanic neck east of Erie. 

D. Rhyolite, Devils Peak. 

E. Granite, Columbia Well. 

F. Granite, Leiser Ray mine. 

G. Piute Mountain.

Analyses by J. G. Fairchild,

SiOj..... ... ................

AhOs - 

FeaOa-- 

FeO ... ... ... ... ... ..... .

MgO. ...... ..... ... .....

CaO...... ... ... ..... ......... .

Na2 0 . .... .

K2 0 ........................

HaO-. ....................

HiO+... ......................

TiOjA

71.50

1.00

4.17

5.91

B

66.81

16.16

2.01

i 9<;

.72

2.62

3.42

5.66

.10

.48

.35

99.58

C

68.53

.51

3.48

6.19

D

73.58

.05

2.99

5.52

E

67.04

15.37

1.06

2.51

1.33

3.64

3.10

4.61

.12

.40

99.63

F

71.77

14.60

.77

1.77

.20

1.95

3.85

4.31

.53

99.85

G

69.01

2.31

3.91

4.76
12 ANALYSES OF KOCKS AND MINERALS, 1914-36

IAS8EN PEAK

Rocks collected by .1. S. Diller. A to D analyzed by W. C. Wheeler, record 2966.

A. Basalt, 7 miles southeast of Peak, Lake Tartarus.

B. Volcanic ash, collected September 14, 1914.

C. Solfataric mud, 6 miles southeast of Peak, Devil's Kitchen.

D. Solfataric mud, Lake Tartarus.

E. Dacite lava; Devil's Kitchen. Analysis by George Steiger, record 3084.

SiOj-----...

AlsOs------

Fe2O3-----.--

FeO...-...-.

MgO. .-.._..

CaO. ........

Na2 0_. ......

K2O. ........

H2 0 .......

H2 0+.......

A

57.25

18.25

1.44

4.73

4.57

8.12

2.85

.99

01

.65

B

63.86

16.07

1.56

2.31

2.11

4.94

3.59

1.91

1.47

.81

C

54.97

27.72

.88

.32

.20

.39

.41

.46

2.54

9.93

D

47.51

34.08

1.17

.52

.28

.08

.21

.11

1 fiQ

11.60

E

64.52

16.77

1.19

2.82

2.60

5.09

3.78

2.09

.12

.51

Ti02 .- - ..

P2 05 .. .......

S. . ..........

MnO.-. ..

BaO. ........

SrO..........

Li2 0. ........

A

0.42

.01

.18

.05

.08

Trace

100. 01

B

0.45

.04

.12

.84

.05

03

0)

Trace

100. 16

C

0.83

.03

.11

1.11

f\1

0)

Trace

99.93

D

0.65

.09

.81

.63

Trac6

.05

0)

Trace

99 68

E

0.59

N"on,6

.12

no

.06

.04

.02

100. 34

1 Undetermined.

A series of rocks collected by Howel Williams in the Lassen National Park. 

Analyses by George Steiger, record D-29.

F. Recent pyroxene basalt.

G. Recent basalt, northeast of Buttle lake.

H. Augite andesite, east slope of Mount Harkness.

I. Pyroxene andesite, Crystal Cliff, east of Juniper Lake.

J. Pyroxene andesite, Saddle Mountain, Warren Valley.

K. Black andesite of central plateau, east of Hat Mountain.

L. Old pyroxene basalt, Badger Mountain.

M. Hornblende-mica dacite, Divide Peak.

N. Augite andesite, Divide Peak, near Hat Creek.

0. Augite andesite, south slope of Brockeoff Mountain, above Huckleberry 

Lake.

Si02 __ ...-..-.-.-..

A1 2 03 ...........

Fe?0i

FeO..... ..........

MgO ._._..-.

CaO. .............

Na2 0.... ......... .

K2 0........ .......

HaO-. .........

H2 0-K...__ .......

Ti02 .. .......... ..

PiOi.. ............

MnO......-.-.-...

BaO.. ............

F

57.00

16.66

.94

5.40

5.12

7.90

3.46

1.22

.29

.64

90

.29

.12

.02

99.96

O

54.83

17.05

1.47

5.79

5.47

7.72

3.60

1.77

.27

.73

1.25

.42

.11

.03

100. 51

H

47.43

13.19

5.63

7.04

5.20

9.39

2.58

1.79

2.02

1.38

4.00

.55

.12

.04

100. 36

I

63.50

16.76

1.'49

2.80

2.90

5.80

3.59

2.22

.21

.35

.65

.18

.07

.03

100. 55

J

62.75

16.94

1.99

2.46

3.27

6.00

3.55

2.46

.28

.13

.62

.11

.07

.04

100.67

K

59.85

16.68

1.23

4.40

3.85

7.66

3.62

1.46

.20

.53

.65

.15

.12

.03

100. 43

L

61.93

16.37

1.15

3.90

3.26

6.24

3.37

2.00

.18

.74

.60

.16

.08

.04

100. 02

M

70.93

14.31

1.30

1.26

.94

3.24

4.30

2.76

.16

.65

.26

.12

.06

.05

100. 34

N

57.85

16.71

.88

4.93

6.07

8.30

3.04

1.18

.16

.32

.60

' .13

.09

.02

100. 28

0

59.50

17.16

2.27

3.94

3.66

7.07

3.63

1.50

.27

.41

.89

.17

.08

.02

100.57

MOUNT WHITNEY QUADRANGLE

Three rocks collected and described by Adolph Knopf, Prof. Paper 110, 1918. 

Analyses by R. C. Wells, record 2892.

A. Granite, Ransom Creek, altitude 6,000 feet. Quartz, orthoclase, albite, 

anorthite, biotite.

B. Quartz monzonite, Lone Pine Creek, altitude 6,700 feet. Plagioclase, orthoclase, quartz, biotite, hornblende, titanite.

C. Quartz monzonite, altitude 13,000 feet. Quartz, orthoclase, plagioclase, 

biotite, hornblende, magnetite, titanite, apatite.
IGNEOUS AND CRYSTALLINE ROCKS 13

SiOj.. ...................

AhOs -----------

FejOa ----------------

FeO ... .... .... ... ...

CaO... . _.-- __ -

MgO....... ............. Tvjo«n

K2 0 ..................

H2 0-._- ..... ... ...... .

HiO+.... ...... ..... ....

A

76.28

' .47

4.73

B

66.68

15.12

1.66

2.49

4.09

1.38

2.23

4.97

s:

.51

C

69.01

15. 44

1.28

1.28

2.54

.62

3

QK

4.52

QO

.56

TiOz.. ..................

COa--- -------

PzOj... ... .... ... ....

S ... ... ..... ... ... ....

MnO... ..... ............

SrO. ....................

A

2. 615

B

0.64

.21

Trace

.01

Trace

100. 30

2.715

C

0.49

.24

Trace

.01

Trace

100. 17

2.664

PALA DISTRICT

Rocks collected and analyzed by W. T. Schaller, record 2869.

A. Albitite dike near Pala.

B. Graphic granite, Anita gem tourmaline mine, Riverside County.

SiOz.. ....... .-

AhOs -

FeO. ..........

MnO_ .....

A

69.71

25.47

.17

22

B

73.93

13.77

.25

19

.03

MgO... ... .

CaO ..

KiO. ..........

NazO. .... .

LizO 

A

8.24

.22

5.48

B

0.08

.48

2 00

002... --

PzOs...... .....

Total 

A

0.86

100. 37

B

0.16

Trace

100. 05

MISCELLANEOUS ROCKS

A. Volcanic ash from north flank of Santa Monica Mountains, Los Angeles 

County, collected by M. N. Bramlette. , Analysis by Charles Milton, record 

D-180. For bentonite resulting from the decomposition of this rock see "Clays."

B. Hydrothermally altered greenstone from Mother Lode district, collected 

by Adplph Knopf and described in Prof. Paper 157, 1929. Analysis by J. G. 

Fairchild, record C-699. Ankerite, sericite, quartz, albite, rutile, pyrite, and 

minor arsenopyrite.

Al 2 03-.-~ -----

FezOs- -

FeO-..--.....

MgO. .........

CaO 

A

65.66

12.71

1.94

1.60

.71

1.44

B

34.17

i 15. 82

.69

7.61

8.75

NazO.. ..

KzO...... -

H2 0-_ 

HzO+.._... . ..

TiOz .

COj.. -._ ..

A

1.10

1.73

4.34

8.03

.40

B

1.65

4.63

1.94

1.49

15.50

PzOs 

MnO.. .

BnO. FeSz -

A

0.00

.17

99.89

B

2.74

100. 76

i Includes PzOj if present.

C-H. Graphitic schists. Determinations of graphite by George Steiger, records 

3021, 3027, and 2880. C, 11.90; D, 17.48; E, 12.00; F, 7.29; G, 16.2; H, 10.4. 

C. Eighty miles northeast of San Diego. 

D-F. Twenty miles northeast of Saugus. 

G. Leyeo prospect, San Diego County. 

H. Mine of California Graphite Co., Saugus.

COLORADO

BONANZA DISTRICT

Rocks collected by W. S. Burbank and described in Prof. Paper 169, 1932. 

Analyses by J. G. Fairchild, record C-1010.

A. Augite-biotite andesite from ridge just below Superior mine.

B. Similar latite near top of Rawley andesite near mine.

C. Altered andesite, Rawley drainage tunnel, 4,450 feet from portal.

D. Same, 4,070 feet from portal. Red jasper type of alteration.

E. Same with pyrite crystals, 2,600 feet from portal.

F. Silicified andesite, ridge north of Express Gulch.

G. Volcanic rock with kaolin mineral from Greenback Gulch.

H. Same from hill between Greenback and Chloride Gulches.
14 ANALYSES OF ROCKS AND MINERALS, 1914-36

Si02 . ...... .........................

AljOa - 

FeiOz... ............................

FeO. ...............................

MfcO... ............................

CaO... ......... ....................

Na2 0. .......................... ....

K2 0. ...............................

H2 0-. .............................

H2 0+- . . ......

TiOa........ ........................

C02--- 

PsOs ........

S03 .. ............................

Cl.. ................................

s. ................................

MnO ...... ......................

BaO ... . ..................

FeSj... .............................

ZnS....... ..........................

A

57.62

15.84

3.05

3.90

2.14

4.81

3.07

4.95

.24

1.39

1.30

1.06

.44

.05

.15

.04

100. 05

2.732

2.713

B

59.66

16.09

2.57

3.53

2.29

4.48

3.08

4.92

9«,

1 8d

1.00

.10

.35

100. 16

2

7OO

2.686

C

61.28

2.42

31.49

2.49

.05

.28

Trace

.19

.05

.58

.50

.20

.28

'Fro oft

.06

.30

Trace

100. 17

3.227

3.072

D

88.73

.97

3.50

3.56

.05

.24

.02

.69

1.50

.20

0)(')

99.46

2.786

2.667

E

66.48

1.64

.64

2.74

Trace

.20

Trace

.27

Trace

1.64

1.45

.43

None

09

Trace?

24.96

.05

100. 59

3.106

2.998

F

95.18

1.20

77

2.27

Trace

Trace

.40

.25

.06

Trace

100. 13

2.688

2.598

O

82.57

11.44

.16

.65

Trace?

Trace

1.89

.43

2.98

.35

.09

.12

.06

100. 74

H

93.17

2.52

.19

1.92

.03

.05

Trace

.15

.09

1.03

.63

.10

.20

.07

100. 15

1 Undetermined. BEECKENRIDGE DISTRICT

Rocks described by F. L. Ransome in Prof. Paper 75, 1911. Analyses by R. C. 

Wells, record 2426, with corrected fluorine determinations by J. G. Fairchild.

A. Quartz monzonite porphyry, Brewery Hill. Plagioclase, orthoclase, quartz, 

biotite, magnetite, pyrite, apatite, titanite, zircon, and allanite, with very little 

calcite and chlorite.

B. Quartz monzonite porphyry, Browns Gulch. Orthoclase, plagioclase, 

quartz, biotite, apatite, rarely allanite, and secondary epidote, calcite, chlorite, 

and pyrite.

C. Quartz monzonite porphyry, Mount Guyot. Labradorite, orthoclase, 

quartz, biotite, hornblende, titanite, and magnetite.

Si02 . ........ __ ....

AhOs ..... ... 

F6203--- - 

FeO........ .............

MgO... ... .... ..........

CaO ..............

Na2 0 .........

KjO.. ............

EM)- ...............

H2 0+. ...........

TiO2 -- ......

Zr02 . ....... .... ........

C02 ... ..................

P2 06 .- ........ ......

A

67.53

15.46

2.24

2.42

.16

3.24

3.86

.23

CC

.02

flQ

.01

B

68.14

15.29

1.36

1.66

.26

3.03

3.59

4.07

.40

SO

.36

.01

99

.17

C

64.28

Ifi 00

2.59

2.64

1.13

3.78

3.51

.07

9<;

.49

.01

.32

F. ...... ................

S.. ................ ......

V2 03 . 

CtoOs.-- . ... .....

NiO.... ....... ........ ..

MnO ... ......

BaO. ...... . .. ..

SrO. .............

LijO.. ..................

A

0.07

.05

None

.07

99.69

.05

99.64

B

0.04

.81

.01

.12

.03

.03

99.99

.32

99.67

C

0.02

.03

None

.14

.10

.04

100. 34

.01

100. 33

COCHETOPA QUADRANGLE

Rocks collected by E. S. Larsen. Analyses by J. G. Fairchild, record C-663.

A. Augite-hornblende andesite of the middle horizon, north of the Saguache 

River, on trail near head of Spanish Creek, 1 mile from point where trail leaves 

creek.

B. Sheep Mountain andesite, upper horizon, Continental Divide, 0.75 mile 

east of point where long branch trail crosses divide. Chemically rhyolite.

Si02 ._ ......

AhOs 

FeO. ...... .

MrO- ....

A

58.31

16.55

S

on

1.36

2.12

B

70.93

15.87

.33

.08

CaO.... .......

Na2 0. .........

K2 0. ..........

H2 0-. ........

H2 0+. ........

A

6.07

4.00

S

CO

1.02

.36

B

1.28

4.21

5

OQ

.15

1 10

Ti02 ... ........

P2 08 ...... .

A

1.00

.33

99.94

B

0.30

100. 52
IGNEOUS AND CKYSTALLINE ROCKS 15

CONEJOS QUADRANGLE

Rocks collected by E. S. Larsen.

A. Fine-grained olivine andesite, northeast shoulder of Green Mountain, 

halfway up to the top. Less than 1 percent of olivine phenocrysts, augite 18 

percent, a little hypersthene, much andesine, and considerable magnetite. 

Analysis by Glenn V. Brown, record 3270.

B. Similar rock analyzed by George Steiger, record 3252.

C. Pyroxene andesite from the Conejos River 4 miles southeast of west border 

of quadrangle, at an altitude of 11,000 feet. Analysis by R. K. Bailey, record 

C-421-a.

D. Hornblende andesite from north base of Mclntyre Mountain. Analysis 

by J. G. Fairchild, record C-421-b.

E. Felsitic quartz latite from east slope of Caldwell Mountain at an altitude 

of 10,500 feet. Analysis by J. G. Fairchild, record C-663.

F. Biotite-quartz latite from northwestern part of the quadrangle, along trail 

from the Alamosa River to the head of Cat Creek and 2 miles north of Alamosa 

ranger station. Analyses F and G by J. G. Fairchild, record C-421-b.

G. Pyroxene-hornblende andesite, low in dark minerals, from saddle 1 mile 

south of Bennet Peak.

H. Rhyolite tuff from west slope of Mclntyre Point at an altitude of 9,650 feet. 

Analysis by J. G. Fairchild, record C-493.

I. Treasure Mountain quartz latite from west slope of Mclntyre Point at an 

altitude of 9,840 feet. Analyses I to L by J. G. Fairchild, records C-614 and 

C-663.

J. Biotite-augite latite from same locality at an altitude of 10,000 feet.

K. Latite of Chiquita Peak, northeast slope of Green Mountains along the 

ridge at an altitude of 8,750 feet.

L. Andesite-basalt of Hinsdale formation, cliffs north of Mogote Peak.

M. Basalt, intrusive phase, Las Mogotes Peak. Plagioclase, 62 percent; 

augite, 20 percent; olivine, iron oxide, 5 percent each, and secondary minerals, 

8 percent. Analysis by G. V. Brown, record 3270.

SiO}. .......................

Al 2 0s .......................

FejOa-- ~

FeO... ........................

MgO.. ........ ................

CaO ........................

NajO . ... .

ITjO... ........................

HsO-... ......................

H2 0+..... ................. ...

TI02 .. ........................

PjOs.. ....... .................

MnO... ............. ..........

SrO. ........ ................

BaO- ...... ........ ........

COj.. .........................

SiOt... ............ ...... ......

Al,0i........ .............. ....

FezOa.. ........................

FeO.......... ...............

MgO ........... ....... ......

CaO...... ....... ..............

NazO. .. .......................

KjO ... ......................

HjO-... ......................

HS 0-K ................ ... ...

TiOi.. .........................

P8 05 .. ........... ..............

MnO..........................

SrO...... ......................

BaO. ..........................

COj............ ................

ZrOi........ ...................

A

55.21

15.72

4.56

4.58

4.17

6.67

2.89

4.14

.61

.13

1.45

.06

.04

100.23

B

55.55

14.89

4.28

4.22

3.90

6.35

4.35

3.36

.42

.72

1.40 . 98

.12

.07

.07

100. 68

H

61. 76

15.42

4.25

.51

1.95

3.50

2.66

3.84

2.08

2.90

.63

.27

Trace

99.77

C

60.4)

16.20

4.80

2.24

2.21

6.37

4.02

2.64

.44

.12

1.00

.10

100.55

I

68.40

14.90

2.74

.36

.12

2.21

4.24

5.21

.43

.47

.68

.14

99.90

D

59.85

17.31

5.36

.55

1.96

5.60

3.16

2.90

.46

1.64

.63

.31

.11

99.84

J

66.96

16.19

2.99

.49

.16

2.86

4.65

4.88

.26

.10

.63

.17

.14

Trace

.13

.03

100.64

E

64.60

16.71

3.67

.30

1.05

3.45

4.35

4.41

.20

1.06

.60

.20

100. 60

K

61.52

16. 12

3.36

2.32

2.03

4.73

3.72

3.70

.12

1.84

1.00

.27

100. 73

F

64.28

17.16

3.84

.52

.55

1.85

3.94

5.38

1.03

1.05

.90

.20

Trace

100. 70

L

50.95

16.10

6.01

4.23

7.02

8.24

3.59

1.73

.05

.61

1.62

.13

.11

100. 39

G

64.21

16.31

2.87

1.23

1.17

3.61

2.76

4.26

.44

2.69

.57

.20

.06

100.38

M

50.18

16.47

8.92

2.60

6.98

9.30

2.74

1.04

.08

.35

1.60

.29

.03

100.58
16 ANALYSES OF KOCKS AND MINERALS, 1914-36

CREEDE QUADRANGLE

Latite-andesites collected bv E. S. Larsen. Analyses A-C by George Steiger, 

record C-651; D-E and H-J by J. G. Fail-child, "records C-547, C-474, and 

C-663; F-G by R. K. Bailey, record C-474.

A. Table .Mountain.

B. East of Farmers Creek.

C. Under benchmark 12029, Nelson Mountain, Creede and vicinity quadrangle.

D. Nearly black hornblende-pyroxene andesite from shoulder of Mount Hope, 

at 12,500 feet.

E. Hornblende-pyroxene andesite from ridge east of Table Mountain, at 

12,350 feet.

F. Quartz-biotite-pyroxene latite-andesite from west edge of mesa between 

forks of Bellows Creek, north of the Rio Grande, a little north of point 11,511 of 

topographic map.

G. Biotite-hornblende-quartz latite from draw on west slope of hill 9740, 

north of the Rio Grande, between Farmers and Bellows Creeks, at 9,100 feet.

H. Quartz latite from eastern part of quadrangle about 2 miles east of the 

village of South Fork, south of the Rio Grande, at 8,800 feet, in the small gulch 

on the road to the head of Willow Creek.

I. Latite from Alder Creek, Alboroto type.

J. Fisher latite-andesite from southeast slope of McClelland Mountain, at 

1,065 feet.

SiOa--. -- --.

AhOj... ... ..

FeO . .

MgO... ...........

CaO........ ......

Na5 0. ..........

KjO... ............

H2 0-_. ...........

H2 0+. . .......

Ti02 - .... ...

ZrOj...... ........

C02 _. ............

P208 -.. .......

MnO.... .........

BaO........ .......

SrO. ..............

A

69.66

14.92

2.10

.36

.74

1.89

4.24

4.55

.17

.31

.42

.05

.09

.10

.12

99.72

B

64.27

17.89

2.38

.58

.57

2.82

4.32

4.67

.46

.75

.48

.05

.15

.10

.07

.29

.02

99.87

C

65.34

16.00

3 Qfi

.61

78

3.61

3.96

3.59

.52

.38

.59

.04

.18

.09

.08

99.73

D

59 26

17.27

3.63

3.30

2.01

6.01

3.32

2.50

.17

.91

.32

99.41

E

59.95

16.92

4.70

2.42

1 RA

5.83

3.12

2.78fin

.88

.91

.31

.08

100.14

F

Cfl K.A

16.01

3.63

2

O4

2 49

5 44

2 4fl

3.68

oq

1.07

1.10

.51

99.44

G

fid. t\Q

15.22

2 70

j 79

1 OO

3 91

3.52

3.72

.59

1 97

.70

90

100. 16

H

16.13

6 4.fi

09

1 39

4.08

3 CO

3

QO

7Q

QQ

1 00

.32

100. 37

I

64 93

1 K KQ

Q4

1.41

3.68

3.60

4 05

01

.57

.70

91

99.97

J

65.29

15.56

4.13

.55

7Q

3 41

3.66

4 61

.60

948<;

.26

100. 64

Tridymite latite collected by Whitman Cross 100 yards north of schoolhouse at 

Bachelor and described by Emmons and Larsen in Bull. 718, p. 45, 1923. A third 

consists of phenocrysts of orthoclase, andesine, some biotite, and accessory apatite, magnetite, and zircon. The fluidal ground mass is made up of felsitic intergrowths of alkali feldspar and tridymite. Analysis by George Steiger, record 

2875.

SiOs., ......... ......... 67.76

A12 03 .

FeO. 

MgO. 

CaO..

Na2 0.

16.08

2.22

.23

.43

2.59

4.06

K2 0...................

H2 0-.................

H2 0+.................

Ti02_ ............

ZrO2 ........ ..........

C02 ...................... None

PsOi...................

DEL NORTE QUADRANGLE

4.91

.94

.54

.45

.11

g

MnO. ..... ...

BaO ....... 

SrO ...... ...

Total.......

....... 0.02

....... .04

..... .. .12

....... .03

...... 100.55

Rocks collected by E. S. Larsen.

A. Quartz latite from Carnero Creek, 200 yards north of the main forks. 

Analysis by George Steiger, record C-651.

B. Tridymite latite-andesite from canyon of Carnero Creek about 3 miles 

above La Garita post office. Phenocrysts of andesine, hornblende, biotite, augite, hypersthene, magnetite, and apatite, in ground mass of oligoclase, orthoclase, 

quartz, and hematite. Analysis by R. K. Bailey, record C-474.
IGNEOUS AND CRYSTALLINE ROCKS 17

C. Tabular feldspar-pyroxene andesite from a flow 0.75 mile east of west 

boundary of quadrangle on north bank of La Garita Creek. Analysis by J. G. 

Fairchild, record 3293.

D. Vitreous hornblende-augite-quartz latite from locality near head of Bear 

Creek in northwestern part of quadrangle. Fragment, from breccia bed near the 

base of the section. Analysis by George Steiger, record C-651.

E. Soda rhyolite from dike west of center of quadrangle, southwest of diorite 

stock of Sammer Creek. Analysis by George Steiger, record 3252.

SiOj....... .......- -..... -

A\203 ......... ......................................

f 6l03........... ....................................

FeO. ....... ........ .............................. ..

MK 0. ........................................ ......

CaO.. ..............................................

KiO. ................. ..............................

UtO-. .............................................

HiO+.. ............................................

TiOi............ ................ ................... -

ZrOi.....................-........... .- ..........

COa.. ................ ....... ....................

P2 08 ...... ........ ..................................

MnO... ... ... .-....... ........

BaO............. .............. ............. ........

SrO.... ............ ...-._. ._ ....................

Total 

A

64.66

15.46

4.05

.78

1.56

4.12

4.42

2.45

.54

.56

.71

None

.32

.03

.08

99.74

B

59.95

14.62

5.30

1.26

2.76

5.35

4.06

3.52

.55

1.13

1.38

.45

100. 33

C

54.84

18.28

3.98

2.97

2.55

7.24

4.10

3.38

.99

.41

1.40

.49

.08

100. 71

D

65.29

16.17

1.54

1.70

1.23

3.00

3.76

3.93

.22

2.24

.62

.05

Ncne

.10

.08

.15

100. 08

E

71.21

15.24

1.46

.33

.20

1.56

4.41

4.75

.44

.64

.24

.10

C) (')

.03

100. 61

Undetermined.

IEADVHLE DISTRICT

Fresh Mount Zion porphyry collected by G. F. Loughlin and described in Prof. 

Paper 148,1927. Oligoclase-andesine 35 percent, orthoclase 28 percent, quartz 17 

percent, chlorite 10 percent, magnetite 5 percent, calcite 5 percent, apatite less 

than 1 percent. Analysis by J. G. Fairchild, record C-519.

SiOj.. .................. 63. 25

AljOs 16. 16

FejOa - -- 2.60

FeO... ................. 2.44

MgO.-._. - ...... 1.62

CaO. ................... 2.99

NanO --,..... ....... 3.54

K2 0....................... 3.26

HaO-.. ................ .63

HaO+.. -. .-.-... 1.85

C02-.

TiOa.

. 0.88

. .50

.30

100.02

NEDERLAND DISTRICT

Granitic gneiss collected by T. S. Lovering. Analyses by J. G. Fairchild, record 

D-35.

A-D from fifth level of Coldspring mine close to new shaft, about 3 miles northeast of Nederland.

E-F from vein near breast of Lilly tunnel, 2 miles northeast of Nederland.

SiOa...... ................................

AljOa- - 

TfpoOi

feO....... ...............................

M^O........... ..........................

C&O. ....................................

N^O. ...................................

KtO......... .............................

H2O-.._...._.. ........ .............

H2 0+...... ........ .......... ............

TiOi..... ................................

C02 ...... ......................... .......

PaOj.... ....... ......... ..............

SOt.. ....................................

S (total)...... ............................

Total.. ........ ...... ..............

A

65.67

16.52

1.21

2.53

1.00

.08

.81

6.70

.94

2.34

.33

1.70

.22

.02

100. 07

B

63.34

18.21

.79

2.44

1.08

.40

.41

6.11

.71

4.07

.75

1.16

.24

.04

99.75

C

66.61

15.13

1.40

2.26

1.45

1.23

1.20

5.02

1.45

2.08

.54

1.09

.19

.02

QQ (\7

D

68.71

14.93

1.02

2.07

1.50

2.01

2.85

5.14

.14

.56

.62

.46

.16

Trace?

100. 17

E

65.08

15.26

1.30

2.90

.93

.43

.94

8.63

.17

1.38

.75

1.75

.31

.64

100. 47

F

66.31

15.07

1.35

2.71

1.03

2.06

2.48

5.96

.06

.90

.66

.98

.32

.04

99.93
18 ANALYSES OF ROCKS AND MINERALS, 1914-36

Three igneous rocks from Boulder County, collected by E. N. Goddard. Analyses by R. E. Stevens, record D-455.

G. Biotite-sillimanite schist, 2y2 miles S. 60° E. of Jamestown. Biotite, sillimanite, quartz, and muscovite.

H. Augite porphyry, 0.9 mile S. 80° E. of Sugarloaf Mountain, Nederland 

district. Augite, olivine, magnetite, and glass.

I. Hornblende monzonite, 1,700 feet west of Silver Queen mine, Nederland 

district. Large phenocrysts of oligoclase, hornblende, and some mag«etite in a 

fine-grained groundmass of quartz and orthoclase.

Si 02--------.-. ..----...

AlsO3 .......... ...--..

Fej03 .... .......

FeO ..................

MgO....................

CaO. .................

NajO .................

KjO ...--...-......

a

42.20

35.45

1.70

8.18

2.80

.18

4 39

H

37.83

8.52

6.48

5.52

11.44

13.80

2 Of)

1.15

I

63.39

16.75

1.83

3.05

.90

3.85

4.26

3.61

F2 0-- ..... 

H2 0+. .........

TiOj..- -- .....

C02----- ----------

PtOt.. ..................

MnO........ ............

Q

0.19

3.29

1.25

TVopp

.06

.09

100. 33

H

1.24

2. 56

1.35

6.08

1.02

.21

100.02

I

0.13

.93

.35

.09

.39

.14

99.67

SAGTJACHE QUADRANGLE

Sheep Mountain andesite, lower horizon, collected by E. S. Larsen from south 

side of Saguache Creek, about 0.25 mile below mouth of Ford Creek, altitude 

8,400 feet. Analysis by J. G. Fairchild, record C-663.

Si02- .... ....

AJjOs-- 

FejOa ..

FeO. ...........

MgO. ..........

.......... 60.67

.......... 17.50

.......... 3.86

.......... .95

- .-... 1.79

CaO... ....... ...

NasO.. . .... -

K2 0. ......... ...

H2 0-. ..-. .-

H2 0+. ..........

.......... 4.05

.......... 4.45

4 10

.......... 1.09

.......... .43

TiOj .... .....

P2 05 .-~ -

 .- 0.80

...-- . .38

100.16

SAN CRISTOBAI QUADRANGLE

A-H. Rocks collected by E. S. Larsen. Analyses by J. G. Fairchild, records 

C-954, C-474a, C-547, and C-614.

A. Hornblende-quartz latite from first ridge south of Powderhorn Gulch, at 

10,900 feet. About 20 percent of phenocrysts, chiefly labradorite, some greenbrown hornblende, in a groundmass clouded with hematite and carrying minute 

oligoclase laths in glass.

B. Quartz-bearing hornblende-pyroxene andesite from mesa between Red 

Mountain and Middle Creek, 4 miles north of Piedra Peak.

C. Biotite-pyroxene latite-andesite from west slope of Mineral Creek, near 

head, at an altitude of 11,400 feet.

D. Quartz latite with large phenocrysts from ridge south of Grassy Mountain, 

west of Lake San Cristobal, at an altitude of 10,400 feet.

E. Huerto andesite, 2 miles northwest of Cache Lake at top of hill, altitude 

12,355 feet.

F. Latite of Alboroto quartz latite type from Texas Creek.

G. Piedra rhyolite from crest west of Bennett Creek.

H. Treasure Mountain quartz latite, saddle between Vete and Bear Creeks.

I. Alboroto quartz latite, canyon of Texas Creek. Collected by Whitman 

Cross. Contains phenocrysts of andesine-labradorite, quartz, orthoclase, hornblende, augite, biotite, and sphene in a groundmass of quartz and alkali feldspar. 

Apatite, zircon, and iron oxides are present. Analysis by W. T. Schaller, revised 

by J. G. Fairchild in 1925, record 2864.
IGNEOUS AND CRYSTALLINE ROCKS 19

BiOs.. .....................

AljOsFejOsFeO--- .. - . MgO.. ... ... ......

CaOTJn«O

KjO-- 

HjO-.-... . ...

HtO+. ....................

TiOt.......... .............

ZrOa._ ..................

PiOi-..-.- .................

CO...... ...... .............

SOt.. ......................

S... ...... ...... .........

MnO...... .......... ...

BaO...... ...... ...... . .

SrO . .................

Total....... .........

A

66.28

2.46

1.11

.50

3.19

3.89

5.16

.18

.65

.60

.22

100.38

B

57.56

15.06

6.75

1.59

3.43

6.01

3.12

2.84

.61

1.50

.38

.07

.10

.09

.06

.14

99.62

C

58.73

15.73

4.14

2.85

2.69

5.29

3.08

3.34

.76

1.32

1.10

.32

.14

99.49

D

66.18

2.35

1.26

.90

3.20

3.72

4.76

.07

.60

1.20

.13

04

.06

99.78

E

53.65

16.68

4.81

4.48

2.77

7.44

3.01

2.71

QQ

.81

1.80

.45

.27

99.87

F

66.51

15.68

2.43

1.38

1.03

3.40

3.61

4.74

4Q

.61

.50

.20

100.48

G

74.07

13.38

.97

.33

.76

3.72

5.60

.18

.44

.20

Trace

99.65

H

69.07

H as

3.06

.30

.12

1.79

3.48

4.93

.58

1.10

.50

.16

100. 07

I

66.39

15.45

. 2.60

1.13

.85

3.71

3.65

4

CQ

.66

.56

.50

tn

.36

.03

.06

.07

.02

100.56

SAN JUAN REGION

Rocks collected by E. S. Larsen. See Bull. 843, 1935. Analyses by J. G. 

Fairchild: A-B, record 3293; C, C-726; D-G, C-804.

A. Soda syenite from north flank of Mesa Angostulla, 6 miles east of Manassa.

B. Diorite, same locality. Feldspars largely andesine, but some orthoclase 

and albite are present. Biotite, augite, and magnetite.

C. Sheep Mountain andesite 0.5 mile west-southwest of bench mark in Carson 

Pass.

D. Glassy matrix rhyolite from Valles Mountain, N. Mex.

E. Spherulites enclosed in glassy matrix rhyolite from Valles Mountain, N. 

Mex.

F. Andesite from east side of Boot Mountain, northeast corner of Creede 

quadrangle.

G. Rhyolite from altitude of 9,170 feet in canyon 0.5 mile northeast of hill 

10,315, which is midway between Old Woman Creek and west line of quadrangle.

SiOa ........................

AljOs. ................ ... .. .

FejOs--- . -

FeO......-..... .. ..... .....

MgO...........-. ..........

CaO..... ....... ... .... ... .....

NasO.... ......... .............

KjO ......... ...... .

HjO........ ........... .......

HjO+........ ..... ... ..... ..

TiOs--.. ................. ..

P20 S --. ................. ......

MnO-. ...... ..............

A

59.68

18.40

2.54

1.05

1.14

4.24

6.40

4.42

Trace

1.28 ."5

Trace

99.96

B

58.45

16.61

9 74

3.44

2.58

4.66

4.16

4.66

.14

.46

1.38

.51

.08

99.87

C

56.40

16.17

4.19

4.30

3.55

7.07

3.22

2.79

.51

.47

J.31

.29

.12

100. 39

D

71.57

15.10

1.04

.29

.36

1.19

3.88

5.80

.26

.46

.15

.06

100. 16

E

67.04

15.88

3.05

.77

.75

2.37

3.86

5.48

.23

.53

.55

.17

100. 68

F

76.04

12.32

.32

.80

.20

.52

3.51

6.64

.01

.05

.10

100. 51

G

76.46

12.60

.51

.51

.36

Trace

4.60

4.32

.06

.84

.10

100. 36

SPANISH PEAKS DISTRICT

Seven rocks collected by Adolph Knopf. Analyses by George Steiger, record 

D-266.

A. Augite diorite porphyry from dike on Bear Creek. Contains large and 

abundant phenocrysts of labradorite and some augite in a groundmass of plagioclase, augite, and biotite, with minor quartz, magnetite, and apatite.

B. Shonkinite porphyry from Walsen dike, at intersection with WalsenburgGardner road, Walsenburg quadrangle. Consists of phenocrysts of augite, 

biotite, and olivine in a groundmass of augite, biotite, and sanidine, with abundant 

magnetite.

C. Shonkinite from dike near Walsenburg-La Veta road, Walsenburg quadrangle. Consists mainly of augite, biotite, olivine and sanidine, with some 

nosean (?) and abundant magnetite and apatite.

D. Monchiquite from Unfug dike, south of Walsenburg, Walsenburg quadrangle. Contains abundant phenocrysts of olivine and augite in a groundmass 

of biotite, magnetite, apatite, analcite, plagioclase, and sanidine.
20 ANALYSES OF ROCKS AND MINERALS, 1914-36

E. Granite porphyry, east flank of East'Spanish'Peak, Spanish'Peaks quadrangel. A white porphyry crowded with phenocrysts of oligoclase and orthoclase 

and minor hornblende and biotite in a groundmass of feldspar and quartz.

F. Olivine essexite from Huerfano Butte, Walsenburg quadrangle. Consists 

of augite, biotite, olivine, and plagioclase, with minor magnetite, apatite, analcite, 

and titanite.

G. Pyroxene diorite from summit of West Spanish Peak, Spanish Peaks 

quadrangle. Consists of andesine, augite, hypersthene, biotite, and minor 

quartz, magnetite, and apatite.

SiOj...-. .......... ............

AliOz........ ..................

Fe2O3 

FeO ................ .......

MgO ....... . 

CaO.. ... ........ ..

NaaO -. .. ..-

KiO. ........... ........... ....

HjO- .......... .-

H2 0+...... ................. ..

TiO2 .. -........--.........-..-

CO}.. ....................... ..

PsOs.... .. ...

MnO.... ......................

BaO....... .................. ..

CL- . ......................

S ............ .............

SOs ............. ..

ZrOii......... ..................

Less 0=Cl2------------- __ .-

A

54.46

17.47

4.25

2.83

2.90

5.91

4.37

3.06

.53

1.61

1.48

.37

.69

.08

100. 01

B

46.37

11.98

5.05

5.16

8.38

9.33

2.84

4.34

.71

2.17

1.80

.24

1.34

.10

99.81

C

52.90

10.20

3.61

4.44

9.06

6.91

2.20

6.36

.14

1.73

1.17

.63

.11

.07

.07

None

99.60

D

45.18

12.36

4.44

5.72

10.25

10.37

2.64

3.08

.27

2.89

1.63

1.02

.11

.17

.16

.25

100. 48 

.03

100.45

E

73.47

13.74

1.15

.70

.35

' 1.24

4.39

4.52

.22

.18

.34

.08

.06

100. 44

F

46.73

13.04

3.62

7.35

9.66

10.22

3.06

1.93

.33

1.50

1.76

.76

.16

100. 12

G

59.18

15.95

3.00

3.88

2.74

4.73

4.42

3.63

.13

.56

1.36

.16

.52

.10

100. 36

SUMMITVILLE QUADRANGIE

A. Tabular feldspar-pyroxene andesite from Carnero Canyon, collected by E. 

S. Larsen. Analyses A and B by R. K. Bailey, record C-474^b. Phenocrysts of 

calcic labradorite 20 percent, augite 10 percent, hypersthene a little; in the groundmass, andesine 40 percent, orthoclase 10 percent, quartz 6 percent, augite 5 percent, magnetite 7 percent.

B. Similar rock from west slope of Summit Peak, at an altitude of 12,800 feet. 

Carries somewhat more quartz and alkali feldspar and less mantes.

C. Gabbro-diorite southeast of Buckle Lake, at an altitude of 10,500 feet. 

Analyses C to F by J. G. Fairchild, record C-493.

D. Gabbro-diorite from Gold Creek at an altitude of 11,400 feet on northwest 

slope of peak, 400 feet from summit.

E. Basaltic pyroxene andesite near head of the Alamosa River and 1 mile 

southeast of Summit Peak.

F. Latite from west slope of Treasure Mountain.

G. Treasure Mountain quartz latite from northwest slope of Sheep Mountain. 

Analysis by J. G. Fairchild, record C-614.

Si02 . . . .. _ ...

AhOj ...- . .. ...

FeO......... ...-.-. .....

MgO.. .....................

CaO.-..-..- .-. .-.

Na2 0.. ..... ..............

KiO... ........................

HtO.......... ................

B.^0+..... ....................

TiOi.. ........................

P2 05 .... ...... ..... .... .

Zr02 _ .. __ .--..-.........

COj . 

S 

MnO... . ....

BaO 

SrO.. ...... . ...

A

55.86

13.71

5.55

3.67

4.26

6.34

3.40

2.94

.99

.60

1.66

.82

99.80

B

60.21

15.34

3.23

3.10

2.57

4.95

4.06

3.54

.43

.83

1.05

.74

100. 05

C

55.77

15.04

3.77

4.38

4.44

6.58

2.85

2.82

.70

.58

1.14

.28

Trace

.89

. .03

' .07

.06

.13

99.53

D

55.47

16.86

4

Q4

3.33

2.82

6.20

3.34

2.82

.63

.86

1.33I'i

1.45

.13

.04

99.97

E

'57.76

16.24

3.87

3.54

2.76

6.45

3.31

2.59

.80

.72

l.COoe

.11

99.50

F

67.03

15.71

2 74

.69

.60

2.15

3.94

4.72

.47

.75

.64

9ft

TVnoA?

 "TVnnft

99.64

G

70.80

' 14.48

2 14

.16

.14

1.24

3.24

6.58

.13

.57

AZ

.ii

100. 04
IGNEOUS AND CRYSTALLINE ROCKS 21

UNCOMPAHGREQUADRANGLE

Rocks collected by E. S. Larsen. Analyses by George Steiger, record 2982.

A. Biotite rock associated with pyroxenite, collected on the north side of 

Beaver Creek about half a mile southwest of the forks. Rather coaise-grained 

and made up chiefly of biotite with considerable apatite.

B. "Iron ore", variety of pyroxenite. North side of gully passing bench mark 

8104, just below 8,300-foot contour. Rather coarse-grained rock made up of 

about equal amounts of magnetite and perofskite with a little mica, apatite, and 

pyroxene.

C. Garnet-nepheline rock. South of Beaver Creek and south of the mouth 

of North Beaver Creek, at an altitude of 8,540 feet. Coarse-grained, about equal 

quantities of garnet (schorlomite) and nepheline with little pyroxene and apatite.

D. Uncompahgrite. Between Beaver and North Beaver Creeks. Mediumgrained rock made up about half of melilite with considerable pyroxene, biotite, 

apatite/ magnetite, perofskite, and amphibole.

E. Altered uncompahgrite. South of Beaver Creek, just south of hill 8600. 

Contains a little pyroxene in altered melilite. The melilite is altered to garnet, 

diopside, and vesuvianite.

F. Titanite-rich pyroxenite. South of North Beaver Creek about a mile above 

its junction with Beaver Creek. Made up of nearly equal quantities of pyroxene 

and titanite with a little apatite and altered nepheline.

K\O^.. ...................................

AljOa- - ...............................

1FQ2O3. ........................... ........

FeO. ....................................

MgO........... ...... ....................

CaO. .......... ..........................

NajO. ............................... ....

"K^. .............. ...................... UtO-. .................. ................

HiO+ ..... ...... ........... .

Ti02 . ........... .... .. .

ZrOt........... ..........................

COa.... ...... . ...... _- .- ..... ...

PiO«........................ ..... ........

S..... ............ ........................

F.. ....-...... ................. ...... .

01... ........... .........................

OrjOs. ------ .............................

V^........ ..............................

^\Q. ....................................

MnO.... ................................

Es.0. ....................................

SrO......... ..-. ...-- ...... ...

A

22.02

10.80

8.82

6.44

13.02

13.58

.70

4.75

1.51

2.70

8.79

None

6.35

.02

.07

.04

.01

.03

.02

.15

.48

.17

100. 47 

.04

.100. 43

3.386

B

0.99

2.80

24.03

14.26

1.90

19.86

None

.39

.37

35.05

.08

.58

.01

.06

None

.24

None

.06

100. 68

4.335

C

35.82

18.04

9.92

2.02

.77

17.18

6.30

3.04

.42

.82

4.61

.05

.48

.08

.03

.05

None

.19

None

99.82

3.151

D

38.04

6.34

8.45

5.90

7.81

27.19

2.16

.12

.22

.48

1.98

.30

.24

.02

None

.23

None

.26

99.74

3.257

E

40.01

5.41

7.12

1.08

8.89

30.99

.60

 .52

2.00

1.00

1.51

.88

.06

.11

.21

100. 39

3.165

F

43.50

3.97

3.42

4.41

8.12

24.69

1.55

.14

.34

.58

5.35

.66

3.11

.03

.19

.13

100. 19

3.298

G K. Rocks collected by E. S. Larsen.

G. Shonkinite from Wildcat Gulch, altitude 8,100 feet. Orthoclase, augite, 

olivine, biotite, magnetite, apatite.

H. Augite-microcline syenite, south side of Wildcat Gulch, altitude 8,300 feet. 

Micrpperthite, augite, biotite, amphibole, magnetite, apatite, little quartz, 

titanite, zircon, and rutile. These two rocks described by J. Fred Hunter in 

Bulletin 777, 1925.

I. Soda syenite, north fork of Beaver Creek. About 90 percent microperthite, 

10 percent aegirine-diopside, and minor apatite, titanite, zircon, and fluorite. 

Analyses G I by George Steiger, record 2900.

J. Alteration product of melilite, Iron Hill. Analysis by George Steiger, 

record 2909.

K. Alboroto quartz "latite from base of 'the formation, northwest part of 

quadrangle. Analysis by J. G. Fairchild, record C-954.
22 ANALYSES OF KOCKS AND MINERALS, 1914-36

Si02. . ....... ....................

AhOs........... ..... .......................... .....

Fej03 ... ...... ............... ..........

FeO. ...............................................

MgO. ..............................................

CaO......... .......................................

NaaO............. ..................................

KaO. ...............................................

H2 0-. .............................................

H2 0+__ ............................................

Ti02 .... ........ ................................. 

SrOj...... _ ......_..._ _ .__. .

C02 - ............................................

P2 0j.___ __ ..........................................

S. ....... ...........................................

CrjOj............... ................................

V203 - _. ...........................

NiO. ...............................................

MnO. ..............................................

BaO. ...............................................

SrO-_._.._................................_......_.

S03 .. ......... ........ ..............................

CL. ................................................

O

50.86

11.14

2.93

5.21

11.26

6.97

1.73

5.85

.64

.95

.84

.02

None

.79

.02

.11

None

.04

.13

.31

.22

100. 02

H

54.99

12.98

3.13

3.92

5.50

5.67

2.83

7.08

.41

.58

.99

.04

1.00

.05

.01

.04

.13

.47

.17

99.99

I

65.08

16.65

2.01

1.08

.21

1.49

7.31

5.14

.32

.30

.20

.03

.04

.02

None

.13

.03

.03

100. 07

J

33.70

29.40

4.18

18.52

1.45

.72

4.24

.07

3.18

.08

4.65

100. 19

2.443

K

72.94

13.06

.72

1.45

.21

1.08

3,70

6.15

.39

.69

.25

.05

100. 69

MISCELLANEOUS ROCKS

Five intrusives, Eocene, from Gunnison County, collected by J. W. Vanderwilt. 

Analysis A by J. G. Fairchild, B-E by Charles Milton, record D-172.

A. Granite from Treasure Mountain. Orthoclase (perthitic), quartz, biotite, 

a little magnetite, apatite, and titanite.

B. Intrusive from Snowmass Mountain. Orthoclase, oligoclase-andesine, 

quartz, brown biotite, calcite; minor green hornblende, magnetite, apatite, titanite, 

sericite, clinozoisite, chlorite replacing biotite, zircon, a grain or two of strongly 

pleochroic allanite, and possibly leucoxene (dark-brown semiopaque alteration 

product).

C. Intrusive from Snowmass Mountain. Orthoclase, * oligoclase-andesine, 

quartz, brown biotite, green hornblende, magnetite, minor apatite, titanite, 

sericite, zircon.

D. Intrusive from Snowmass Mountain. Minerals similar to B. Much 

calcite replacing mafic minerals. Feldspars albitized.

E. Similar to C.

SiOj.-. -- - Mi03 ... ............................................

FejOs. . 

FeO. .......... .....................................

MgO...............................................

CaO................................................

NajO ................................

KzO. ...............................................

HjO-. .............................................

HiO+. .............................................

Ti02 .._. ........ ....................................

COt.. ..............................................

P^Oi.... ............................................

MnO .................. ... .. . ... ...

BaO................................................

A

76.46

12.58

.52

.59

.13

.52

3.78

5.45

None

.48

.05

.06

.04

100. 66

B

66.19

15.72

2.36

2.13

1 26

2.58

3.87

3.60

} .93

.49

.20

.40

.02

.21

99.96

C

59.68

4.11

4. tl

2.51

6.36

3.42

2.12

/ .05

i .65

.60

.42

.17

.18

100. 69

D

60.67

16.76

1.52

3.64

1.98

2.96

6.48

.60

} 1.98

.50

2.03

.40

.04

.06

99.62

E

56.83

16.67

4.48

2.75

6.45

3.56

1.82

.88

.58

.07

.59

.21

.09

99.60

F. Dike from Fortification Rocks, sec. 12, T. 9 N., R. 91 W., 1 mile north of 

Craig, submitted by C. S. Ross. Olivine, augite, and biotite in glass. Analysis 

by George Steiger, record C-600.

G. Interior of dike.

H. Analcite basalt from top of Breeze Mountain, near Craig. Analyses G and H 

by George Steiger, record C-677.

I-K. Three granites from Climax, collected by J. W. Vanderwilt and described 

in Bull. 846-C, 1933. Analyses by J. G. Fairchild, record C-1129.
IGNEOUS AND CRYSTALLINE ROCKS 23

Si02 ... ... .... .... ......... ............

AhOs. .............................

Fe2 03. ............... .................

FeO. ...................... ............

MgO...... ...............................

CaO.. . ............................. ..

Na2 0.. .. ................................

K2O........ ............................. .

H2 0-. - .. ............................

HjO+ ~ ...... ....................... -

TJ02- . ... .................

PjOj.. ...... .............................

S...... ...................................

CrjOs.. .................. ................

MnO. ...................................

BaO..... . ............................

SrO ........ .... ..................... ..

COa....... ... .........................

ZrO.......... ............................

Cl...... ............................... F..... - .. .-.._-. ........ ..

Mo........... ........... ................

Lump _____________ .. ..

Particles.............................

F

53.48

11.54

 2.84

3.50

8.14

5.45

3.38

3.82

.47

3.68

1.47

.95

.09

.05

.08

..43

.23

None

99.60

Q

52.83

11.87

3.44

3.03

8.38

6.64

2.68

4.95

1.35

1.43

1.42

.87

.06

.88

99.83

H

48.31

14.32

3.48

6.13

7.72

9.12

3.19

2.10

.79

2.75

1.38

.64

.11

None

100.04

I

80.78

9.26

Trace

1.34

.10

.10

.31

7.68

.01

.46

.08

.03

.01

.04

.05

.12

100.37

9 91

2.57

J

78.62

10.80

.05

1.13

.05

.05

.76

8.11

.10

.43

.04

.10

.06

.03

.04

.10

100.47

o oq

K

70.83

14.41

.35

2.94

.56

.64

 2.44

. 6.21

04

1.34

.24

.15

. .01

.02

fM

100.22

2 eft

2.68

 L-R. Volcanic rocks collected by E. N. Goddard and T. S. Lovering, mainly in 

Boulder County.

L. Rhyolite from Lawson arkose 2.8 miles S. 45° E. of Castle Rock, Douglas 

County. Feldspar, biotite, and quartz phenocrysts in a pink felsitic ground mass. 

Sanidine, a little oligoclase and microcline. Analysis by R. C. Wells, record 

D-405. . . M. Biotite latite intrusive breccia from the Mud vein in the lower tunnel of the 

Yellow Pine mine, 5% miles northwest of Boulder. Microlites of oligoclaseandesine with minute shreds of muscovite and a glassy ground mass.

 N. Biotite monzonite from the same locality as B. Small phenocrysts of 

feldspar, biotite, and hornblende in a dark-gray ground mass.

0. Quartz monzonite porphyry from the breast of'Skunk tunnel on the south 

slope of Porphyry Mountain, Jamestown. Analyses M-0 by J. G. Fairchild, 

record D-475.

P. Granodiorite 4,500 feet S. 25° W. from Jamestown. Plagioclase, ortho-

 clase, quartz, hornblende, with magnetite, titanite, apatite, zircon, calcite, chlorite, epidote, and kaolinite in minor amounts.

Q. Granite, South St. Vrain Creek, 3% miles N. 50° W. of Jamestown. Microcline, quartz, orthoclase, biotite, muscovite, with magnetite, apatite, zircon.

R. Biotite schist from old mill site, 0.5 mile southeast of Springdale. Quartz, 

biotite, muscovite, oligoclase, microcline. sillimanite, with apatite, zircon, calcite, 

rutile, and sericite. Analyses P-R by Charles Milton, record D-375.

SiOz ....-..- . .

AljOs-- .................. ...

FejOs ... ... -

FeO - ................

MgO.. ........................

CaO.. .......... ...... ......

Na2 0........ ...:.....-........

KjO ........................

Li, Rb... ........ .............

HiO-. ...... ...............

HiO+...... ...................

TiOs. -...... ...............

 COa ........................

PjOj ............ .........

MnO...... ....................

F.. ............ .

BaO... .. ....... ......

WOi.. ........................

Less 0=F8 .. ..................

L

82.16

8.27

.75

.16

.15

.59

2.19

3.94

.89

1.04

.28

None

.02

.034

100. 474

M

68.23

13.59

1.95

.98

1.39

1.11

.18

3.74

3.59

3.48

.43

1.20

.16

.05

.03

100. 11

N

57.65

15.64

3.08

2.78

1.17

4.33

3.80

4.28

1.44

1.68

.75

3.31

.45

.11

.11

100.58

0

64.14

17.14

1.09

1.04

.41

2.19

4.91

5.41

.62

1.44

.13

1.45

.05

.03

.15

.13

100. 33 

.06

100. 27

P

57.37

16.12

4.32

3.47

2.89

5.74

3.00

4.40

.18

1.11

1.06

.12

.20

.09

.18

.10

100.35 

.07

100.28

Q

68.33

14.77

1.28

2.68

.80

2.30

2.72

5.04

.01

1.07

.77

.05

.11

.04

.20

.14

100.31 

.08

100.24

R

62.04

17.43

.95

7.12

2.07

.52

.68

4.10

.12

2.97

1.16

.88

.05

.06

.17

.09

100.41 

.07

100. 34

71413 37-
24 ANALYSES OF ROCKS AND MINERALS, 1914-36

CONNECTICUT

GUILFORD QUADRANGLE

Eight rocks submitted by Arthur Keith. 

J. G. Fairchild, record 3273. 

A. Haddam granite gneiss. 

B. Same, contact. 

C. Hornblende gneiss. 

D. Stony Creek granite gneiss. 

E. Conglomerate. 

F. Metaconglomerate. 

G. Quartzitic gneiss. 

H. Amphibolite.

Analysis A by R. K. Bailey, B-H by

SiOa.. 

AlaOa. 

FeaOa -.- 

FeO...... 

MgO-- .. .

CaO.. ............ ...... .. ....

KaO. 

NajO 

HjO-. .......... .... ... 

HiO+..... .- -. .. ...........

TiOi .......... . 

ZrOj . 

PiO.............. . 

Cl. ... ..

F 

MnO . .. .

BaO...... ....... .. . .

BrO.............. ...................

LisO...... .. . . ...

CraOs -----

S. ..................... .............

A

72.73

15.53

.83

1.12

.72

4.31

.49

2.17

.06

1.19

.16

.16

.05

Trace

Trace

99.52

B

74.14

12.07

2.10

2.48

1.05

3.88

.39

2.53

.07

1.11

.34

.02

.20

None

Trace

Trace

100. 38

C

66.91

15.47

1.57

3.74

1.80

4.78

1.29

1.70

.03

1.16

.54

.26

.05

None

.14

.10

None

Trace

None

99.54

D

73.56

13.30

.91

2.60

.81

1.88

1.94

2.44

.05

.92

.59

.05

 20s

.03

Trace

.04

.03

Trace

Trace

None

99.35

E

59.20

19.18

Trace

6.51

2.45

1.08

5.41

1.61

.45

1.79

1.25

.05

.21

None

.25

.17

.40

99.99

F

67.56

15.00

1.43

4.64

2.34

4.76

1.54

1.70

.02

.50

.40

.08

Trace

None

Trace

Trace

99.97

Q

76.90

12.10

1.21

1.37

1.86

.40

5.30

.02

.50

.20

Trace

99.86

H

47.90

18.32

1.20-

7.48

9.1&

11.64

1.13

2.35

.02 .49'

.48.

.02

Trace

.18

Trace

None

.06

100. 46-

MISCELLANEOUS ROCKS

Pegmatites described by F. J. Katz in Mineral Resources for 1915, pt. 2, pp. 

43-55, 1917. Analyses by R. C. Wells, record 3135.

A. Howe quarry, South Glastonbury, east wall. Some muscovite and quartz. 

B. Strickland quarry, Portland, sampled across the dike. 

C. Eureka-quarries, Middle Haddam.

D. Gildersleeve prospect, Portland.

SiOa-. ... . ..

AUOs... . 

FejOj (total Fe)...._

MgO. ...... .........

CaO-., 

NaaO. ......

A

72.42

15.88

.54

.65

3.74

B

71.00

16.06

 .63

r\(y

.32

3.75

C

75.20

13.81

.86

.62

4.05

D

74.42

15.13

. 52

.44

5.40

KaO.................

HaO (total)....... 

Ti08 ........ .........

A

6.24

.46

.05

99.98

B

7.65

.34

.04

99.81

C

4.55

.45

.17

99.71

D

3.49-

.39

.02

99.81

DOMINICAN REPUBLIC AND VIRGIN ISLANDS

Five specimens related to andesite, submitted by T. W. Vaughan. Analyses, 

by R. C. Wells, record C-300.

A. Western foothills of Loma de los Palos, Province of Santo Domingo.

B. Loma Pegado, near Maim6n, Province of La Vega. A and B collected by 

C. P. Ross.

C. Andesite hill opposite Arroyo Salado, left bank of Rio Yaque del Sur, 

Province of Azua. Collected by D. D. Condit and C. P. Ross.

D. Island of Vieques, Virgin Islands, western edge of Mosquito. Collected by 

T. W. Vaughan.

E. Culebra Island, northwest peninsula, west of southwest corner of Flamingo 

Bay, east side of divide, on road to abandoned radio station.
25

SiOa . 

AlaOs.. ......

Fea03 

FeO... .......

MgO.........

CaO. ........

NaaO. .......

KjO- ...

HjO.........

H2 0+ 

Ti02 ... ......

ZiOi.. .......

A

51.58

15.15

3.07

8.68

5.76

10.08

1.75

.17

.32

2 OR

.71

None

B

42.82

14.41

1.53

10.13

8.34

11.95

2.76

.27

1.37

4.70

1.87

None

C

60.31

15.57

3.41

1.92

2.72

5.78

4.50

3.34

.28

.50

.57

None

D

61.22

16.47

2.97

3.47

2.54

6.18

3.81

1.77

.19

1.12

.48

None

E

58.47

15.21

2.65

5.88

2.55

3.71

4.82

2.55

.37 1 94

1.09

Trace

COj .......

PiOi.. .......

s... ..........

Vj03 

MnO--- 

BaO. ........

SrO 

A

Trace

0.03

.01

.06

.17

None

Trace

100. 40

B

0.18

.02

.06

.11

None

None

None

100. 52

C

0.21

.23

.03

.05

.43

.06

None

99.91

D

0.13

.04

.06

100. 45

E

0.22

.11

.10

.09

99.76

GEORGIA

Sericite schist, Jasper, 

record 3114.

SiOaAtoOs.

Submitted by P. S. Smith. Analysis by R. K. Bailey,

FeO. 

CaO62.96

29.16

2.88

.33

.40

MgO. 

KaO..

Na2 0.

HaO..

1.21

9.82

1.15

2.27

MnO.... .. ..._.. Trace 

OOj...................... None

100.16

HAWAII

A-D. Four lavas collected by W. O. Clark, Pahala, Kau. Analyses by R. K. 

Bailey, record C-398.

A. Post-Pahala basalt. Pahoehoe on floor of Makanao Valley at southwest 

end of Pakua graben fault, at an altitude of 1,400 feet.

B. Pre-Pahala basalt. Lava overflowing ash bed at Pahala water-supply 

spring, in the east face of Kaumaikeohu Peak, at an altitude of 2,780 feet. 

(This is called "Kaumaikeohu Spring" on label with specimen. Cross.)

C. Pre-Pahala basalt. Makai slope of Clover Hill, at an altitude of 1,250 

feet, N. 30° W. from Naalehu. (The name "Kapuna or Kapuua" is given in 

parentheses after "Clover Hill" on label with specimen. Cross.)

D. Lava covering a considerable area in the Pahala basalt on the slopes back 

of Naalehu. Specimen from gulch N. 10° W. of Naalehu, at an altitude of 1,100 

feet.

SiOj.. ..........

AljOs . 

FejOs.. .........

FeO-.__ 

MgO. ..........

CaO ... 

"MaoO

K3 0. ...... .....

A

45.97

5.98

5.86

7.39

23.55

6.47 1 50

.42

B

48.60

10.75

3.92

9.38

9.80

10.38

2.64

.34

C

49.24

12.72

4.27

8.44

7.10

9.74

1 fi7

.28

D

49.24

13.51

3.86

8.88

5.90

10.44

.46

HjO-. .........

HaO-K. 

TiCh .... .... .

MnO-. .....

PaOj 

COa- .... ....

A

0.04

.64

1.75

.11

.21

99.89

B

0.06

.22

3.37

.05

.18

99.59

0

1.15

1.67

3.40

.10

ns

99.96

D

0.47

.70

3.70

.12

.17

99.85

E-L. Lavas collected by H. A. Powers. Analyses E-J by J. J. Fahey, K by 

L. T. Richardson, L by R. E. Stevens, record D-89.

E. Olaa. Mauna Loa aa flow, road cut on Government road at south boundary 

of Waiakea National Forest.

F. Reservoir, Mauna Loa pahoehoe flow, from reservoir at Piihonua.

G. Quarry, Kilauea pahoehoe flow, National Park quarry, on Hilo road 1 mile 

from observatory.

H. Halemaumau, splash from lava lake, 1917.

I. Halemaumau, splash from lava lake during eruption of Alika flow from 

Mauna Loa, 1919.

J. Halemaumau, pahoehoe flow from northeast edge of floor of Kilauea Crater, 

1919.

K. Halemaumau, pahoehoe flow from south edge of floor of Kilauea Crater, 

1921.

L. Halemaumau, scoria from lava fountain, July 19.29.
26 ANALYSES OF ROCKS AND MINERALS, 1914-36

SiOa. ....... .-_ ...-......_....

AbOj.-........-...- .............

FteOs.. ........ ....................

FeO. ...............................

MgO. ..............................

CaO... .......... ...................

NaaO. ..............................

KjO. ...............................

HaO-.._ ....... ....................

H20+..............................

Ti02 ................... ..........

PjOs.... ...........................

OrjOj..... .......................

NiO. .-.....-...__-. ............

MnO. ..............................

E

50.41

12.37

1.94

9.56

7.68

12,56

1.68

.40

.22

2.26

.57

.05

.004

.06

99.76

F

52.14

13.60

2.31

8.80

7.26

10.14

2.02

.48

.06

.16

2 90

.29

.02

.005

.07

99.55

G

51.35

i q QC

1.32

9.85

7.62

10.74

1.93

.50

.29

2 5fl

.28

.03

.025

.07

99.86

H

50.14

13 !M

.57

1C. 07

8.25

11.17

1.29

.41

.03

3.20

.23

.07

.002

.06

99.42

I

50.37

14.20

1.28

10.10

7 7^

11.24

2.20

.56

.06

0 9Q

.02

.05

.008

.14

100.30

J

50.52

13.85

.98

9 77

7.07

11.33

1.51

.47

.04

3.63

.22

.06

.001

.14

99.59

K

50.85

15.30

.28

10.42

n

<IK

.70

.58

.18

1.55

99

.05

>.002

.10

99.48

L

51.00

13.03

1.83

10.02

6.76

12.40

2.02

.73

.35

2.33

.14

1.C08

.18

100.79

i Quantity of sample insufficient.

M-S. Seven rocks from island of Hawaii, collected by C. K. Wentworth. 

Analyses M-0 by J. G. Fairchild; P, Q by J. J. Fahey; R, S by Charles Milton, 

record D-128. .. . ..." ...

M. From Ka Lae shore about 0.5 mile east of lighthouse. - - - N. Red tuff from Ninole basalt from altitude of about 850 feet, a few rods 

north of Kepue, Hilea.

0. Yellowish-brown tuff from altitude of 5,175 feet at Aukaiakeakua Gulch, 

southeast of Waikii.

P. Red basalt tuff from altitude of about 3,500 feet in Kemole Gulch.

Q. Yellow tuff beneath lava flow at altitude of 2,900 feet in Popoo Gulch, 

north of Keamuku.

R. Yellow tuff from altitude of about 600 feet in face of Puu Kapukapu, 0.5 

mile east of summit.

S. Red palagonite tuff 5 feet below top of road cut 0.25 mile south of Pepeekeo.

SiOa ....... .................

A12O3~. --

Fe20j.-.. 

FeO ........................

MgO......... .... .... 

CaO ....... .................

NajO..... . ....... -

KjO ........................

HjO--_ ... ..-. -.. 

HjO+... ................

TiOj.. ...... .....-. -

COs .. . ... 

PtOi.. ........................

MuO....... ...................

M

45.34

12.56

12.20

1.14

2.72

2.10

 2.44

1.27

7.02

9.20

3.54

.12

.12

. 99. 77

N

33.33

16.36

16.32 .54-

2.36

.82

--- .-12

.04

14.20

11.94

3.92

.10

.20

-100.25

0

37.16

18.94

7.37

5. 93

3.72

5.58

- -2.67

1.00

6.51

6.33

3.51

.10

1.02

.12

Trace

. . -99..96...

P

50.73

19.06

7.48

1.03

1.55

1.92

1,79

1.98

6.14

6.60

1.79

.13

.11

.- - 99..31.

Q

65.58

19.13

6.40

.60

.52

.44

4.59

2.84

2.74

6.58

1.46

.10

.31

. 100. 19.

E

46.03

13.38

9.28

4.22

3.45

5.67

1.04

.38

6.05

6.62

2.93

.58

.34

 99.97

S

3.39

31.72

24.90

.84

.12

.03

.44

.30

8.22

24.27

6.01

- 1.15

.13

100. 52

IDAHO

CASTO QUADRANGLE

Volcanic rocks collected by C. P. Ross and described in Bull. 854, 1935. Analyses by J. G. Fairchild, records C-983 and C-1003.

A. Pink granite from Loon Creek, of post-Eocene age. A doubtful trace of 

cassiterite may be present.

B. Gray granite, Idaho batholith, 1 mile above mouth of Mayfield Creek.

C. Spherulitic rhyolite, near Sleeping Deer Park.

D. Yankee Fork rhyolite member of Challis volcanics, head of Salmon River.

E. Tuff below Yankee Fork rhyolite member.

F. Typical lava, Mayfield Peak. F-J, partial analyses only.

G. Above Forge Creek.

H. Trachyte. East of Mayfield railroad.

I. Lava near Meyers Cove.

J. Lava at top of measured section above Merino Creek.
IGNEOUS AND CRYSTALLINE ROCKS 27

SiOj...- ...........

AljO. .......

FeiOi. ............

FeO... .........

MgO..... .........

CaO-. .... .

Na2 0.. ........ .

K2 0... ............

H2 0- .........

H2 0+ ... ...

TiOj .......

PjOs.. ............

A

71.85

13.55

.67

2.66

.09

1.00

3.53

5.89

.05

.58

.20

.02

100.09

B

69.15

14.49

.93

2.62

.41

2.14

3.84

3.98

.20

1.47

.30

.10

99.63

0

73.74

12.29

1.31

1.25

.39

.38

1.91

5.17

.86

2.06

.20

99.56

D

76.62

11.04

1.14

1.40

.05

.06

1.70

6.86

.20

' .78

.12

99.97

E

73.70

13.58

1 60

.66

.09

.20

.91

5.02

.85

3.53

.12

100. 26

F

57.46

14.40

5.40

3.58

3.33

.30

0

63.92

14.02

6.07

3.44

4.36

.95

H

76.81

3.63

5.51

I

m on

3.30

5.14

J

62.12

14.62

5.81

2.69

3.91

.70

EDWARDSBURO DISTRICT

Seven rocks collected by P. J. Shenon and analyzed by J. G. Fairchild, record 

D-423.

A. Rhyolite, 600 feet south and 35 feet west from center of Crater Lake, 

Profile Gap. Plagioclase (Ab92), quartz, orthoclase, chlorite and calcite, sericitej

a little apatite.

B. Quartz diorite, about 250 feet N. 35° W. of Big Creek Point, Profile Gap. 

Plagioclase (Abes), orthoclase, quartz, biotite, epidote, chlorite, sericite, apatite, 

magnetite.

C. Kersantite (Rosenbusch), 390 feet N. 18° W. from southwest corner of 

Glasgow claim corner, Profile Gap. Plagioclase (Ab70), biotite, quartz, orthoclase, calcite, chlorite, epidote, magnetite, apatite.

D. Quartz diorite, 300 feet N. 10° E. from southwest corner Glasgow claim, 

Profile Gap. Plagioclase (Abos), quartz, calcite, chlorite, sericite, epidote, 

leucoxene, magnetite, apatite.

E. Granodiorite, 3,250 feet west of Red Metal Cabin, Profile Gap. Plagioclase 

(Aba?), orthoclase, quartz, biotite, hornblende, epidote, chlorite, magnetite, zircon, 

apatite.

F. Quartz latite porphyry from sharp point, 2,150 feet S. 85° W. from Red 

Metal Cabin. Plagioclase (Abeo), quartz, orthoclase, biotite, epidote and chlorite 

in biotite, calcite, apatite, zircon, magnetite.

G. Kersantite, 2,200 feet S. 88° W. from New Glasgow Cabin, Profile Gap. 

Plagioclase (Abss), quartz, biotite, calcite, magnetite.

SiOj. 

AhOs ... . ........ ........

FejOj 

FeO 

MgO 

CaO 

Na8O .... ... .........

KjO 

HaOHjO+ 

TiOs.. 

COa. 

PjOj 

MnO. 

FeS2 

A

72.65

13.79

.30

1.80

.35

.53

3.31

5.22

1.27

.12

.67

.04

.02

100. 07

B

67.17

15.80

.70

2.79

1.52

3.79

3.54

2.75

.14

.86

.64

.05

.17

. .06

99.98

0

55.03

14.43

4.20

3.69

3.59

5.25

3.20

2.71

.65

1.96

2.00

1.92

.79

.11

99.53

D

46.46

 13.27

2.60

7.20

7.32

8.20

1.68

1.71

.41

3.25

1.50

5.50

.25

.20

.37

99.92

E

68.76

16.23

.30

2.21

1.16

3.31

3.87

2.71

.04

.62

.47

.05

.09

.05

99.87

F

68.81

14.82

.75

2.34

.90

2.36

3.45

4.65

.06

.94

.45

.19

.09

.07

99.78

O

45.94

14.15

2.80

6.21

5.79

7.48

2.52

2.24

.46

.82

1.80

9.64

.19

.13

100.17

FEND OREILLE DISTRICT

A-C. Three granodiorites collected by J. L. Gillson and described in Jour. 

Geology, vol. 35, p. 1, 1927. Analyses by George Steiger, record C-685. All 

these rocks consist of plagioclase, quartz, microcline, biotite, and hornblende, 

with minor apatite, magnetite, ilmenite, zircon, titanite, allanite, and rutile.

A. Bayview, composite sample.

B. Packsaddle Mountain.

C. Granite Creek.
28 ANALYSES OF ROCKS AND MINERALS, 1914-36

Si02 . ......

AljOs ~

FejOa - 

FeO... .......... ........

MgO.... ................

CaO....... ..............

NaaO.......... ..........

K2 0..... ................

A

62.62

15.63

.97

5.21

2.56

5.79

2.48

2.79

B

66.40

14.40

1.05

3.62

2.40

4

QQ

2.42

3.30

G

65.61

16.10

1.21

3.17

1.42

4 gQ

2.40

3.04

H2 0- . ...

H2 0+.___ ...............

TiOj,. ..................

P2 08 ..................

MnO........ ............

A

0.20

1.27

.88

.23

.10

100. 73

B

0.20

1.07

.68

.19

.09

100. 20

C

0.32

1.05

.60

.21

.09

100. 08

D-H. Five rocks from the Pend Oreille district, collected by J. L. Gillson 

and described in Prof. Paper 158, pp. 111-121, 1930. Analyses by J. G. Fairchild, record C-405.

D. Garnet vesuvianite, metamorphosed magnesian limestone, Cape Horn, near 

Bayview.

E. Sandy argillite from Prichard formation, north of Kilroy Bay.

F. Metamorphosed argillite from Prichard formation.

G. Metamorphosed lower sandstone of Blacktail formation, Chilco Mountain.

H. Same as D but with extreme metamorphism.

Si02~ 

A12 03 - 

FezOa -

FeO... ..... ...

MgO-....._ 

CaO-- ...

Na3O. ........

K2 0... .

H2 0-_.. .

H2 0+__.. 

TiOj..........

D

40.97

13.89

4.56

2.87

3.06

31.99

.08

fiQ

.04

OQ

.48

E

69.06

15.88

1.21

3.17

1.09

1.62

3 Qfi

1

QQ

.75

F

66.95

15.35

.63

4.19

2.01

.62

6.57

TVnpft

1 96

1.00

G

0.28

9 OQ

.12

H

0.88

2

QQ

.14

C02 

B2 0s .

01.............

F.. ...........

BaO. .........

Zr02 .

D

0.89

.25

.15

Trace

.12

Trace

99.81

99.78

E

0.10

.03

2 98.85

F

0.30

.05

.07

99.70

G

0.02

.03

H

0.02

.05

1 Approximate determination.

2 Sample contains organic carbon, probably graphitic.

MISCELLANEOUS BOCKS

A. Nephelite basalt, Fort Hall Indian Reservation, described by Mansfield 

and Larsen, Washington Acad. Sci. Jour., vol. 5, p. 463, 1915. Diopside, 

nephelite, forsterite, biotite, magnetite, ilmenite, apatite. Analysis by W. C. 

Wheeler, record 2902.

B-F. Lavas from Bayhorse region, Ouster County, submitted by C. P. Ross. 

Partial analyses by George Steiger, record D-158.

B. Mill Creek, station 111.

C. South side of old Mackay stage road, station 132.

D. Twin Bridge Creek, station 12.

E. Near Howell's ranch, station 57.

F. On ridge above station 126, at head of Garden Creek.

A12 03 _ ... ... 

FezOs. 

FeO......................... - .. .

MgO_ . 

CaO....... . -

Na2 0.... ... ....... ........ . ...

Z2 0... ....... .............. .....

H2 0....... 

H2 0+ ... ... ... ... ... ... 

Ti02 - 

CO2 .. . -

P2 05 .. .. . . 

S. . 

MnO......... ... .... 

BaO...... .......................... .....

SrO . ............................

A

45.17

10.02

3.55

5.03

19.84

8.57

3.11

1.61

.69

1.58

.54

None

.28

.06

.11

.13

.07

.06

100. 42

B

70.52

1.07

3.48

4.90

0

62.35

4.98

3.44

2.74

D

53.53

7.42

2.62

3.94

E

67.26

3.70

4.02

3.44

F

63.54

3.11

3.34

5.16
IGNEOUS AND CRYSTALLINE ROCKS 29

MAINE

A. Amphibole schist, Scarboro.

B. Same, south of Portland Heights.

C. Granite porphyry, Long Island.

D. Same, Steve Island. All four analyses by W. C. Wheeler, record 2896.

SiOz. ____ ....

AljOs... ____ .

FeaOa ........ .

FeO. ............

MgO.. ..........

CaO .........

TMa.O

K5 0_ ............

A

54.51

17.82

.67

8.59

2.61

7.18

4.03

.43

B

58.46

19.88

.97

8.42

1.65

2.13

1.17

1.15

C

69.90

16.78

.47

2.00

.48

.74 4 84

3.64

D

66.74

16.67

.67

2.99

1.14

3.55

4.46

2.16

HzO-. 

H2 0+.. .........

Ti02 ....... ...

C02 .. ...........

PjOs. ......

MnO.... ........

A

0.24

1.03

1.29

.90

.31

.14

99.75

B

0.19

4.55

.41

.15

Trace

.03

99.16

C

0.28

.78

.39

.17

.09fifl

100. 62

D

0.29

.78

.31

.11

.10

.01

99.98

MARYLAND

Pegmatite, Wright quarry, 2 miles from Marriotsville station, collected by 

F. J. Katz and described in Mineral Resources for 1915, pt. 2, pp. 43-49, 1917. 

Analysis by George Steiger, record 3160.

FezOa ..... ...

MgO... 

CaO---_ ... ..

 . 64.08

.......... 18.63

44

....... _ .17

 ..... .94

NazO 

K2 0 ......

HiO...... .....

.. . . 2.14

10 QO

 .69

TiOz. 

C02-.

0.08 

.40

MASSACHUSETTS

A. Composite sample of Berkshire schist, section across Mount Washington, 

Sheffield quadrangle. Quartz, muscovite, biotite, plagioclase, feldspar, garnet, 

staurolite, calcite, magnetite, and graphite. Collected by Joseph Barrell. 

Analysis by R. C. Wells, with corrected fluorine determinations by J. G. Fairchild, 

record 2431.

B-D. Three rocks collected by B. K. Emerson. Analyses bv Chase Palmer, 

record 3146.

B. Oakdale quartzite, Groton cemetery. Carboniferous. Quartz, biotite, 

traces of muscovite, garnet, graphite.

C. Same, Pepperill Bridge. Minerals as in B, with tourmaline.

D. Same, Dunstable. Same minerals as in B, with titanite.

SiOzAlzOs ....

FeO. . -------

MgO... .

CaO 

NazO 

KzO.. ...... ... ..

HjOHaO+. ..........

TiOz -

COz... 

A

59.29

19.54

1.82

5.65

1.75

1.16

1.25

3.25

1Q

4.06

.99

.20

B

62.67

17.15

.72

3.75

2.89

2.85

2.38

4 03

04

1.28

.75

.57

C

66.94

13. 18

.79

4.73

3.25

2.21

2.38

2.58

.08

1.88

.67

on

D

71.77

12.40

.37

4.17

3.31

2.94

1.26

2.48

09

.98

.68

None

PzOj.. ... 

F 

S ... ... 

CrjOs 

VzO» 

MnO 

BaO -----

SrO ... ... .

Less 0 

A

0.17

.05

.04

.02

.03

.25

.05

99.71

.02

99.69

B

0.20

.07

.02

99.37

C

0.18

.11

.09

99.37

D

0.01

.07

.03

100. 56

E. Granite from Cape Ann, Essex County.

F. Material dissolved from same by nitric acid (2,000 cc of specific gravity 1.20) 

standing in a hole 15 cm in diameter and 15 cm deep for 1% years, covered. 

Volume of final solution, 1,400 cc. Results in grams found in 1,400 cc.

G. Residual granite 15 mm from outer surface.

H. Residual granite 15 to 38 mm from outer surface. Analyses E-H by George 

Steiger, record C-420.

SiOz 

AlzOs 

FezOs 

FeO. -------

MgO. 

CaO.--.-. .

NazO 

KaO . .... ...

HzOE

74.37

12.61

.57

2.01

.04

.77 4 39

4.38

.13

F

.08

5.84

13.24

.21

10.64

9 f^O

2.59

G

12.53

.60

.99

.05

.46 4 50

4.39

.27

H

12.70

.53

1.91

.05

.74

4

nc

4.42

.07

HzO+. -

TiOz 

COz.. ...... 

PzOs 

MnO 

LizO 

E

0.32

.17

.04

.04

.04

99.88

F

0.24

.26

0)

35.60

G

0.30

.07

.03

C)

100. 21

H

0.27

.18

.03

('}

0)

.02

99.91

'Not determined.
30 ANALYSES OF EOCKS AND MINERALS, 191,4-36

MISSISSIPPI

Nephelite syenite from Rankin County, depth 4,027 feet, submitted by S. H. 

Rook through C. S. Ross. Analysis by J. J. Fahey, record D-80.

SiOa - 46.97

Ala03 19.97

FeaOs 3.78

FeO.. - 1.91

MgO.... . .65

CaO 7.22 

NasO 9.04

KaO

HaO-.. ..... ....... ...

TiOa 

COaPaOj 

SOa ... .... ....... ...

5.44

nfi

1.06

.93

1.49

.21 

.40

MnO.. ................ 0.13

BaO .- - .21

SrO .47

99.94

MONTANA

A-C. Porphyritic rocks from Flathead mine, collected by P. J. Shenon. Analyses by George Steiger, record D-250.

A. Latite with large phenocrysts of sanidine and smaller ones of oligoclase in 

a microcrystalline groundmass.

B. Dense gray rock with flow structure and few phenocrysts.

C. Porphyry similar to A but finer-grained. Some zircon, titanite, and 

magnetite.

D. Igneous rock collected by Frank Reeves from a sill 11 miles west of Winnett, sec. 6, T. 14 N., R. 25 E. Described as nepheliterhauynite-alnoite by C. S. 

Ross in Am. Jour. Sci., 5th ser., vol. 11, p. 218, 1924. Olivine, phlogopite, 

haiiynite, melilite, nephelite, augite, magnetite, apatite. Analysis by J. G. 

Fairchild, record C-312-b.

Si02. 

AhOs- - 

FejOs - -

FeO. ........... .

MgO. -. ..

CaO. 

K2 0 -

Na2 0. ........

HjO-.... .... H2 0+. -

TiOa -

PaOj. 

A

67.11

17.17

1.71

.35

None

1.32

3

Ofi

3.46

1.10

9 drt

.52

.23

B

64.96

17.80

2.32

.55

.38

2.10

3 no

5.27

.95

07

.51

.14

C

67.16

16.50

2.52

.35

.21

2.32

5.26

.84

00

.41

.20

D

39.19

8.41

3.47

5.51

22.78

8.90

q oo

2.14

.56

.40

.53

BaO. ...

MnO..-. ....

SOs -- .. 

S.... .- 

CrjOa -

Zr02~ - . 

A

0.18

.38

1.12

.04

100.35

.42

99.93

B

99.78

C

99.73

D

0.24

1.34

.11

100. 47

NEVADA

DELAMAE MINING DISTRICT

Rocks collected by Eugene Callaghan. Analyses by J. J. Fahey, record D-233.

A. Lava overlying rhyolite dikes.

B. Intrusive granodiorite porphyry.

C. Coarse phase of B.

D. Rhyolite dike mineralized in the Magnolia mine.

E. Sills earlier than some of the faulting.

F. "Black porphyry" of dikes.

G. Late rhyolite dike traversing ore shoot.

SiOa 

AlsOs 

FtaOt........ ..................

FeO..-. - ..................

TiOa.. ....................... .

CaO.......... .................

MgO.. ....................

NaaO. .... ... ... 

KaO. ... ................

HaO 

COa 

PaOs... .. ..

MnO. ..................

A

71.42

13.70

.81

1.70 -.36

1.87

.89

2.24

4.52

1.58

1.14

.03

100.26

B

56.85

17.78

2.20

4.32

.97

5.75

3.72

2.89

2.80

1.78

.89

.40

.06

100.41

C

60.68

15.29

2.57

3.68

.99

4.06

3.24

2.88

4.10

2.15

.51

.08

100. 23

D

76.67

12.23

1.08

.57

.10

2.42

5.74

.97

.06

99.84

E

47.67

13.45

3.35

11.40

2.18

3.40

8.77

1.28

.99

5.00

2.42

.52

.06

100.47

F

50.68

14.97

2.06

5.71

.47

6.01

7.04

1.59

2.62

3.01

4.99

.55

.11

99.81

Q

77.28

13.15

.43

.53

.18

.02

.09

6.26

1.76

None

.30

.02

100.02
IGNEOUS AND CRYSTALLINE ROCKS 31

ROCHESTER DISTRICT

Three rocks collected by Adolph Knopf and described in Bull. 762, 1924. 

Analyses by R. C. Wells, record 3187.

A. Soft white rock carrying cinnabar, American Canyon. Sericite and quartz.

B. Aplite, Black Range. Feldspar and quartz. Cuts Triassic rocks.

C. Trachyte from Gold Mountain. Phenocrysts of microcline in a groundmass 

of spherulites of feldspar.

SiOj..... ................

AljOj........... .........

FejOj. __________

Fed.....................

MgO....................

CaO.....................

NajO........... .........

A

74.58

17.24

.65

TVfis*a

.18

.27

B

77.10

12.28

1.04

.04

.24

2.27

C

67.01

15.97

2.54

.44

.19

1.92

KaO.... ...- ....

H8 0... ................ ..

TiOj.. ..................

C08 .. ......... ...... ....

A

4.47

2.72

.17

100.28

B

6.17

.76

.03

99.93

0

11.42

.28

.39

100. 16

YERINQTON DISTRICT

Rocks collected by Adolph Knopf and described in U. S. Geol. Survey Prof.

Paper 114, 1918. A-C, analyses by George Steiger, record 3059. D-E, partial 

analyses by R. C. Wells, record 3044. F, analysis by W. B. Hicks, record 3124. 

G-H, analyses by R. C. WeUs, record 3022.

A. Quartz monzonite. Orthoclase, microperthite, microcline, plagioclase, 

quartz, biotite, hornblende, and accessory titanite, magnetite, apatite, and zircon.

B. Granodiorite. Plagioclase, orthoclase, quartz, biotite, and hornblende.

C. Vitrophyre. Phenocrysts of biotite, augite, and plagioclase.

D-E. Two felsites with cryptocrystalline aggregates of feldspars and quartz.

F. Matrix of garnet.

G. Keratophyre.

H. Pyroxene from gangue of Mason mine.

SiOa.. ...................... .....

Alj03. . --.--.-. ... 

FeaOs ~ ....... ...... ....... 

FeO.. ..............................

MgO.. .............................

CaO............................ ....

NaaO.... ..-....-...-.-...-..._...-

KaO. ......................... ......

 H2 0-.. ...... .......... ........ .

HaO+.. ............................

TiOa .--- ~

ZrOa........ ...................... ..

C0j_. ..............................

PaOs.. ........ .-.-..... . 

S.. .................................

CraOs - - ........ .............

VaOs ................ ......... ....

MnO. .......... .................

BaO ... .......... .............

SrO......... ........... ..........

A

68. 35

14.71

1.69

1.47

1.11

3.11

4.28

3.54

.31

.46

.57

.14

.20

.04

.06

.07

100. 11

B

57.90

. 16. 38

3.02

3.66

3.13

6.33

4.10

2.52

.18

.89

1.12

.08

.42

.09

06

.08

99.96

C

66.03

14.98

1.65

1167

.99

2.62

3.60

4.34

.44

2.46

.48

.07

.11

.07

.11

.08

99.70

D

77.17

113.84

1.47

6.05

.38

E

70.18

i 18. 43

. 2.55

7.46

.44

F

40.89

7.63

' 15. 39

1.26

30.61

G

72.73

14.42

73

.94

.32

.87

4.66

4.50

.36

.36

.22

.04

.19

.07

.01

.09

100.51

H

50.59

.11

1.18

13.05

9.19

23.03

.15

.16

.71

.58

.13

.02

1.52

.02

None

Trace

.26

100. 70

1 AlaOa, etc. » Total Fe. 

Matrix of garnet. Partial analysis by W. B. Hicks, record 3124.

SiO> ...................................... 40.89

AlaOs ................ ..................... 7.63

FeaOs (total Fe). ......................... 15.39

MgO. 

CaO_.

1.26

30.61

MISCELLANEOUS ROCKS

A-C. Three samples collected by A. C. Spencer near Reipetown, Ely district, 

described in Prof. Paper 96, 1917. Analyses by R. C. Wells, with corrected 

fluorine determination by J. G. Fairchild, record 2592.
32 ANALYSES OF ROCKS AND MINERALS, 1914-36

A. Monzonite from Weary Flat. Orthoclase, plagioclase, hornblende, sphene, 

magnetite, apatite, zircon.

B. Siliceous porphyry ore, Copper Flat mine.

C. Capping porphyry, Copper Flat mine.

D. Quartz monzonite collected by J. L. Gillson in the Pioche district and 

described in Prof. Paper 171, 1932. Subporphyritic. Quartz, feldspars, biotite, 

hornblende, accessories. Analysis by J. G. Fairchild, record C-712.

E-F. Two rocks collected by T. B. Nolan from the Mountain City district. 

Analyses by J. G. Fairchild, record D-209.

E. Keratophyre 1,000 feet west of portal of main tunnel of Silver Banner 

mine. Phenocrysts of calcic albite, augite, and sparse quartz with some apatite 

in a glass matrix.

F. Granite from Point of Rocks, across California Gulch from mine. Calcic 

oligoclase, perthitic orthoclase, quart/, biotite, hornblende, and accessory apatite 

and rutile.

G. Latite of recent age collected by Adolph Knopf and described in Bull. 

715, 1921. Partial analysis by R. C. Wells, record 3257. Plagioclase, biotite, 

and hornblende.

H. Altered rock from Tuscarora, collected by T. B. Nolan. Analysis by 

Charles Milton, record D-464. Boiling with 5 percent sodium carbonate for 

15 minutes dissolved about 1 percent of Si02 and a little A12 03.

Si02 _. ......... ...... ........ ____...

AlaOa.-. ... - _- ...

Fe203 ............................

FeO.. ............................ ..

MgO.. ........................... ..

CaO........ .......... ..............

Na2 0. ..............................

K2 0. --...._.. .-.-.-.- ....-. ..

HaO-. ................... ........ ..

H2 0+.. ............................

TiOj...... .....--.__.... ._..._.._

C02 ._ ..............................

P2 05.......... .-...........__-....

F... ................................

Cl.. ............. ...................

MnO...............................

BaO.......... ....... .........

SrO........... ......................

Cu...-........ .. ........... ......

FeS2 -

CU2S..._....... - . ................

A

57.26

17.79

3.39

3.45

2.02

6.58

3.06

4.15

.53

.55

.71

.04

.21

.12

.29

.07

Trace

Trace

.13

100.35

100.30

B

74.62

10.23

.55

.83

.33

6.57

.26

.69

.42

.06

2.32

2.25

.98

100.11

C

80.58

8.51

1.15

0)

.15

.41

5.33

1.29

.29

.06

1.54

.29

.13

100.18

D

65.84

15.29

2.48

2.26

1.06

3.05

3.47

4.53

.01

.67

1.00

.19

.09

99.94

E

69.59

13.17

1.75

2.30

.15

1.49

2.82

5.55

.74

2.09

.80

.05

.09

100.59

F

66.80

.3.26

3.47

4.45

G

69.97

1.77

4.20

5.02

H

75.47

14.48

1.08

.74

.20

.03

3.02

1.63

3.37

.21

100.23

i Undetermined.

I-M. Rocks collected in the Paradise Range, Mineral County, by Eugene 

Callaghan. Samples I, J described in Nevada Univ. Bull., vol. 27, no. 1, pp. 

1-33, 1933. Analyses by George Steiger, record D-157. Analyses K-M also 

by Steiger, record D-424.

I. Diorite dike in lower brucite deposit. Feldspar, quartz, pyroxene, titanite, 

apatite, mica, carbonates.

J. Granodiorite from east side of hill northwest of upper brucite deposit. 

Andesine, oligoclase, orthoclase, quartz, biotite, hornblende, magnetite, apatite, 

titanite, sericite, green biotite.

K. Granodiorite aplite, brucite deposit, Paradise Range.

L. Lamprophyre, brucite deposit, Paradise Range.

M. Andesite porphyry, brucite deposit, Paradise Range.

N. A rock from Tuscarora, consisting of adularia and quartz, collected by 

T. B. Nolan. Analysis by J. J. Fahey, record D-275.

O. Volcanic ash from Kaolin, Wash., collected by W. W. Rubey. Analysis 

by Charles Milton, record D-305.
IGNEOUS AND CRYSTALLINE ROCKS 33

AhOs -

FezOj............. .... ...

FeO.._._....... ........... ....

MgO.............. ....... .....

CaO........... ................

Na2 0.... ...... ................

K2 0...... .....................

H2 0-............ . .... ..

H2 0+........_................

PsOs...........................

TiOi.. ........................

MnO.... ...... .............. ..

S03 -

COj....... .............. ......

I

58.52

14.55

.50

1.50

6.79

4.16

3.79

5.74

.83

2.25

.14

.38

.06

.69

99.90

J

65.33

15.75

1.92

2.42

1.82

4.17

3.92

2.61

.18

.76

.20

.51

.07

.08

99.74

K

73.69

13.92

.73

.55

.61

1.55

3.59

4.00 .'28

.91

.08

.24

.02

.13

100. 30

L

53.11

16.78

2.06

4.98

3.84

6.31

3.28

2.25

.44

2.90

.56

1.13

.10

2.33

100. 07

M

61.72

17.10

1.78

3.10

2.90

5.04

5.03

1.50

.17

.95

.25

.63

.10

.10

100.37

N

74.75

13.61

.83

.21

.02

.82

7.70

} 1.58

.40

99.92

0

57.72

17.18

1.40

.87

3.10

1.90

3.12

3.71

/ 4.90

1 4.95

.06

.40

Trace

.56

99.87

NEW JERSEY

14.87

« 28

5.68 2 44

8.14

£u. /o

3.53

MnO. ....................

Na2 0. ....................

K2O. ........ .....~.......

P2 0j.......... ............

C02 .. ....................

H2 0-. ...................

.25

2.40

2.12

2

OQ

21.28

.07 

1.03

F........ .................

01..... ............. ......

S. ........................

0=Fj_

0.20

.02

.12

100. 59 

.13

100.46

Altered syenite from Rutan Hill, Beemerville, collected and analyzed by 

Charles Milton, record D-264. Calcite, biotite, albite, magnetite, 'apatite, 

ilmenite, pyrite.

SiOj......................

AliOi.....................

FeaO3 . ... ........ 

Feo'.'JIIIIIIIIIIIII ! 

CaO.. ....................

MgO. ....................

NEW MEXICO 

ABIQUIU QUADRANGLE

Rocks collected by E. S. Larsen. Analyses by J. G. Fairchild, record C-253.

A. Quartz-olivine-pyroxene andesite, from upper floor on north slope of Santa 

Clara Canyon, just south of road to Bear Creek. Feldspar 60 percent, augite 19 

percent, olivine 10 percent, quartz 6 percent, iron ores 5 percent.

B. Olivine-augite andesite from Cerro Aire, near Tres Piedras. Cristobalite 

conspicuous.

C. Quartz basalt from Jemez Mountains, '18 miles northeast of Espanola. 

Augite, olivine, magnetite.

SiOj..... ....... ..........

AljOj-................. 

FesOs ..................

FeO............ _. ........

MgO....... ..............

CaO...... ...... .... ......

Na 8 0........... ..........

K2 0........ ..............

A

56.90

15.60

3.12

3.97

5.36

7.04

3.97

2.15

B

57.58

15.76

4.03

3.76

3.30

4.44

2.82

C

56.62

15.62

3.24

3.92

5.32

7 98

3.24

2.88

HjO-.... ............... .

H2 0+.._.. ....... ........

TiOn.. ...................

PaOu......................

MnO ..................

A

0.09

.39

1.45

.32

.15

100. 51

B

0.12

.37

1.50

.51

.15

100. 60

C

0.10

.61

1.41

.34

.14

100. 72

SAN JUAN REGION

A-H. Rocks collected by E. S. Larsen. Analyses A-G by George Steiger, 

record 3289; H by R. K. Bailey, record C-421-a.

A. Basalt from Buffalo Buttes, 20 miles south of Antonio, Colo. Augite 

60 percent, plagioclase (AbszAnas) 33 percent, magnetite 4 percent, olivine 3 

percent.

B. Cristobalite dacite from Antonio Peak, 16 miles south of Antonio, Colo. 

Augite and hypersthene 13 percent, magnetite 3.5 percent, plagioclase (Ab45An6S) 

83.5 percent, orthoclase and Cristobalite.

C. Rhyolite obsidian from Cerro No Agua, 1 mile west of Tres Piedras. Some 

feldspar phenocrysts.
34 ANALYSES OF ROCKS AND MINERALS, 1914-36

D. Latite from mountain north of Hermit Lake.

E. Basalt near Taos Junction, SW% sec. 20, T. 26 N., R. 10 E. Plagioclase 

(Ab4 oAn60) 60 percent, augite 24 percent, olivine 11 percent, magnetite and 

ilmenite 3 percent.

F. Glassy basalt pumice from volcanic cone on Tusas Creek, near San Pablo, 

containing a few crystals of augite. The iron in the pumice is mostly oxidized. 

Resembles the rock from Ortiz Peak (DD, p. 35) in composition.

G. Basalt from volcanic cone 2 miles southeast of Brazos Peak. Andesine, a 

few ferromagnesian minerals, and iron oxides.

H. Quartz latite 2% miles southeast of Brazos Peak, Rio Arriba County.

SiOj.. ... ... ......... ......... ...

AljOj.. . .

FejOa -

FeO__ ........ .... ...

Me.0.. .............................

CaO.. ..............................

N&2O. ...... ........................

K^O. ................... ............

HtO-. .............................

HsO+. . . .. .

T^iO^.... ............................

ZrOs .. ...........................

COa... .. - - -

PiO«.. . ........... . ... .. 

MnO. . 

BaO ...... .......................

SrO ....... . .... ...... ...

A

50.38

16.55

1.45

9.78

7.54

9.27

2.88

.50

.18

.44

1.04

.12

.13

100. 26

B

63.74

15.38

2.63

2.76

1.90

4.57

3.84

3.15

.64

.35

.81

.20

.07

. .06

100. 15

C

73.51

12.86

.35

.42

.15

.60

4.38

4.32

.24

3.26

.02

.01

.02

100. 14

D

72.02

15.28

.97

.74

.26

2.00

3.79

4.35

.45

.40

.22

.02

.11

100. 61

E"

49.65

16.95

2.11

8.54

7.44

8.92

3.21

1.13

.40

.35

1.49

.30

.13

100. 62

F

56.60

15.05

7.57

1.36

5.29

6.84

3.37

1.82

.47

.51

1.05

.12

.12

.07

100. 24

O

51.94

17.74

4.95

6.20

3.40

6.65

4.08

2.02

.15

.31

2.32

.42

.15

.11

100.44

H

73.39

14.82

.67

.44

.34

1.87

4.40

4.20

.40

.04

.14

None

.04

100. 75

I-AA. Nineteen specimens of volcanic rocks from the San Juan district, submitted by C. S. Ross, including three submitted by E. S. Larsen. Analyses by 

J. G. Fairchild, record C-1090.

I. Rhyolite from head of Vallecitos Creek, near divide above Boyd's ranch, 

30 miles northwest of Santa Fe.

J. Rhyolite pumice north of Palado Creek, 2 miles northwest of Boyd's ranch.

K. Andesite of basaltic habit from head of Vallecitos Creek, near divide above 

Boyd's ranch.

L. Andesite from gulch of Pipe Line Canyon about \% miles east of Boyd's 

ranch.

M. Rhyolite tuff from scarp above-Bennett mine, Jemez Canyon, 45 miles west 

of Santa Fe.

N. Rhyolite from east flank of Redondo Peak, 36 miles northwest of Santa Fe.

O. Hornblende andesite from east slope of Tetilla Peak, 14 miles southwest of 

Santa Fe.

P. Obsidian from top of Bearface Mountain, 32 miles west of Santa Fe.

Q. Spherulites from obsidian, Valle de los Pozos, near head of San Antonio 

Creek, 34 miles northwest of .Santa Fe.

R. Obsidian enclosing spherulites.

S. Basalt from Polvaderas Creek, 3 miles south of Canones and 42 miles northwest of Santa Fe.

T. Obsidian from La Cueva, Jemez Creek, 42 miles west of Santa Fe.

U. Obsidian fragments (later volcanic series) from lower white tuff on Peralta 

Creek.

V. Andesite from east slope of Cerro Montoya, about 10 miles west of Santa Fe.

W. Rhyolite, banded rock 2 miles southeast of La Cueva and about 18 miles 

north of Jemez.

X. Stony material from cliff east of creek and near road: same locality as 0.

Y. Latite of Valles Mountain, north side of Santa Clara Creek, 0.5 mile above 

lower contact, Rio Arriba County.

Z. Younger volcanic series, Valles Mountain, hornblende andesite west base 

of peak 8,500, between Bear Creek and Santa Clara, Rio Arriba County.

AA. Andesite from Valles Mountain.
IGNEOUS AND CRYSTALLINE ROCKS 35

SiOs................

Al,03 .-. ...........

FeaOa.. _ . ___ .

FeO....... ........

MgO..............

OaO. ...... __ ...

NaaO. . ............

KS 0 .............

HsO-.._.._.......

HjO+.............

TiOj...............

PS 06 .. .............

C02 .._... ..........

SiOj... ............

Alj08 ...........

FeiOs- ______

Fe0.....j.........

MgO-.-..... ...

OaO...............

NajO..............

KjO... ...... ......

HjO-._. ..........

H,0+.............

TiOj.. ............

Pa05 ............

BaO.-... ..........

SrO...............

00>...............

*

R

76.17

12.38

.58

1.07

.13

.37

3.92

5.49

.17

.10

Trace

100. 38

I

76.16

12.71

.87

.51

.05

.41

3.55

5.35

.05

.36

.14

.07

100. 23

S

49.58

15.77

2.92

8.40

6.38

10.22

3.02

1.26

.26

2.52

.27

100. 60

J

68.87

12.69

2.47

1.59

.73

2.06

3.31

4.59

.20

3.60

.35

.12

100. 58

T

72.56

13.30

.88

1.74

.81

1.77

3.01

5.13

.05

.31

.35

.10

100. 01

K

59.51

15.39

2.61

3.97

2.81

5.89

3.84

2.93

.13

1.47

1.60

.43

100. 58

U

76.59

12.36

.41

1.00

Trace

.40

3.49

-5.27

.05

.32

.14

.07

100. 10

L

64.13

14.96

3.34

.85

1.21

3.43

3.49

4.45

.56

1.44

.60

.27

1.09

99.82

V

' 60.95

15.30

1.98

4.04

2.84

5.19

3.76

3.23

.07

1.11

1.00

.60

.15

100. 61

M

76.75

12.08

1.25

.80

.12

.17

3.94

6.11

.05

.11

.10

.05

100. 63

W

73.29

12.63

.84

2.25

.10

1.78

3.32

5.16

.34

.40

.14

100. 25

N

73.04

13.49

1.70

.79

.10

.47

3.71

5.60

.05

.63

.35

.12

100. 05

X

75.31

12.38

.98

1.60

.10

1.01

3.66

4.46

.13

.23

.13

99.99

0

62.05

15.48

3.59

1.78

2.09

4.95

4.10

3.56

.21

.81

.60

.74

99.96

Y

68.32

15.59

2.79

.30

1.34

3.14

3.34

3.70

.02

.15

.60

.22

.03

None

99.44

P

73.75

12.00

.49

.73

.10

.45

3.44

5.22

.05

4.25

.05

.05

100. 58

Z

63.61

15.69

3.71

.61

1.85

4.23

3.82

2.90

1.28

1.74

.75

.22

.05

100. 45

Q

77.14

12.19

.62

.76

.45

.02

5.44

3.20

.45

.10

Trace

100. 37

AA

57.30

15.48

2.67

3.41

1.49

5.19

3.41

4.32

.42

1.28

.83

.48

4.34

100. 62

BB-II. Various rocks collected by E. S. Larsen in the San Juan region.

BB. Latite 1 mile south of big bend in San Antonio Creek, 7 miles west of San 

Antonio ranger station, Rio Arriba County. Phenocrysts of andesine, biotite, 

and lesser orthoclase in a glassy groundmass. Analysis by J. G. Fairchild, 

record C-421-b.

CC. Olivine andesite from sec. 4, T. 29 N., R. 6 E., 4 miles southeast of Brazos 

Peak and 0.5 mile from the Brazos River. Analysis by J. G. Fairchild, record 

C-547.

DD. Quartz andesite from Ortiz Peak. Analysis by G. V. Brown, record 3270. 

Plagioclase (AbasAnes), augite, magnetite, olivine, christobalite, orthoclase, and 

quartz.

EE. Basalt 6 miles east of the Rio Grande. About 30 percent femic minerals.

FF. From Brazos Canyon. Same minerals as EE.

GG. Basalt from Montosa, top of Cerro. Augite more abundant than olivine. 

Analyses EE-GG by J. G. Fairchild, record C-253.

HH, II. Volcanic glass from Valle de los Pozos, near head of San Antonio 

Creek, 34 miles northwest of Santa Fe, submitted by C. S. Ross. Analyses by 

J. G. Fairchild, record D-8.

HH. Glass immediately surrounding spherulites.

II. Normal glass, same specimen.

SiOz.. ..............................

AbOs... __..., ....... .--.-..

FejOs................... ............

FeO_... ............................

MgO.. .............................

CaO......... .......................

Xta.iO. .............. ................

KaO.. ..............................

H8 0-_ .............................

HjO+._ ............................

TiOj................................

SrO.................................

PsOj................................

BaO.... ............................

MnO...............................

BB

76.79

11.63

1.99

.25

.49

1.70

2.42

4.04

.46

.73

.35

Trace

.04

99.89

CO

58.08

15.30

6.11

1.35

2.29

5.50

3.42

4.48

.89

.71

1.60

.45

100.08

DD

54.76

16.38

4.66

4.88

4.96

7.40

3.04

2.18

.15

.34

1.46

Trace

100.21

EE

57.58

16.76

4.03

3.76

3.30

6.26

4.44

2.82

.12

.37

1.50

.51

.16

100.60

FF

48.72

14.00

5.31

7.66

7.98

9.34

3.02

.97

.03

.55

2.31

.25

.22

100.25

GG

67.08

15.32

3.94

3.84

3.71

6.34

4.52

2.65

.12

.74

1.65

.64

.14

100.59

HH

74.39

12.80

.39

1.42

.05

.82

3.82

5.80

} .49

.12

.05

100.15

II

76.60

" 12. 60

.43

 i 1.33 *"S

13. 86

I 5. 19

.30

.12

.05

99.99
36 ANALYSES OF ROCKS AND MINERALS, 1914-36

MISCELLANEOUS ROCKS

Monzonite from the Magdalena district, collected by A. H. Kosehmann. 

Analysis by J. G. Fairchild, record D-20. Plagioclase, orthoclase, augite, biotite, 

hypersthene, quartz, hornblende, accessory magnetite, apatite, zircon.

SiOj.... .. . 57.08

 14.60

..._ 2,46

FeO.. ................. 5.02

MgO... ............... 4.21

CaO. ........ 6.26

NajO. - . 3.45

KjO...................... 4.04

H2 0-_................... Trace

H2 0+.................... 0.53

Ti02 ---______-._ 1.59

COa.. ..__...._.. Trace

PaOs ................ .60

F-._....._..____._.. ... .14

S...... .............-.. .03

VjOj...................... .06

MnO.__________ Noni. 

BaO-.................... 0.2<>

SrO.... . .__ Trace

Less 0.

100; 25 

.06

100:18

Three latites, Deming quadrangle. Determinations by Chase Palmer, record 

2895, gave Si02 only: 64.75, 58.93, 60.94.

NEW YORK

Pegmatite, Kinkle's "back" quarry, Bedford. Described by F. J. Katz in 

Mineral Resources for 1915, pt. 2, pp. 43-49, 1917. Analysis by R. C. Well's, 

record 3135.

SiOj.............

AliOi....- . 

FejOj (total Fe). 

MgO. ........

73.27

16.63

.49

.14

CaO........

NaaO.......

K2O,.......

HjO (total).

1.21

5.33

2.22

.80

TiOs- 0.05

I'OOl 14

NORTH1 CAROLINA

A. Average sample of pegmatite at Young's quarry, 4% miles from Spruce 

Pine, collected by F. J. Katz and described in Mineral Resources for 1915, pt. 2f 

'pp. 43-49, 1917. Analysis by George Steiger, record 3160.

B. Sericite schist, 0.5 mile N. 40° E. of Steppo Gap, Gaston County, Kings 

Mountain quadrangle, collected by D. B. Sterrett. Analysis by R. K! Bailey, 

record 3046.

8\0t .. .........

AliOs.. -----

FesOs . 

MeO.... 

CaO-- ------

A

67.93

17.11

07

.32

B

45.47

38.09

2 en

.21

.75

Na2 0_.~ ...

K2O_ . .........

H2O-. ........

HiO+.. - 

A

2.54

11. 25

.20

B

4.83

4.63

} 4.79

TiOa - ...

C02.- .........

A

0,02

99.74

B

101.27

OREGON

BAKER QUADRANGLE

A-G. Seven greenstone rocks' collected by James Gilluly. Analyses by J. G.

Fairchild, record D-74.

A. Saddle west of Balm Creek, in NW^ sec. 29, T. 7 S., R. 43 E.

B. No. 2 level, Poorman mine.

C. NEK sec. 35, T. 7 S., R. 42 E.

D. SWK sec. 21, T. 7 S., R. 41 E.

E. SWM sec. 23, T. 7 S., R. 41 E.

F. Mesa top, NE% sec. 8, T. 9 S., R. 42 E.

G. NE% sec. 34, T. 11 S., R. 41 E.

Si02 ... .- 

AhO!- -

FeaOs -. 

FeO ... .. . 

MgO.....- -

CaO ......-.-.-.- 

Na2 0 - 

K2 0 .................... ...

HaO- - -----

HjO+ - 

TiO2 ---. - 

COa . 

PjOs .... -

MnO 

BaO . 

FeSj....... . - .

A

72.31

12.76

1.94

1.26

1.32

.10

3.69

3.82

.26

1.48

.40

Trace

.15

.08

.09

None

99.66

B

53.30

15.16

2.54

8.71

4.14

2.97

5.55

.32

.18

3.14

2.41

.51

.28

None

.40

99.61

C

53. 15

14.39

1.28

9.33

4.74

7.04

4.58

1.01

.19

2.C2

1.50

.10

.19

.14

None

Trace ?

99.66

D

75.04

13.39

1.61

.37

.18

.40

6.36

.83

.24

1.07

.10

.10

.08

.05

None

None

99.82

E

81.33

9.21

1.09

.74

.40

.25

3.25

1.66

.15

1.12

.25

.10

.04

.05

Trace

None

99.64

F

73.49

.22

2.55

5.48

G

78.31

.05

3.86

3.81
IGNEOUS AND CRYSTALLINE ROCKS 37

H-K. Four rocks collected by James Gilluly. Analyses by J. G. Fairchild, 

record C-l 126. All from T. 8 S., R. 43 E.

H. Quartz diorite, sec. 9. Hornblende, andesine, quartz, chlorite, apatite, 

ilmenite.

I. Albite granite, sec. 9. Albite, epidote, hornblende, quartz, chlorite, apatite, 

ilmenite.

J. Pseudoporphyritic albite granite, sec. 8, contains same minerals as I.

K. Similar to J, sec. 13.

SiOa.. ............

AhCh-. .......

FeO. .............

MgO. ............

CaO. ..........

NaaO. ............

VaC\

IhO-. ...........

H

54.67

15.95

2.08

7.48

4.09

7.97

2.71

I

67.81

14.13

1.50

4.04

1.56

3.76

3.36

1.62

.06

J

73.81

12.36

.94

2.97

.78'

1.62

3.89

1.47

.04

K

77.04

11.88

1.05

1.32

.04

1.28

4.45

HaO-K ...........

TiOz....... ......

002..............

PsOj..............

MnO. ............

BaO.... ..........

SrO......... ......

H

1.26

1.16

1.24

.11

.17

100. 05

I

1.24

.79

.45

.06

.13

100. 51

J

0.90

.70

.31

.04

.10

99.93

K

0.54

.37

.14

.04

99.79

BOHEMIA DISTRICT

Fine-grained or altered rocks collected by A. F. Buddington and Eugene

Callaghan. Analyses by George Steiger, record D-54. 

A. Dark-gray porphyritic andesite, Grizzly Saddle trail. 

B. Altered porphyry, Excelsior vein, Champion mine. 

C. Altered felsite, Champion mine. 

D. Grayandesite, west slope South Grouse Mountain. 

E. Altered andesite, tunnel on Evening Star raise. 

F. Reddish andesite, near Bohemia Mountain. 

G. Flow-structure felsite, Wild Hog adit, Vesuvius Basin. 

H. Basalt, Gold Hill, Blue River district.

SiOj.. ..............................

AhOs. 

FeaOs ...... ...... ......... .......

FeO.... ........ ......... .... ..... .

MgO................ ...............

CaO...... .................. .... ....

NasO. ......................... .....

K2 0. ........................ ... ....

HaO-. .............. ...............

H2 0+. ............. ...... ....... ...

TiOz.... .................... ........

C02-.-- --... .-----. -

P«0« .- .- .-. . ..

S03 - ................ ......... ...

a. .......... ........................

MQ..... ............................

Less O- .........................

A

53.27

17.08

2.93

6.06

5.12

9.60

2.28

.72

.15

1.52

1.04

.08

.20

.15

100.20

B

64.41

16.76

5.85

.66

.38

.27

.20

1.80

1.06

4.28

1.18

None

.68

4.29

None

101. 82 

1.61

100. 21

C

74.02

14.73

1.84

.40

.30

.31

.62

2.64

.45

3.89

.52

None

.10

.20

1.09

None

101. 11 

.41

100. 70

D

62.72

15.04

1.73

4.44

2.19

3.83

4.18

2.26

.34

1.91

.95

.38

.21

.10

100. 28

E

63.00

16.98

4.51

1.06

.48

.66

.17

2.10

2.07

4.73

1.20

None

.03

1.21

3.03

None

101. 23 

1.14

100. 09

F

55.18

15.57

3.20

6.06

4.15

7.60

3.08

1.40

.40

2.03

1.46

.07

.14

.14

100. 48

O

69.58

13.68

1.39

1.88

.63

2.68

3.66

3.22

.45

1.46

.44

1.38

.09

.07

100. 61

H

54.25

16.46

3.08

5.92

4.46

8.79

3.46

.80

.26

1.32

1.28

None

.23

.13

100. 44

TAKIIMA REGION

Basic rocks collected by P. J. Shenon. Analyses by J. G. Fairchild, record 

D-64. See U. S. Geol. Survey Bull. 846, pp. 157-159. 1933.

A. Greenstone or oligoclase andesite from SE%SW% sec. 36, T. 40 S., R. 8 W.

B. Greenish oligoclase diorite (metagabbro) from NW% sec. 16, T. 41 S., 

R. 8 W., bottom of Long Gulch. Both rocks fine-grained and somewhat altered.

SiOs. ..........

AltOi. .........

FeaCh . 

FeO. ..........

MgO. .........

CaO. ..........

A

49.31

13.72

2.84

10.64

5.50

6.30

B

49.60

14.10

1.77

8.40

8.34

7.10

NajO.. ........

KsO. ...... ...

HaO-. ........

H2 0+. ........

Ti02.-. ....__._

C02 ...__. __.__.

A

4.44

.53

.37

3.29

2.57

B

2.96

1.05

.34

3.37

1 OK

.80

PaOt.. .........

S (total). ......

CruOs __ ......

MnO... .......

A

0.19

.21

None

.14

100. 05

B

0.18

.05

.05

.14

99.50
38 ANALYSES OF ROCKS AND MINERALS, 1914-36

MISCELLANEOUS ROCKS

A-D. Four basaltic rocks collected by F. G. Wells. Analyses by J. J. Fahey, 

record D-258. See U. S. Geol. Survey Bull. 850, 1934.

A. Norite, Cozad Mountain, Douglas County, sec. 5, T. 24 S., R. 4 W. Labradorite, hypersthene, augite, magnetite, serpentine trace.

B. From Steins Mountain, Lane County, sec. 24, T. 23 S., R. 3 W. Labradorite, 

augite, hypersthene, magnetite.

C. Diabase dike, Douglas County, sec. 29, T. 24 S., R. 4 W. Labradorite, 

augite, olivine, chlorite, serpentine, magnetite.

D. Basalt flow, Douglas County, sec. 24, T. 25 S., R. 4 W. Fine-grained rock.

SiOj. 

AljOj. - .

Fez Oi

FeO. ...............

CaO 

MgO.._ - ..

>jQ.n '

KtO. ...............

TiOt.... ............

A

50.23

15. 85

2.95

7.22

10.16

6.84

I

RQ

.97

1.32

B

53.63

17.95

3.24

4.84

7.88

4.94

9 9>i

1.16

.91

O

47.90

13. 79

5.13

8.26

10.69

6.18

1 7**

.74

2.13

D

47.51

12.81

6.28

6.86

10.84

6.58

2 no

.31

1.75

H2 0- ..... ... 

HjO+ .

PsOj 

MnO. ...........

CrsOj ------ 

COjA

0.51

1.67

.49

.12

f!9

99.93

B

1.10

1.12

.72

.11

.01

99.86

C

0.90

1.13

.82

.16

.02

.14

99.74

D

O QQ

1 Q1

.76

.19

02

. .05

100. 29

E. Granodiorite, collected by G. F. Kay, Riddle quadrangle. Analysis by 

R. C. Wells, record 2893.

F-G. Two basalts from southern Oregon, collected by Eugene Callaghan. 

Analyses by J. G. Fairchild, record D-119.

F. From western part of Cascade Range.

G. Younger olivine basalt from a few miles south of Mount Hood."

H. Igneous rock at Hole in the Ground dam site, Owyhee County. Collected 

by B. C. Renick. Analysis by J. G. Fairchild, record C-626.

SiOs. . .

AhOs ----- --

FeO.... . ........ .

MgO.._ .....

CaO ... ... ...

NajO ...

KjO - ...

HaO-.. ....

HiO+ -. 

E

57.87

16.76

2.21

4.60

3.29

6.23

4.07

2.17

.32

.91

F

57.47

14.95

2.05

7.18

2.74

6.63

3.45

2 1 *

.45

.55

Q

49.85

15.20

1.69

10.50

6.25

9.43

3.08

.97

.24

H

71.71

14.49

2.01

.30

.25

2.35

3.84

TiOa ~ 

ZrOj 

COs. - .....

P2 05 . - .....

MnO_ ... 

BaO. ........ .

FeSj 

E

1.21

.02

.34

.04

.02

.23

100.29

F

1.60

.32

.12

99.66

G

2.50

.40

.16

100. 27

H

0.25

C)

99.26

i Probably contains a very small quantity of PjOs reported as AljOs.

I-K. Three samples of pumice, collected by B. N. Moore, Analyses by J. J. 

Fahey, record D-114.

I. Sec. 8, T. 27 S., R. 8 E., Willamette meridian, Klamath County.

J. Sec. 30, T. 21 S., R. 13 E., Willamette meridian, Deschutes County.

K. Sec. 17, T. 28 S., R. 8 E., Willamette meridian, Klamath County.

L-O. Four rhyolites from Sumpter quadrangle, collected by J. T. Pardee. 

Partial analyses by R. C. Wells, record 3058.

L. Kings Mountain.

M. Water Gulch.

N. Minersville.

0. Bridge Creek.

8102...... AliOs... 

FesOa---- - ... 

FeO ... 

MgO... .... ....

CaO __ .

NajO ... 

KjO .... ....

HaO _ 

TiOj. 

COj . . . ...

PiO« 

MnO ... .... ...... ... ... 

I

68.56

14.22

1.42

1.49

.83

2.35

5.18

2.47

3.32

.58

None

.10

.03

100. 55

J

71.72

13.77

.55

1.34

.52

Trace

4.54

3.75

3.22

.25

None

.06

.02

99.74

K

69.50

15.18

1.24

1.42

.83

2.08

4.78

2.18

2.51

.41

.21

.03

100. 37

L

76.12

.59

4.17

3.55

M

73.75

.66

3.17

4.63

N

75.06

.50

4.23

3.84

0

72.92

.50

3.98

3.63
IGNEOUS AND CRYSTALLINE ROCKS 39

PANAMA

Rocks collected by D. F. MacDonald. Analyses A-D by R. C. Wells, record 

3116; analyses E and F by R. C. Wells with corrected fluorine determinations 

by J. G. Fairchild, record 2799. The Cucaracha rocks are described in Nat. 

Acad. Sci. Mem., vol. 18, pp. 53-68, 1924, and all of them more briefly in U. S. 

Bur. Mines Bull. 86, 1915.

A. Greenish Cucaracha rock.

B. Red Cucaracha rock.

C. Gatun formation.

D. Gatun soil.

E. Andesite, Point Farfan. Specific gravity, 2.57.

F. Granodiorite, Cocovi Islands. Specific gravity, 2.52.

SiOi.. ........................... ........

A.WS-. ........................ ..........

F^03.................. ........ ..........

TfeO.. ...................................

MgO...... ...............................

CaO. ....................................

NaiO........... .I . - . ..

KaO. ......... ......... ..-... ......

HS 0-- ...................... ............

UtO+............... .....................

TiOi......... .......................... ..

ZrOt.. ...................................

COt.................... ..................

P^Oi.. ...................................

SO,.... ..................................

Cl. ...................................... F. .......................................

B. ....................................... CnOz.......... .............. ............

V^Ot.......... ...........................

MnO_.............-.--. .............

BaO.... ........... ......................

C. -................-..--....... .......

LessO..... ....... . ... ..........

A

53.13

16.65

5.19

3.11

1.80

2.34

.85

.59

10.24

4.74

1.04

Trace

.43

.06

.12

Trace

Trace

.05

Trace

100. 34

B

50.44

17.82

9.84

1.27

1.25

1.41

.63

.43

9.97

5.90

1.10

Trace

.10

.04

None

.04

Trace

.02

100. 26

0

37.31

13.09

5.13

1.73

2.56

14.86

1.05

.87

6.99

3.59

.80

.02

9.48

.08

2.50

Trace

Trace

.24

100. 30

D

35.18

28.03

13.47

.13

KA

.21

.18

7.35

11.79

1.55

Trace

.08

.02

.33

Trace

.04

.02

.88

99.76

E

57.39

15.84

2.38

5.96

2.41

5.24

5.23

.84

1.09

1.74

1.35

Trace

.68

.05

.07

.01

Trace

.18

.02

100. 48 

.03

100.45

F

63.51

18.07

2.01

2 1ft

2 10

5.14

4. OS

.88

1.07

.60

.33

10'

.01

.08

.01

TVflpA

.06.

01

100. 42

A«>

100.39

PENNSYLVANIA

A-D. Rocks studied by Florence Bascom. Analyses A-C by R. C. Wells, 

record 3099. D by A. A. Chambers, record 3100.

A. Granite, west end of Furnace Hill, Boyertown quadrangle: Quartz, microcline, microperthite, biotite, muscovite.

B. Quartz diorite, 0.5 mile northwest of Seisholtzville. Quartz, orthoclase. 

micrpcline, albite, oligoclase, biotite, and accessory magnetite, titanite, and 

apatite.

C. Quartz gabbro, hill 1% miles southwest of Blandon. Quartz, labradorite, 

andesine, augite, hornblende, with accessory biotite, magnetite, apatite, and 

zircon.

D. Trachyte porphyry, east of Rittenhouse Gap iron mines, Boyertown quadrangle. Orthoclase, a little hornblende, and secondary sericite.

E. Harpers phyllite, 1 mile southeast of MountvUle, Lancaster County, collected by E. B. Knopf. Partial analysis by J. G. Fairchild, record C-344.

F-G. Quarryville quadrangle. Two rocks collected by E. B. Knopf. Analyses 

by R. K. Bailey, record 3265.

F. fCamargo schist.6 Albite, muscovite, quartz, calcite, tourmaline, titanite.

G. fCamargo schist. Similar to F.

»A dagger (t) preceding a geologic name indicates that the name has been abandoned or rejected for use 

In publications of the U. S. Geological Survey.

71413 37-
40 ANALYSES OF ROCKS AND MINERALS, 1914-36

SiOz 

Alj03 

'FetOt.. .......................

FeO _ MgO ... 

CaO 

NajO 

KjO... 

B.iO......... ............... ..

^0+..... ................ ....

TiOt ...................... ..

ZrOt.. ........................

COi

PtOt.. ........................

s........... ...................

MnO 

BaO .. .. ........

SrO. ...... ....... ... . ......

BOt.. ......... ................

A

73.64

12.82

.65

1.55

1.08

2.47

6.22

.14

.68

.17

.38

.04

.03

.04

100. 03

B

70.54

15.32

.87

1.37

.52

3.42

4.52

1.58

.37

.51

.32

.03

.24

.11

.02

.03

.03

99.80

C

64.42

17.33

.59

3.72

1.40

5.53

4.22

1.05

.37

.53

.46

Trace

Trace

.23

.07

.03

.02

99.97

D

63.40

18.30

3.18

1.77

.33

.70

6.51

5.51

.05

.86

.10

Trace

.06

.08

100. 85

E

67.38

2.18

5.79

F

68.40

12.62

1.80

2.54

1.74

2.20

2.34

5.12

} 1.08

1.13

1.34

.50

.06

100. 89

0

54.99

18.74

2.90

5.49

2.81

.85

1.68

5.36

5.10

1.66

.18

.62

n<i

100. 42

UTAH

FAIRFIELD QUADRANGLE

Six volcanic rocks collected and described by James Gilluly in Prof. Paper 

173, 1932. Partial analyses by J. G. Fairchild, record C-1017.

A. Biotite-hornblende-augite trachyte, breccia near head of City Canyon. 

Biotite, augite, magnetite, orthoclase.

B. Augite-biotite-hornblende latite from Oak Canyon. Also contains plagioclase, quartz, and accessory apatite, zircon, and magnetite.

C. Quartz latite from northwest corner sec. 2, T. 5 S., R. 2 W. Biotite, hornblende, plagioclase, quartz.

D. Obsidian, Tickville Gulch. Phenocrysts of plagioclase.

E. Quartz latite, Tickville Spring. Phenocrysts of quartz, plagioclase, biotite, 

and hornblende.

F. Hypersthene-augite latite from 6,589-foot hill in southwest corner of sec. 8, 

T. 4 S., R. 2 W. With visible orthoclase.

SiOj... 

CaO.. ....... -

NaiO...... .. ..... ... ....... ... .......

K,O. ....................................

A

62.38

5.50

2.68

5.08

B

61.09

4.70

3. CO

3.77

C

65.64

3.26

3.26

3.50

D

72.11

.71

2.53

4.78

E

66.90

2.35

3.34

3.75

F

59.86

4.62

3.31

4 84

GOLD HILL QUADRANGLE

Rocks collected by T. B. Nolan. Analyses by J. G. Fairchild, record C-1015.

A. Hypersthene-augite andesite, 0.25 mile west of benchmark 5045 on Deep 

Creek. Hypersthene, augite, labradorite, hornblende, magnetite, apatite, in 

glass.

B. Biotite-augite andesite, west of benchmark 5030 on Deep Creek. Minerals 

similar to A.

C. Biotite latite 0.75 mile southeast of benchmark 5045 on Deep Creek.

D. Trachyte 1 mile east of benchmark 5120 on Deep Creek.

E. Alkali basalt 1,200 feet northeast of benchmark 5509, Overland Canyon.

SiOi 

AlaOs--. 

FeO 

MgO-. 

CaO... .

NazO.... 

A

61.52 

15.25 

2.20

3.97

2.59

2.31

B

57.94 

16.66 

2.73

KT

.60

4 Q1

1 9Q

C

70.30 

14.92

2.66

D

65.00 

14.28

2.23

E

47.36

2.80

K2O.. .... 

H2 0- .... . 

H>O+- 

TiOa 

PsOj. 

A

3.02 

.36 

2.23

1.00

.16

100. 33

B

8.90 

1.66 

3.82 i fin

.11

100. 19

0

4.37

D

5.19

E

2.66
IGNEOUS AND CRYSTALLINE ROCKS 41

SAN RAFAEL SWELL

Two basic rocks collected bv James Gilluly, described in Am. Jour. Sci., 5th 

«er., vol. 14, p. 199, 1927. Analyses by J. G. Fairchild, record C-908.

A. Analcite diabase, forming part of 80-foot sill, just north of Starvation Wash, 

T. 26 S., R. 6 E. Augite, thomspnitc, biotite, labradorite, olivine, soda ortho- 

 clase, amphibole, magnetite-ilmenite, analcite, apatite.

B. Analcite syenite, same locality. Soda orthoclase, amphibole, labradorite, 

thomsonite, augite, magnetite-ilmenite, biotite, apatite, natrolite.

Si02 ... . .

AhOa..- --

 FeO_. ....... ..

MgO..........

Caf)

A

44.30

13.53

4.11

5.46

10. 48

10.82

B

50.01

17.98

3.05

3.26

3

1Q

7.09

Na2 0.. .....

K2 0_.. . .

H2 0-... ...

H2 0+. ........

TiOj-.--- .

COa 

A

3.13

2.10

.23

2.19

O QQ

.12

B

4.43

4.82

.27

2.95 9 nn

.09

P2 05 .-~ -

SOs ... 

CL. ...... .....

MnO.. ........

A

0.58

ns

.07

.10

99.63

B

0.67

.12

.10

99.97

MISCELLANEOUS ROCKS

A-C. Two rocks from Santaquin-Nebo district, collected by G. F. Loughlin

and described in Prof. Paper 120, pages 101-109, 1919. Analyses by George 

Steiger, record 3154.

A. Lamprophyre dike rock. Augite, biotite, olivine, minor magnetite and 

apatite. 

B. Part of A soluble in HCl.

C. Similar rock with a groundmass of albite. Part soluble in HCl.

D-E. Two latites, collected in the Tintic district, and described by Lindgren 

and Loughlin in Prof. Paper 107, 1919. Partial analyses by George Steiger, 

record 2993.

D. Dike 1 mile southeast of Pinyon Peak. Plagioclase, biotite, and hornblende, with accessory magnetite and apatite.

E. Volcano Ridge. Plagioclase and augite.

F. Granodiorite (Alta stock) from the Wasatch Mountains, Cottonwood special 

quadrangle, collected by F. C. Calkins. Analysis by Charles Milton, record 

D-339. Andesine, quartz, orthoclase, biotite, hornblende, titanite, apatite, 

magnetite, and traces of chlorite and sericite.

SiOz.......... ...................... ......

AlaOa---- - - - 

FezOs...... ......... .--- -.. .---

FeO... ............... ...................

MgO....................... .... ..........

CaO. ...-.-.-....... ...... ... ............

Na2 0. ......_.. ... ..............

K2 0 .......... . ............. .....

EhO-. ................................

H2 0+...... ............ ........ ..........

TiOj...-... ..... ...................

ZrOs.. .............................. .....

C02 ............................ ..........

P2 05 .. .......................... .........

S...........-............ .... ..........

MnO............. .................. ......

BaO... ............................... ...

SrO... .............. - .................

A

45.59

12.02

3.84

5.05

7.09

10.21

1.82

3.90

1.64

3.59

1.67

1.91

1.33

.13

.16

.20

.16

100. 31

2.755

B

10.13

7.42

4.51

5.41

.95

1.91

C

4.10

5.31

4.22

5.52

.51

2.680

D

57.27

2.45

6.06

2.94

3.23

E

53.75

3.30

5.95

3.18

4.13

F

62.16

17.17

2.26

2.78

1.81

4.70

3.96

3.58

.03

.60

.53

.01

.17

.04

.06

.17

100. 03

VIRGINIA

A-G. Seven samples of soapstone and chloritic schist sent in by Scott Turner. 

Mineral analysis by W. T. Schaller, record D-149. 

A-E. From Virginia Alberene Corporation, Schuyler. 

F-G. From Lynchburg.
42 ANALYSES OF ROCKS AND MINERALS, 1914-36

Talc... . _ ... . .__

Chlorite....... .............

Calcite.. _________ ....

Other material _ ............

A

15

25

50

3

2

5

100

B

20

5

35

30

8

2

100

0

35

5

35

20

5

100

D

5

15

65

5

8

2

100

E

50

5

20

20

5

100

F

75

20

3

2

100

O

70

25

2

3

100

H. Emery ore rock \% miles west of Whittles station, Pittsylvania County, 

collected by T. L. Watson. Analysis by George Steiger, record 3197. This rock 

has also been termed "spinellite" and consists chiefly of an aggregate of corundum, 

magnetite, spinel, and iimenite. It is described by Watson and Steiger in Washington Acad. Sci. Jour., vol. 8, pp. 665-670, 1918. Zr, P, S, Ba, Sr absent.

I-J. Two altered gangue rocks with an iimenite vein near Bedford, collected by 

C. S. Ross. Analyses by J. G. Fairchild, record D-286. I, Feldspar partly altered 

to muscovite; J, feldspar partly altered to zoisite.

K. Manganese ore near Suiter, collected by H. D. Miser. Partial analysis by 

J. G. Fairchild, record C-240.

SiOs.. ....... ....

AhOn. ..... ...

FeO.. ...........

MgO... ..... .

CaO .... 

N820 ...... ...

KtO. ............. ..

HjO-.. ..... ....

HjO+ ~

H

2.53

45.38

23.33

17.90

5.71

.06

.20

None

oo

.99

I

60.30

24.06

.15

.05

.07

5.42

5.88

3.57

.78

J

59.62

24.06

.49

.09

.07

4.54

5.36

4.84

03

1.19

K

0 04

2.- 56

TiOa...... ..........

COi.. ......... .....

NiO. ...............

MnO. ... ...... ..

BaO - ... .... ....

Available O _._._...

H

3.72

.07

.05

.04

.15

100. 46

I

0.05

100. 33

J

0.09

'Pro PA

100.38

K

72.37

Pres15.67

90.64

Glauconitic sandstone, Grand Canyon. Partial analyses by Chase Palmer, 

record 2951.

FesOs - .................- ............... ................ ......... .

FeO. ..................... ..................... .................................

EjO. .................... .......................................................

NaaO.. ......... ...... ... ......... ....... . .-..-.......-.-.......-.......-.

A

8.68

1.00

3.30

.18

B

13.12

1.41

5.72

.64

CALIFORNIA

"Oil sands." Analyses by George Steiger, record D-54-a.

A. Oil sand in Temblor formation, Milbom-Kcnnedy well 1, sec. 28, T. 21 S., 

R. 17 E. Portion passing 300-mesh sieve.

B. Same as A. Portion not passing 300-mesh sieve.

C. Bolsa Chica oil sand, Kettleman Hills, King County, sec. 24, T. 22 S., 

R. 17 E. Depth, 7,670 feet.
SANDSTONES AND CHERTS 43

.SiOj.. _..-....-.............. - ..... ...

.AliO,.- .-...... . ..... - .

FeaOj..... _ ............................

FeO........... .. ..... . ... 

MgO........... ... ...... ........

 CaO ... ............................

NajO. ....... .........................

KjO.. ................ ...................

HjO-. ........ ...........................

mo+.. .................................

 TiO,... ..................................

 C0a ............ ......... .... .

Pa06 .- . . ....

:SO,.-.. ..... 

:S'.. .....................................

MnO....................................

A

59.16 

14.03 

2.26 

2.68 

5.20 

2.68 

2.36 

2.14 

2.50 

3.28 

.61 

.33 

.49 

.80 

1.25 

.03

99.80

B

72.48 

7.69 

1.36 

1.88 

6.76 

1.46 

1.76 

1.72 

1.34 

2.44 

.23 

.25 

.22 

.31 

.06 

.03

99.99

0

Soluble 

in cold 

1-10 HC1

0.08 

1.00 

3.17

1.95 

4.71

None 

1.98

12.89

Soluble 

in hot 

1-10 HC1

1.24 

1.15 

2.22

.80 

.28

None 

7.66

13.35

Insoluble 

in 1-10 

HC1

44.91 

14.70 

.97

.95 

1.33

.97

63.83

Determination 

made on 

original 

rock

0.50 

3.80 

5.78

10.08

100.15

i Pyrite is present in small quantity. Sulphur probably p resent as an organic compound. M. N. Short 

< estimates pyrite as less than 0.1 percent.

NEVADA

A sample of chert collected by S. H. Cathcart from Triassic strata on Pilot 

Mountain, just east of Mina, representing several thousand feet. Secondary

 silica with accessory plagioclase, sericite, epidote, zircon, apatite, rutile, and

 calcite. Analysis by J. G. Fairchild, record C-521.

SiOj ......- ..................-......... 95.84 KjO -. --- ..................

AlaOs, ZrOj, PjOj.. ................. 1.97 NajO . ...................

FejOa, FeO . ........................ .70 TiOj. ...................... 

'CaO-. - -- _ ... . .37 

MgO........................................ .12 99.63

0.36 

.14 

.13

NEW MEXICO

Two samples studied by B. C. Renick with reference to ground waters. 

Determination of minor constituents by J. G. Fairchild, record C-668.

A. Poleo sandstone from ravine 1 mile west of Miller ranch, San Ysidro, 

.'Sandoval County.

B. Massive red sandstone below Poleo sandstone and above the scarlet red 

member. From mesa east of Jemez Creek and 2 miles south of junction of San 

Diego and Guadalupe Canyons, Sandoval County.

(Fe,Al)s08 ...... ... .1 

CaO.... ....... ..................

'MgO- ..........................

' (Na.K) 2O._-. ............ .......

Percent soluble 

in 1-1 HC1

A

0.19 

.13 

.03 

.07

B

0.78 

.17 

.05 

.06

80s -

Soluble in boiling 5 percent

Percent soluble 

in 1-1 HC1

A

0.12 

.12

B

0.01 

.60
44 %

ANALYSES OF ROCKS AND MINERALS, 1914-36

OKLAHOMA

A-F. Oil sands submitted by A. F. Melcher. 

record C-394.

A. Waite Phillips well 1.

B. Sinclair well 2.

C. Carter well 4.

D. Waite Phillips well 5.

E. Phillips Skilly well 4.

F. Producers & Refiners well 6.

Analyses by E. P. Henderson,.

Insoluble in HC1... ... __ . __ . __ ....

UtOt^. ...................................

CaO. ....................................

MgO.... ........................... ......

CO2 ............. ........................

A

83.52

9.45

.15

.88

94.00

B

83.90

7.12

.45

.57

92.04

0

85.82

4.67

.26

.53

91.28

D

86.65

7.77

.10

.66

95.18

E

72.95

3.20

10.70

.75

8.38

95.98

F

82. 95-

7.58.

.19

.39'

91. 11'

1 Including FeO weighed as Fe2O3.

G-L. Whitehorse sandstone from Cement oil field. Collected by Frank Reevesand described in Bull. 726, pp. 51-56, 1922. Determinations by R. C. Wells,, 

record C-213, to see if color could be related to the iron content.

G. Brick red.

H. Gray with purple cast.

I. Very light brick red.

J, K. Light straw.

L. White.

Insoluble in hot 1-1 HCL... _ ..........

Soluble in hot 1-1 HC1: 

Fe2 03 -- - - - 

MnO.__ ...- .._ .--. ....

CaO.. _-_-....-.-.._....--_-.. ....

MgO ... ....... ........ .........

Soluble in cold 1-1 HC1 in ? hours: FeaOa-. 

Percentage of total FezOs dissolved by 2- 

hour treatment.. ... . .......

Q

92.15

1.76

.02

.26

1.68

.24 

.14

.05

H

94.85

.98

.01

.38

.47

.16 

16.00

.02

I

94.89

1.02

.30

.62

.34 

33.00

J

94.81

.97

.30

.66

.31 

32.00

K

94.85

1.08

.22

.58

.29 

27.00

Trace

L

58.79'

.24

12.21

8.52-

.18- 

75.00'

.03..

OREGON

Sixteen samples of diatomite submitted by R. W. Richards. Analyses by 

E. T. Erickson, record D-82.

A. Clover Creek, sec. 11, T. 18 S., R. 42 E., Baker County.

B. Klamath Falls, sec. 12, T. 39 S., R 8 E., Klamath County.

C. Sycan River, sec. 5, T. 36 S., R. 14 E., Klamath County.

D. Sprague River, sec. 12, T. 26 S., R. 10 E., Klamath County.

E. Poe Valley, sec. 25, T. 40 S., R. 11 E., Klamath County.

F. Drewsey, sec. 34, T. 19 S., R. 36 E., Harney County.

G, H. Drewsey, sec. 14, T. 20 S., R. 36 E., Harney County.

I. Harper, sec. 14, T. 19 S., R. 41 E., Malheur County.

J. Westfall, sec. 15, T. 18 S., R. 41 E., Malheur County.

K. Harper, sec. 34, T. 19 S., R. 42 E., Malheur County.

L. Harper, sec. 34, T. 18 S., R. 41 E., Malheur County.

M. Harper, sec. 2, T. 19 S., R. 41 E., Malheur County.

N. Harper, sec. 11, T. 19 S., R. 41 E., Malheur County.

O. Harper, sec. 22, T. 19 S., R. 42 E., Malheur County.

P. Terrebonne, sec. 16, T. 14 S., R. 12 E., Jefferson County.
SANDSTONES AND CHERTS 45

SiO>.. ..............................

A\i03 - ...........................

FezOa. _ ............. __ .........

CaO............. ...................

MgO. ..............................

NajO. ..............................

KaO. ...............................

TiOj........... .....................

SOj...... ...........................

01..................................

C02 - .............................

Loss at 105° C. (24 hours) _____ .

Additional loss in Meeker burner

SiOj................................

AlaOs ~ ..........................

CaO ....... ......................

MgO...............................

Na2 0. ..............................

K»0. ...............................

TiOt.... ............................

SOz.......... .................... ...

Cl.. ................................

COa.. ..............................

Loss at 105° C. (24 hours)..........

Additional loss in Meeker burner 

flame (3 minutes) .................

A

72.50

9.93

4. 58

.60

.54

.33

.16

.45

.03

.04

.09

4.78

5.83

99.86

I

77.96

3.93

2.92

1.26

.67

.98

.16

.27

.10

.02

.15

6.22

6.16

100. 80

B

75.56

8.54

2.66

1.20

.37

1.08

.26

.64

.06

.11

3.76

5.40

99.64

J

83.82

3.74

1.99

.58

.30

.34

.20

.19

.12

.09

3.72

5.06

100. 15

C

76.00

5.90

2.03

.38

.23

.33

.15

.13

.17

.06

.20

5.20

9.18

99.96

K

74.78

6.69

.88

.65

1.44

.32

.27

.88

1.66

.13

6.48

6.56

102. 72

D

65.52

3.34

1.56

.87

.91

.42

.86

.03

.10

 04

5.20

7.40

100. 69

L

82.64

3.20

.38

04

.18

.06

.09

4.92

5.40

99.57

E

75.30

8.42

2.89

1.90

.63

.71

.32

.45

.03

.34

.10

3.80

5.67

100. 56

M

85.52

2.60

.48

.17

.28

.04

.14

.09

.14

4.72

4.44

99.66

F

84.48

3.66

1.46

.80

.18

.22

.16

.26

.06

.06

.05

4.90

4.24

100. 53

N

78.12

6.29

1.88

.96

.41

.34

.20

.33

.04

.13

4.72

6.80

100.22

G

81.68

5.93

1.20

.54

.30

.24

.10

.31

.05

.09

4.62

5.10

100. 16

0

82.84

3.18

1.14

.38

.23

1.12

.14

.18

.69

.18

.05

5.68

5.52

101. 33

H

82.78

4.61

1.77

.44

.22

.62

.24

.26

.15

.06

4.74

4.78

100. 67

P

83.18

2.6ft

1.46

.80

.35

.48

.14

.16

.10

.02

.08

6.28

4.50

100. 21

UTAH

A-R. Eighteen sandstones tested for uranium and vanadium. A to G, Crescent Creek, Henry Mountains; H and I, Park Creek, La Sal Mountains; J and 

K, Trachyte Creek, Henry Mountains; L to R, Browns Park, San Rafael Swell. 

Analyses A to F by R. C. Wells, record 2885; G to K by Chase Palmer, record 

2887; L to R by George Steiger, record 2889. No selenium except 0.01 percent 

in E and M and 0.03 percent in Q.

A. - . ..-..

B............ ............

C. ......................

D-.. - .-..-.-.....

E. ......................

F...-. ..............._

G...................._...

H.. ...............

I... .......-.......

V2 0s

2.29

.09

.24

4.65

.11

.24

(14

.07

.05

TJ

Gravimetric

0.'47

.11

.14

fU

.02

.09

Os

Electroscopic

0.38

.11

.09

.09

.03

.03

J.. ......................

K.. .....................

L.... ...................

M. ......................

N.. .....................

O.......................

P .-..-.-........__. ...

Q........................

R.-.-...... . ...

VjOs

3.59

1 04

2.90

6.69

4.02

Oft

n

iq

.20

U

Gravimetric

0.30

.43

.06

3.19

.03

Os

Electroscopic

S-V. Molybdenum-bearing sandstone from Ouray, described by F. L. Hess in 

Bull. 750, pp. 3-8, 1925. Analyses by W. T. Schaller, record C-246. 

S. Sandstone richest in soluble salts. 

T. Same after deducting insoluble. 

U. Pale-blue fibers. 

V. Same after deducting insoluble.
46 ANALYSES OF ROCKS AND MINERALS, 1914-36

Insoluble in water. ..

Mo03° ______ .

AliOs-.--. ... ... .....

FeO'.................

MnO. ...............

NiO.................

8

81.79

.70

1.13

1.62

.01

.01

T

3.83

6.18

8

00

.07

no

U

7.06

2.06

3.07

10.95

V

2.22

3.30

U 7S

MgO... 

S03-~ - .

HtO'. ...............

S

0.14

x, 9Q

9.31

100 00

T

0

7Q

90 fU

51.13

100 ' 00

u

1 Hd

9* no

50.23

100. 00

V

1.66

97 no

u fu

100.00

' Total molybdenum as MoOa. ' Total iron as FeO. 

VIRGINIA

; By difference.

Matrix of sandstone from Quantico, collected by G. F. Loughlin. 

'soluble silica" by J. G. Fairchild, record C-393. 

A. Amorphous matrix, soluble in 10 percent NaOH, 22.8. 

B. Partly crystalline matrix, soluble in 5 percent Na^COs, 3.2.

Tests of

WEST VIRGINIA

Big Injun oil sand from Clifton Oil & Gas Co., Mannington. Examined by P. G. 

Nutting. Portion soluble in acid analyzed by J. G. Fairchild, record C-965.

AljOa. 

FeO..

0.97

1.72

3.63

MgO. 

CaO..

0.42

1.15

A-B. Two samples of marble near Sylacauga, collected by T. N. Dale. Analy^ 

ses by Chase Palmer, record 3195.

A. Cream-colored. Very minute grains of pyrrhotite or pyrite.

B. Very little dolomite, quartz, pyrite, muscovite, and undetermined opaque 

specks.

C-D. Two samples of Bangor limestone from the DeBardeleben mine of the 

Alabama Fuel & Iron Co., Russellville district, Franklin County. Analyses by 

J. J. Fahey, record D-345. Sample D appears to be slightly weathered.

SiOj. .... .

AlzOs ... ... ... ...

Fe2 03.... ............

FeO...............

CaO. ...........

MgO................ 

H2 0.... .... .........

MnO.. .........

A

0.67

.16

.04

1.77

B

.52

52.53

1.53

XTn

c

6.00

1.68

.50

49 ">8

.95 

1.49

D

5.98

1.83

.41

.98 

1.50

KjO... ... .... ...

NajO..-. .... .

C02 . - .........

s. ...... ...... . ......

TiOa -

C.... ................

A

} 0.27

43.47

.02

.01

99.73

B

-------

41.89

"2" 66~

99.17

C

f 0.38

I .02

39.49

.10

100. 54

D

0.34

03

3Q 16

.08

100.24

AI<ASKA

A-L. Dolomitic rocks from the pre-Cambrian of central Alaska, collected by 

J. B. Mertie, Jr., and described in Bull. 836, pp. 369-392, 1933. Analyses by 

J. G. Fairchild, record D-31. .

SiOj 

CaO 

MgO 

Ignition.. 

A

4.74

48.70

2.93

41.21

97.58

B

27.77

20.33

12.80

30.85

91.75

C

30.39

19.78

13.03

29.61

92.81

D

37.31

8.36

6.97

19.24

71.88

E

31.06

19.17

12.88

29.34

92.15

F

26.42

21.94

14.03

32.84

95.23

G

29.30

25.88

7.49

27.55

90.22
CAKBONATE KOCKS 47

FejOs .........................-. 

CaO 

MgO.. . 

H

54.80

26.68

4.85

2.66

6.32

95.31

I

71.66

3.84

9.90

1.45

9.66

96.51

J

35.97

5.07

24.81

1.98

23.41

91.24

K

43.24

5.34

21.07

2.07

17.47

89.19

L

10.52

27.27

18.46

21.62

97.87

M-P. Four limestones from the Yukon-Tanana district, collected by Eliot 

Blackwelder. Partial analyses by A. A. Chambers, record 3092.

C&COt.. ..............................................

MgCO^........................ ........................

M

44.08

19.50

N

26.07

20.02

0

90.34

.97

P

98.16

1.22

Q-GG. Seventeen samples of marble from southeastern Alaska, Collected by 

E. F. Buchard and described in U. S. Geol. Survey Bull. 682, 1920. Analyses by 

R. K. Bailey, record 2952. The carbonates are calculated from CaO and MgO. 

respectively. In sample FF, however, the loss on ignition was only 36.82 and 

SiOj+R»08 was 9.71.

Q, R. Tokeen, Marble Island. . . S, T. One and one-half miles south of Tokeen.

U, V. West side of Orr Island.

W. North side of Heceta Island.

X, Y. Dickman Bay, Prince of Wales Island.

Z. Waterfall Bay, Dall Island.

AA. Mill Creek Lake, east of Wrangell.

BB. Head of Red Bay, Prince of Wales Island.

CC. South of Sandy Cove, Glacier Bay.

DD-FF. Admiralty Island, near Marble Cove, Chatham Strait.

GG. Basket Bay, Chichagof Island.

Mark

Q....... .................

R..- ..........

8 ... ....... 

T.......... ..............

CT. . ..........

V ... .

W... ....................

X. ......................

Y....... ...... ..........

Insoluble in 

HC1

0.01

.20

20.77

7.82

2.95

3.50

13.18

22.84

37. 32

CaCOs

99.59

81.90

78.65

91.70

95.35

95.99

84.46

74.61

58.40

MgCOa

0.94

14.93

1.87

1.21

2.04

1.40

2.85

3.25

6.61

Mark

Z......... ...............

AA..... ....... ..........

BB......................

CO.... . . 

DD. ....................

EE.... ..................

FF.. ....................

GO...... ........ ........

Insoluble in 

HC1

0.32

19.06

1.70

2.56

.91

3.61

28.19

CaCOs

99.59

53.69

96.90

96.19

81.11

95.44

59.97

63.68

MgCO.

1.03

26.10

2.59

.89

39.10

1.45

39.90

8.90

HH-KK. Four limestones collected by A. F. Buddington, described in Bull. 

783, p. 61, 1926. Analyses by J. G. Fairchild, record C-630.

CaO.. ............

MgO.. .......

COj (calculated). .... 

(Al,Fe)j03 . .......

HH

49.07

.40

38.96 

.41

II

54.22

QA

42.93

JJ

55.41

.48

44.11

KK

55.52

on

43.93

HH

10.91

99.75

II

2.79

100. 24

JJ

0.12

100. 12

KK

0.37

100. 12
15 ANALYSES OF ROCKS AND MINERALS, 1914-36

ARIZONA

A-J. Ten samples of limestone from the Grand Canyon, collected by L. F. 

Noble and described in Prof. Paper 131, pp. 39-71, 1923. Analyses by A. A. 

Chambers, record 3123. F, Bright Angel quadrangle; all others Shinumo 

quadrangle.

RaOs-- 

CaO . ...........

MgO ...........

A

2.66

5.44

9Q "U

18.26

B

23.46

2.54

48.25

C

1.52

.80

30.10

20.78

D

10. 90

2.89

27.43

17.88

E

24.41

1.83

99 Q^

15.01

F

0.47

.41

01 70

19.65

Q

0.82

.40

19 Id

19.52

H

0.48

.10

55.50

.08

I

11.15

.71

48.68

J

6.98

.56

29.98

18.68

K-M. Samples of limestone analyzed on account of their relation to the 

development of ores.

K. Limestone, closely associated with asbestos, Ash Creek mine, 0.5 mile 

west of Chrysotile, collected by J. S. Diller. Analysis by J. G. Fairchild, record 

3262.

L. Limestone from Bisbee, collected by D. F. Hewett. Analysis by J. G. 

Fairchild, record C-1038.

M. Altered limestone, same locality as L.

Insoluble ................

FeO....... ..............

MgO.... ................

CaO.....................

H2 0-.....___._... .......

C02 ...... ....... ........

K

1.00

22.80

9.40

30.00

L

1.35

.52

54.37

43.37

M

5.24

14.27

OK fi9

44.30

MnO.... ...... ..........

K

99.50

L

0.13

99.74

M

1.15

100. 58

1.10

ARKANSAS

BATESVIIIE DISTRICT

A-E. Manganiferous limestone collected by H. D. Miser. Determinations 

by Chase Palmer, record C-110.

A. Fernvale limestone 3 miles north of Batesville. MnO, 2.16.

B. Same, 6 miles northeast of Batesville. MnO, 1.91.

C. Same, 5 miles northeast of Batesville. MnO, 7.52.

D. Lower part of St. Glair limestone, 3 miles northeast of Batesville. MnO, 

1.97.

E. Red "buttons" in green Cason shale, 3 miles northeast of Batesville. BaO, 

0.66.

F-I. Four rocks associated with manganese ore (see also hausmannite) collected by H. D. Miser and described in Bull. 734, 1923. Analyses by R. C. Wells, 

record 3231. Ba, S04, and COs present but not determined.

F. Pebble-like Girvanella in St. Clair limestone.

G. Carbonate core in a manganese boulder, Fernvale limestone, Harvey mine.

H. "Button" from Cason shale, Cason mine.

I. Cason shale, Cason mine.

SiOa. ................

AljOs -

Fe ....

F

0 9Q

4.06

i cn

G

1.51

2.06

6 CA

H

2.75

5.68 i ns

I

19 1<\

8.22

4

QQ

MgO.. 

CaO. - -.

Mn .... -

F

0.87

42.80

5.94

Q

0.96

10.60

35.50

H

1.45

29.85

5.85

I

3.38

14.22

5.87

J-P. Samples of rhodochrosite from the Batesville district collected by H. D 

Miser and D. F. Hewett. Analyses by R. C. Wells, record D-169. 

J-N. From an enriched manganese-bearing lens in the Fernvale limestone. 

O, P. From the limestone itself.
CARBONATE ROCKS 49

:Soluble: 

C0j._ ....................

PsO« ... ................

FeO. .....................

MnO 

CaO..... ..............

MgO ................ ... ..

SiO2 - -, 

H2 0..... ....................

0............ ................

J

0.4

39.6

.1

.1

45.2

13.8

1.5

100.8

K

4.6

35.7

.5

.3

49.2

7.9

.6

.7

99.5

L

3.7

35.8

.5

.3

49.1

8.2

.4

.2

.6

.6

99.4

M

0.6

37.8

.5

.1

52.8

7.9

.3

.2

100.2

N

2.4

37.0

.8

.2

45.5

11.6

1.7

.3

99.5

0

0.9

42.2

.0

1.3

5.9

47.3

1.0

.2

.2

99.6

P

2.2

41.2

.1

1.0

1.8

51.2

1.0

.1

98.6

AUSTRALIA

Samples from Torres Straits. Murray Island, Australia, submitted by T. W. 

'Vaughan. Analyses by A. A. Chambers, record 3080. 

A-E. Reef samples near the water line. 

F. Reef material, 500-700 feet above sea level.

 -SiOs ... ....... ..................

>(Al,Fe) 2 08 .

 CaO..... .........................

 MgO.......-........... ...............

 .SOs-. . - ............ .

"Na+K... _ ... . 

A

44.89

.23

.35

50.80

2.69

Trace

Trace

98.96

B

44.51

.31

.30

51.54

2.58

.j'race

Trace

99.24

C

44.87

.09

.21

50.86

2.75

Trace

Trace

98.78

D

44.96

.07

.10

51.41

2.68

Trace

Trace

QQ Wtf. 09flit

E

45.24

.22

.26

49.80

3.49

Trace

Trace

99.01

F

43.86

.16

.27

55.35

.28

None

(?)

99.92

No PjOa in any.

BAHAMAS

A. Composite bottom sample from Andros Island. Analysis by A. A. Cham- 

'bers, record 3083.

B. Bottom mud submitted by T. W. Vaughan. Analysis by E. T. Erickson, 

-.record C-306.

C-F. Composite samples studied by M. I. Goldman. Partial analyses by 

J. G. Fairchild, record C-397.

.Si02 ................. ................ ..

 Soluble SiOj.... _____________

AWi,. ..................................

FeaOs -

 MgO.................... ..............

 CaO. ....................................

H2 0....... ..............................

'TiOj. .

'C0j ....... . ..................

PzOj....... __ 

S03- ................... .............. .

MnO.... .............................

SrO.. ....................................

A

0.09

| .08

2.43

51.56

Trace

44.84

99.00

B

0.22

? .21

\ .06

.66

50.19

.79

5.86

40.60

.51

Trace

.63

99.73

C

Trace

Trace

| None

2.95

51.60

Trace

D

0.10

Trace

None

2.70

51.68

Trace

E

0.10

Trace

None

2.70

51.68

Trace

F

0.13

Trace

2.46

51.78

Trace

G. Calcareous mud collected by T. W. Vaughan. Determinations of organic 

tmatter other than carbonates by E. T. Erickson, record C-287.

Total organic carbon________ ____________________________ 0.65

Nitrogen___________________________________________ .07

Phosphorus....____..___.._____________________________ .01

Stabilized organic carbon insoluble in acids.._______________________ . 19

 Stabilized organic hydrogen insoluble in acids..___________.._______ .03
50 ANALYSES OF ROCKS AND MINERALS, 1914-36

CALIFORNIA

IVANPAH QUADRANGLE

Two samples of dolomite from thin beds in Lower Cambrian quartzite, collected 

by D. F. Hewett. They weather a chocolate brown. Analyses by J. G. Fairchild,. 

record C-624.

CiO. ........ ...

MgO. ..........

FeO. ...........

A

15.55

a oo

.72

B

28.44

17 IS

3.25

MnO. ....... ...

C 0} (calculated).

A

0.18

20.25

fid

B

i (13

43 74

.28

A

14 Q9

99.12

B

6.27

inn i(k

MISCELLANEOUS ROCKS

Magnesite rock collected by R. W. Stone. Analyses by Chase Palmer, record 

3221.

A, B. Austin Creek, Sonoma County.

C. Pope Valley, Napa County.

D, E. Red Mountain, Santa Clara County.

F. Red Mountain, Stanislaus County.

G. Same, calcined.

H. Same as D, calcined.

I, J. Madrone station, Santa Clara County.

K. Sampson Peak, San Benito County. 

L. Same, calcined.

M. Chiles Valley, Napa County.

N, O. Soda Valley, Napa County.

P, Q. Pope Valley, Napa County.

R. Cedar Mountain, Santa Clara County.

S. Morgan Hill, Santa Clara County.

T. Evergreen, Santa Clara County.

U. Red Mountain, Santa Clara County.

V. Gilliam Creek, Sonoma County.

SiOj.. ....... ........

FeO. ................

CaO.................

MgO. ...............

CO;)... ...... ........

SiOj. ... ....

FeO--.... ........

CaO................

MgO. ...............

COa.... .. . .

A

15.24

1.17

1.15

40.80

41.02

99.38

L

0.18

.93

.90

46.20

51.86

100. 07

B

8.87

.88

.43

43.18

46.31

99.67

M

4.35

1.71

2.11

42.62

49.05

99.84

C

1.94

1.49

.67

45.01

50.65

99.76

N

13.90

.70

.71

40.73

44.63

100. 67

D

0.78

.23

2.06

45.90

51.68

100. 65

0

14.39

1.33

.76

39.56

43.65

99.69

E

2.70

.23

.80

46.02

50.32

100.07

P

2.26

2.11

1.52

44.10

50.18

100. 17

F

1.67

.31

1.17

45.75

50.95

99.85

Q

2.43

2.40

1.57

43.62

50.11

100. 13

Q

0.51

1.39

2.49

90.31

5.22

98.92

E

9.57

1.00

2.83

42.48

44.70

100. 58

H

0.50

1.43

4.90

83.17

11.34

100. 34

S

2.40

1.44

3.68

42.56

49.94

100. 02

I

0.65

.33

2.65

45.43

51.42

100. 48

T

12.05

2.83

1.98

38.88

44.94

100. 68

J

6.37

.35

2.88

41.55

49.18

100. 33

U

1.82

.50

1.85

45.12

50.73

100.02

K

5.65 1 1. 82'

2.34

89. 08-

1.65-

100.54

V

2.57' .89-

.80

45. 65.

50.33-

100.24-

'FejOs.

W-DD. Magnesite rock. Analyses by Chase Palmer, record 3228.

W, X. Austin Creek, Sonoma County.

Y, Z. Soda Valley, Napa County.

AA. Calcined. Sampson Peak, San Benito County.

BB. Same, crude.

CC. Red Mountain, Stanislaus County.

DD. White Queen mine, Santa Clara County.

SiOj.. ............................ ..

FeO....-........ .... ... ... ... ...

CaO...... ..................... .....

MgO........ ....................

C02 _. ..............................

W

14.72

1.35

.64

39.60

43.73

100.04

X

8.73

.97

.39

43.18

46.31

99.58

Y

12.65

.80

' .95

40.73

44.64

99.77

Z

13.88

1.49

.27

39.60

44.62

99.86

AA

5.21

1.70

2.18

89.08

1.65

99.82

BB

1.10

.72

1.17

45.64

51.20

99.83

CC

0.51

.57

2.48

90.30

5.22

99.08

DD

0.50- .20'

1.92

45. 90'

51.68-

100. 2fr-
CARBONATE BOCKS 51

EE-KK. Samples of magnesitic dolomite from the Mojave River Canyon 

between Afton and Baxter, collected by W. W. Rubey. Partial analyses by 

J. G. Fairchild, record D-325.

CaO..... .......... ............

MgO... .......................

EE

12.21

24.39

20.55

FF

7.29

7.83

35.59

GO

14.40

11.07

29.51

HH

17.46

6.57

30.92

II

26.40

14.52

19.98

JJ

16.65

4.68

33.53

KK

5.13

28.32

20.30

COLORADO

A, B. Dolomite (blue limestone) fr-om Leadville, unaltered, collected by G. F. 

Loughlin and described in Prof. Paper 148, 1927. Analysis by J. G. Fairchild, 

record C-461. A, Soluble in 1-3 HC1; B, insoluble.

SiOi...... ..... ..

AhOj.. .

FeiOj 

FeO.. -

MgO... 

CaO. ... ... .

COj... ..... 

H»O-. ..-- 

A

0.04

Ofi

.27

21.23

30.64

46.88

B

0.19 \ .»

...

HiO+.. .........

P2 08 ..........

SOs 

HsS 

MnO.. 

ZnO.. ....

Cl.._ 

F. ...... ......

A

0.18

.03

Trace

.08

None

B

...... Organic matter..

TiOj NajQ..... .......

KaO. ............

FeSj. 

A

0.26

99.67

B

} 0.11

(')

.45

i Not detected.

C. Limestone from Quarry Canyon near Manitou, collected by K. C. Heald in 

studies of oil-yielding limestones. Analysis by E. T. Erickson, record C-304.

D. Dolomite from Weber (?) formation of Mosquito Range, Lake County, 

collected by Charles H. Behre, Jr. Analysis by J. G. Fairchild, record D-163. 

The insoluble appears to be claylike material.

E. Timpas limestone, Granada. Analysis by W. C. Wheeler, record 2974.

F. Dolomitic limestone from Alma district, collected by Q. D. Singewald. 

Analysis by J. J. Fahey, record D-213.

G. Limestone from Aspen, collected by D. F. Hewett.

H. Same limestone altered. Analyses by J. G. Fairchild, record C-1038.

I. Marlstone from Green River formation in valley of Cathedral Creek, sec. 26, 

T. 3 S., R. 99 W., Rio Blanco County. Submitted by W. H. Bradley. Partial 

analysis by J. G. Fairchild, record C-1105.

8iOj.... .......................

AljOs ................. ...

FGtOt.. .......................

FeO... ....................... .

MgO........ ...............

CaO..... ....... ... ...

HaO--. . ....... ...........

TiOj... ....... .......

OOs............ ...............

PjOj.. ........ .............

SOL..........................

01.............................

MnO-... ...... . .......

SrO. ......... .................

NaaO........ ..................

BaO....... ........ ............

Less 0-CL. ........... __ ...

C

0.14

.29

.04

5.71

48.72

.04

.36

44.68

.07

.05

.02

.01

.22

100. 35

D

1.78

1.84

. 19. 85

29.83

.09

46.18

.06

.09

.28

.08

100. 08

.02

100. 06

E

4.36

} 1.88

.34

51.71

41.40

Trace

99.69

F

12.1

{:::::::::

17.1

26.7

41.8

.4

99.9

G

1.29

None

.05

64.45

42.99

.29

99.07

H

1.21

1.46

18.42

32.08

46.32

.21

99.70

I

0.78

1.75

14.38

26.05

37.29
52 ANALYSES OF ROCKS AND MINERALS, 1914-36

CUBA

Matrix from coral reef, Guantanamo Harbor, collected by T. W. Vaughan. 

Partial analysis by George Steiger, record 3213.

(Al,Fe)a03 . 0.16

MgO 

CaO-. 47.12

1.11

OOj (calculated)... - . - - 38.24

DISTRICT OF COLUMBIA

96.63

Soluble Continued.

CaO..-- -. - 36.75 

HaO-. 5.50 

HjO+... _ ... 13.68 

TiOj . . .19

Soluble Continued.

002 

P3 06 .........

8.86. 

.14

100.10

White calcareous deposit near Tenleytown, collected by N. H. Darton. Analysis by George Steiger, record D-303. Insoluble in 1-4 HCI boiling 3 minutes,. 

12.14 percent.

Insoluble.. . 12.14 

Soluble:

SiOa.___--_- -- ' 13.85

AljOs - 4.43

FejOs - 2.39

MgO. -- 2.17

i Of this soluble silica 12.35 percent went perfectly into solution with HCI; the remaining 1.50 percent was: 

deposited as sandy silica and remained with the residue; it was dissolved by boiling for 15 minutes with a. 

6 percent solution of NajCOs and evidently belonged to a silicate mineral decomposed by boiling HCI.

GEORGIA

Two samples of marble from Tate, collected by T. N. Dale. Analyses by Chase 

Palmer, record 3195.

A. Coarse calcite marble with graphitic cloud. Microscope shows very little 

quartz, graphite, and pyrrhotite.

B. High power shows very minute pink dots. Contains also hornblende,, 

quartz, and titanite.

SiOj 

AljOaFeO.. 

CaO 

A

0.14

.31

.05

55.29

B

0.05

.07

.04

55.71

MgO... 

MnO .

(K,Na)8 0..._..

COa 

A

0.25

.15

43.45

B

0.22

si

43.53

S- . ....

C... ........ ...

A

Trace

99.64

B

99. 93

HAITI

Four samples of limestone collected by J. S. Brown. Analyses by J. G. Fairchild, record C-293. 

A. Top of divide, road Port au Prince to Cape Haitien.

B. Beach near Mont^Rouis.

C. Miocene marl from valley 2 or 3 kilometers north of St. Marc.

D. Clay from Plaisance Valley.

SiOa.. .... ...

AUOa 

CaO. 

MgO- .

A

0.14

. 4U

55.60

.45

B

0.50

. M

55.12

.66

C

25.42

f 8.32

1 1 QQ

30.33

2.27

D

51.30

16.88

4.77

8.06

3.16

CO2 -. ... ...

HaO..... ..

A

43.45

99.90

B

43.18

99.56

C

23.75

6.38

98.40

D

5.09

8.32

97.58

IDAHO

Samples collected by C. P. Ross.

A-B. Travertine from Bayhorse quadrangle, southwest of Challis, Custer 

County. Analysis by J. G. Fairchild, record D-93.

C. Carbonate from open cut, Yellow Jacket mine, Casto quadrangle. Analysis 

by J. J. Fahey, record D-259. Description in United States Geological Survey 

Bulletin 854, 1935.

D. Average limestone, Casto quadrangle.

E. Contact-metamorphic limestone, Casto quadrangle. Analyses D-E by J. G. 

Fairchild, record C-927.
CARBONATE ROCKS 53

CaO 

MgO 

COj 

AhOs... -

FesOj. 

803 

A

52.90

1.43

43.31

JNone

.12

B

51.78

1.63

43.24

None

C

53. 40

.79

43.35

,.._..

D

33.44

10.59

37.82

1.50

1.72

E

15.32

8.54 (')

8

11

12.97

TiOz 

A

0.05

2.18

99.99

B

9 d7

99.12

C

O QQ

99.47

D

IS S4

.10

99.01

E

46.70

91.90

i Undetermined.

INDIANA

Limestone, Bedford. Special analysis of part insoluble in cold 1-5 hydrochloric acid, by George Steiger, record C-1076.

SiOj.

MgO. 

CaO

83.89

5.84

6.83

.64

1.06

NasOK2 0.. 

TiOs..

0.41

1.73

.30

100.70

IOWA

Dolomitic limestone near Burlington, of Kinderhook (Mississippian) age, collected by J. S. Williams. Analysis by E. T. Erickson, record D-204.

Insoluble. . 3.16

RjOs -. 1.08

MgCOB-.. - - . 

CaCOa .... 67.71

28.26

KANSAS

100.21

Five samples of limestone, Syracuse quadrangle. Analyses by W. C. Wheeler, 

record 2878.

A. Eighteen miles southwest of Syracuse. 

B. Northwest of Kendall. 

C. Southeast of Syracuse. 

D. Well southwest of Syracuse. 

E. Quarry at Syracuse.

Insoluble.....

faO

MgO 

A

1.79 

52.99

.40

B

3.61

CO CO

.32

C

18.56 

42.75

.39

D

2.72

.49

.E

3.18 

52.26

.47

Ignition ...

A

43.39

98.57

B

42.04

98.55

C

35.18

96.88

D

42.32

Q7 70

E

42.35

QS 9R

KENTUCKY

A. Limestone from locality about 50 miles south of Louisville, submitted by 

W. E. Boykin. Analysis by Charles Milton, record D-171.

B. Oil sand (composite sample), Irving oil field. Partial analysis by George 

Steiger, record 3135.

CaO ... ... ... ..

MeO

C02 .................. ...

H2 0- ..........................

HaO+. .........................

A

55.60

.30

43.61

.13

B

22.3

14.3

34.3

AhOs-..- - ~

FeiOz... ..........................

A

} 0.11

.80

100. 55

B

24.7

98.0

MARYLAND

Dolomite from Beaver Dam quarries, Cockeysville, U. S. Nat. Museum 

76037. Analysis by R. C. Wells, record 3029.

CaO .. 30.88

MgO . 21.28

FeO . 17

SiOj.......--.. ......................... .23

(Al,Fe)iOj. ... 0. 22

CDs (calculated).______............... 47.59

100. 37
54 ANALYSES OF ROCKS AND MINERALS, 1914-36

MASSACHUSETTS

Eleven samples of dolomite collected and described by T. N. Dale in Bull. 744, 

1923. Analyses by J. G. Fairchild, record 3238. 

A. Briggs quarry, Sheffield. 

B. Charles Reed place, Great Barrington. 

C. Miller quarry, West Stockbridge. 

D. Two miles southwest of West Stockbridge. 

E. Knoll 0.5 mile southeast of marble quarry, West Stockbridge. 

F. Truesdell quarry, north end of West Stockbridge village. 

G. Southwest foot of Rattlesnake Hill, Stockbridge. 

H. Hutchinson quarry, Lenox.

I. East of New England Lime Co.'s Renfrew quarry, Adams. 

J. Near Upton's, northwest of Adams. 

K. Hilltop near Dean's mill, west of Adams.

BiOi.. .......... ......

AljOa . 

FeaOs ----- 

FeO. . .............

MgO. ...._.. - ... .

CaO..... ......... .

NajO 

KsO. - 

COj .-... . - .

PsOs .

TiOj.... ..........

A

2.40

1.38

.73

17.50

31.86

} 1.22

44.56

99.65

B

U.78

.12

.16

20.17

31.45

\

46.26

99.94

0

1.83

.60

Trace

.31

12.99

39.53

.08

.30

44.48

100. 12

D

12.30

Trace

.24

18.75

32.96

45.78

100.03

E

11.03

2.23

Trace

.21

18.18

27.08

64

40.38

99.75

F

16.22

.15

.06

.41

17.34

32.28

43.66

100. 12

G

1.58

.48

Trace

.18

20.99

30.52

.17

46.50

.03

100. 45

H

5.02

1.49

.48

.80

18.20

30.02

.69

42.66

.06

.05

99.47

I

0.68

.07

.05

.20

20.75

31.30

.05

46.86

99.96

J

10.78

.06

Trace

.25

20.46

32.07

46.64

100. 26

K

13.63

.10

Trace

.28

20.33.

30.42

45.46

100.22

i Insoluble in acid, other constituents soluble in acid.

MONTANA

A. Madison limestone (Mississippian) from north end of Big Horn Canyon, 

south of Hardin. Collected by K. C. Heald in studies of oil-bearing limestones. 

Analysis by E. T. Erickson, record C-304.

B. Limestone from Capitol Rock, T. 3 S., R. 62 E. Analysis by W. C. Wheeler, 

record 3006.

SiOa and insoluble..- .. .

AlzOs. ~ 

TejOj ... 

FeO...... ....

MgO-. 

CaO. 

A

0.43

.42

.04

1Q Q7

31.72

B

28.90

} 4.00

1.26

35. 79

HsO-.._ ..

andHzO+. .

TiOs ... ...

COs ..

PjOt -

A

0.02

.34

.01

46.91

Trace

B

30.02

SOs - 

S. . .............. c\.. .............

MnO. ...........

SrO ... ... ...

A

0.03

.06

Trace

.09

100. 00

B

 ...

99.97

NEVADA

Limestone and dolomite collected by D. F. Hewett in the Goodsprings quadrangle and described in Prof. Paper 162, 1931. Analyses by J. G. Fairchild; 

Aa-U, record C-547; V, record C-473.

Aa-Fa. Anchor limestone member of Monte Cristo limestone.

Ab-Fb. Dolomitized limestone about 6 feet from contact of corresponding 

jsamples Aa-Fa.

Ga-La. Bird Spring formation.

Gb-Lb. Same bed dolomitized.

M. Dolomitized limestone of Monte Cristo limestone.

N-U. Limestone, dolomite, and altered products.

V. Dolomite partly altered by Tertiary intrusives into brucite.
CARBONATE ROCKS 55

CaO. .............

MgO ...........

CO........ .... ..... .

FejOi ....... ..... .

AliOi .............

CaO--.--. --.-.

MgO-.--....-.-..

COj .. ...

FeJOs.. 

Al.Oj ...... .....

Insoluble.. _ ......

CaO .............

MgO--- . ......

COi.... ...... ..... .

FejOs -- -

Insoluble _ ... ....

CaO....... ........

MgO ..... ...... .

COz.. ...........

AhOj.. ............

Insoluble, _ ... _ . 

Organic matter + 

water... _ .. _ .

Kb

29.24 

17.47 

41.90

10.85

99.56

Aa

55.32 

.25 

43.20 

None 

None

98.77

Db

31.44 

21.31 

47.07 

None 

None

99.82

Ha

55.24 

.22 

43.80 

None 

None

99.26

La

55.20 

Trace 

42.80

None

98.00

CaO. ...... ........

MgO. ..........

COj ...........

FeaOs-- ....... .... .

AljOa-.-.. ......

HiO- ...........

Lb

32.72 

18. 73 

45.27

None

96.72

U

49.02 

.15 

38. 5C 

1.57

.21

Ab

31.40 

21.11 

46.40 

None 

None

98.91

Ea

55. 68 

.10 

43.82 

None 

None

99.60

Hb

28.76 

20.12 

44.44 

None 

None 

7 32

100. 64

M

30.70 

21.63 

47.13

Trace

99.46

Ba

55.18 

Trace 

43.42 

None 

None

98.60

Eb

32.32 

20.58 

47.40 

None 

None

100. 30

la

55.66 

Trace 

43.60 

None 

None

99. 2R

N Oa

36. 88 31. 00 

13. 48 21. 55 

43. 57 47. 13

.20 Trace 

5. 80 .20

99. 93 99. 88

V

31.80 

22.22 

43.48

.17

Bb

31.98 

20.22 

46.60 

None 

None

98.80

Fa

52.88 

2.84 

. 44.20

} Trace

99.92

Ib

32.56 

19.68 

46.63 

None 

None

98.87

Ob.

31. 2S 

20. 58 

45.80 

( .38 

Trace 

1.40

99.44

Ca

55.28 

Trace 

43.20 

None 

, None

98.48

Fb

32.16 

20.66 

47.45

Trace

100. 27

Ja

52. 92 

Trace 

40.99 

None 

None 

5.91

i 99. 82

P Q

55.40 31.24 

. 25 18. 49 

43. 72 43. 95

| None None 

....... 6.03

99. 37 99. 71

Cb

31.52 

21.00 

47. 13 

None 

None

99.65

Oa

54.76 

Trace 

42.82

.10 

2. 05

'99.. 73

Jb "

29.90 

20.46 

44.65 

None 

None 

5.42

100.43

R

36.20 

22.28 

34.77

Trace 

6.59

99.84

Da

54.98 

.25 

43.80 

None 

None

99.03

Gb

29.28 

19.77 

43.70

Trace 

6.00

. 98.75

Ka

 48. 14 

.30 

38.71 

None 

None 

12.14

99.29

S T

52.72 53.62 

.88 .20 

42. 46 42. 10

Trace . 48

96.08*<97.59

U V

H2 0+-

Insolub 

Organic

e

matter + water- . ...

«<

..... M.99

3.08 «.10 

1.06 ........

)8. 59 99. 76

' Trace of sulphide present. 0.3 percent SOa in Qa. Samples contain a small quantity of organic matter.

' Not determined.

» Organic matter is not more than a trace.

4 1.19 MnO is insoluble in T, 1.35 MnO in U, available 0 not determined.

' Loss on ignition less COj and HiO-.

o Approximate.

W-Z. Four specimens of a magnesite series from southern Nevada overlying 

Overtoil conglomerate 4 miles west of Overtoil, Clark Countv. Analyses bv 

J. G. Fairchild, record C-443.

W. Lower of series.

X. 20 feet higher.

Y. Lower bed of lower.

Z. Middle bed of lower.

71413 37 5
56 ANALYSES OF ROCKS AND MINERALS, 1914-36

Soluble in 1-3 HC1: 

Si02 _... ... ......

AhOa 

FeO. .- ...

CaO- . ..

MgO.. ....

C02 .-- -

P2 0S -.-. ........

W

0.99

Trace

. .41

1.03

24.37

15.27

34.40 '.05

X

0.92

Trace

.50

.73

20.17

12.35

28.10 «.10

Y

0.63 (')

'1.63 (')

22.52

21.60

34.74

Trace

Z

0.32 (')

a. 47

(')

6.30

37.25

41.36

Insoluble: 

SiOa. ............

A12 03 - .....

Fe2 O3~. . ..

MgO. ...........

CaO.............

K2 0<>-. ... .......

Na2 0.... ........

HnO (ignition)'...

W

15.78

2.07

.77

.30

2.01

.22

1.96

99.63

X

24.82

4.43

.53

.52

3.44

.53

2.38

99.52

Y

11.63

<1.31 (')

.09

}<-49

5.10

99.74

Z

7.66 <.83

(')

.12

.36

4.38

99.05

1 Undetermined.

2 Includes a little AlaOa and total iron. 

8 Approximate. 

* Includes a little FezOs. 

»Includes any soluble alkali.

« The unusual quantity of water in Y and Z comes chiefly from the soluble portion and points to the 

presence of a hydrated compound of magnesium.

AA, BB. Rocks from Magnesite Wash, 5 miles southwest of Overton, collected 

by W. W. Rubey.

AA. Magnesitic rock. Analysis by J. G. Fairchild> record D-304.

BB. Associated claylike material. Analysis by E. T. Erickson, record D-307.

CC. Dolomite from Shafter, collected by D. F. Hewett. Analysis by J. G. 

Fairchild, record C-1038.

Insoluble in HCL. ......

Soluble:

CaO... ............ -

MgO................

C02 . ................

H2 0- ............

AA

8.22

16.55

29.15

42.35

44.47

1.01

BB

42.26

2.38

21.76

3.61

13.70

13.24

CC

6.58

28.99

1 $2 ^9

43.60

FeO... ..............

MnO.... ............

AA BB CC

None

1.27

98.76

.72

DD-GG. Samples collected by Eugene Callaghan. Analyses DD, EE, by 

Charles Milton, record D-292, FF, GG, by E. T. Erickson, record D-157.

DD. Magnesitic rock from Callville Wash.

EE. Magnesite from Horse Spring formation, Overton.

FF. Magnesite from hillside east of upper brucite deposit, Paradise Range, 

Mineral County.

GG. Dolomite 75 feet east of FF.

HH. Dolomitic magnesite from Currant district, southwest of Ely. Submitted 

by Eugene Callaghan and W. W. Rubey. Analysis by Charles Milton, record 

D-426.

Si02 .. .....

A12 03 --.. .

Fe2 03---.---

FeO ..-_.-

MgO-.......

CaO.........

Na2 0. .......

K2 0 .......

HzO-......-.

H2 0+.......

Ti02 .........

DD

12.19

.38

.09

20.30

24.15

.28

.29

3

CC

2.24

.01

EE

11.65

1.18

.25

37.66

4.87

.31

.32

911

1.82

.01

FF

0.43

.13

.23

.22

45.35

2.20

-KJ-ftTlA

.11

Trace

GG

0.44

.15

.14

.09

21.56

30.64

.12

Trace

HH

15.61

} 2.51

29.53

15.71

------

C02 .... ......

P2 05 .. ...... _

SOj.. ........

s..... ........

MnO........

B2 03 ... 

C.. ..........

DD

32.47

3.26

.17

.18

99.56

EE

40.09

.12

.22

100. 65

FF

51.03

.03

.03

.02

99.78

GG

47.05 :oi

.01

.02

100.23

HH

'36.54

100.10

1 Ignition.

II, JJ. Two limestones from the Yerington district, collected and described by 

Adolph Knopf in Prof. Paper 114, 1918. Analyses by W. C. Wheeler, record 

3052.

II. One inch from pyroxene-andradite-chalcopyrite ore body of the Mason 

Valley mine.

JJ. South end of ore zone.
CARBONATE ROCKS 57

KK. Limestone from Ely, collected by D. F. Bewett.

LL. Altered limestone KK. Analyses KK, LL by J. G. Fairchild, record 

C-1038.

Si02 .. ..............

AkOs- .............

FejOa (totftl Fe)

FeO. ...............

MgO. .............. 

CaO................

II

1.80

.14

.17

3.17 

51.63

JJ

3.04

1.39

fid

.84 

52.12

KK

9.24

None

4.30 

45.57

LL

8.96

None

19.18 

27.82

COz (calculated)....

MnO. ..............

II

43.98

100.89

JJ

41.82

99.85

KK

40.57

.17

99.85

LL

43.24

.63

99.83

2.26

NEW MEXICO

A-E. Limestones from the red beds. Analysis of portion soluble in hydrochloric acid by Chase Palmer, record 3170. 

A. Chupadera formation, northwest of Queen. g 

B. Fusselman limestone, San Andres Canyon. 

C. Tertiary, 1 mile east of Helen.

D. Chupadera formation, 10 miles north of Prairie Springs. 

E. Between gypsum beds 10 miles southeast of Hope.

CaCOs...-- ................ ......... ..

MgC03 ..

A

54.25

38.70

B

51.80

38.00

C

89.30

Trace

D

52. 20

38.22

E

54.41

36.12

F-J. Dolomite from Government test hole 18, Carlsbad formation, collected 

by W. B. Lang. Analyses by L. T. .Richardson, record D-22.

F, Surface (?); G, 177 feet;" H, 1,136 feet; I, 1,160 feet; J, 1,180 feet.

K. Dolomitic Permian limestone from 20 miles west of Carlsbad, collected by 

W. B. Lang. Partial analysis by L. T. Richardson, record D-42.

CaO. ....................................

MgO.....................................

Loss on ignition .........................

R2 03 ....... ..........................

Insoluble in 1-5 HC1. ....................

S0j_........_..._..........._....._......

NaCl. ...................................

F

30.87

20.18

46.65

.46

1.70

.05

.OS

99.99

G

27.32

20.30

43.03

1.01

7.58

.21

149

99.94

H

30.24

19.19

45.57

.29

.58

3.20

1.02

100. 09

I

27.33

20.03

42.75

1.14

7.94

.44

.41

100. 04

J

28.34

20.52

44.07

.75

5.26

.23

.71

99.88

K

30.05

20.47

2.35

L. Black caliche, common on the High Plains, from Roosevelt County, T. 6 S.. 

R. 38 E., collected by W. B. Lang. Analysis by E. P. Henderson, record C-1028 

Insoluble quartz grains and clay. Color caused by organic matter soluble in 

chloroform.

Insoluble....__................................._............................_._ 9.56

CaCOs - ..- .-.-...-. .-. .- . - -. 88.63

CaSO«.2H2 0........................................................................... .88

R2 03 .................................................. --.- ...... .70

NEW YORK

9.77

A. Marl, Montezuma Marsh. Partial analysis by Chase Palmer, record 3235. 

B. Dolomite from Oregon, Putnam County. Partial analysis by A. A. Chambers, record 3103.

MgO..... ....................

CaO.........................

COj ........ ...............

A

1.21

45.75

35.32

B

20.41

on QO

45.78

PjOs... ...... ................

A

None

82.28

B

96.01
58 ANALYSES OF ROCKS AND MINERALS, 1914-36

OHIO

Four samples of limestone from the Woodsfield and Summerfield quadrangles, 

collected by D. D. Condit. Analyses by A. A. Chambers, record 3075. 

A. Calcareous clay, Alledonia station, Belmont County. 

B. Lower Pittsburgh limestone, Bailey's Mills, Belmont County. 

C. Same, Chaseville, Noble County. 

D. Ames limestone, Senecaville, Guernsey County.

ston.. ...... ........

AhOa+FeaOs-------

MgO. ..............

A

25.70

14.38

10.27

B

2.83

1.05

.42

C

1.48

1.10

.20

D

12.72

4.20

.10

CaO.... ............

PaOj................

A

17.81

B

52.78

C

53.38

D

44.32

.48

A-E. Five limestones from Foraker quadrangle, studied by K. C. Heald. 

Analyses by Chase Palmer, record 3102. No MgO, S, or S03 .

CaO ............... .. ..................

COt.. ........ ................ ............

Fe2 03 (total Fe)....... ......... ... .

A

1.92

54.04

41.26

.46

97.68

B

4.62

52.88

40.44

.99

98.93

C

3.51

54.08

41.54

.33

99.46

D

8.83

48.94

36.41

2.31

96.49

E

10. 28

45.81

34.74

5.72

96.55

F, G. Two dolomites near Paden, collected by A. E. Fath. Analyses by W. C. 

Wheeler, record 3023. F, Gray; G, red.

H-K. Four samples of limestone collected by D. F. Hewett. Determinations 

of acid-soluble matter by J. G. Fairchild, record 3276.

H. From a deposit on Moseley Creek near Bromide, Johnson County, SW% 

sec. 28, T. 1 S., R. 8 E., in a vein with manganese minerals.

I. Hunton limestone 2 feet from vein.

J. Same 15 feet from vein.

K. Viola limestone several feet from a similar vein, SWJ4 sec. 13, T. 2 S., R. 7 E

AhOa-.- 

FeO. . ... ... ... ... ... ...

MgO-.. -

CaO...... ...... . ............ ...

MnO..... ...... ...... ..... ......

F

12.22

.94

1.00

3.60

14.98

26.67

.57

40.18

100. 16

O

12.17

.07

4.08

.75

17.76

25.15

.80

40.06

100. 84

ET

14.35

29.02

6.42

44.89

98.70

I

12.15

29.02

9.08

43.79

97.49

J

0.28

.30

40.56

.39

32.30

73.83

K

A. A9

6.02

41.82

.60

42.25

94.71

OREGON

A-J. Samples of limestone collected by R. W. Richards and B. N. Moore. 

Analyses by J. G. Fairchild, record D-63.

A. Sec. 3, T. 12 S.,'R. 44 E., Sisley Creek, Baker County. 

B. Sec. 4, T. 12 S., R. 43 E., Nelson, Baker County. 

C. Sec. 2, T. 2 S., R. 44 E., Black Line quarry, Wallowa County. 

D. Sec. 15, T. 23 S., R. 48 E., Imnaha River, Wallowa County. 

E. Sec. 10, T. 4 S., R. 44 E., Hurricane Creek, Wallowa County. 

F. Sec. 5, T. 2 S., R. 43 E., Lostine Creek, Wallowa County. 

G. Sec. 21, T. 7 S., R. 44 E., Martins Bridge, Baker County. 

H. Sec. 28, T. 11 S., R. 45 E., Comas Creek, Baker County. 

I. Sec. 7, T. 18 S., R. 25 E., Grindstone Creek, Crook County. 

J. Sec. 18, T. 19 S., R. 42 E., Jackass Creek, Grant County.
CARBONATE ROCKS 59

Si02- . ------

AUOi

FesOa ~ .........

FeO ............

MpO.. -_._....._.

CaO...............

NasO.... ..........

KsO-.-- ...... ..

H?0.. .............

TiOz.. ............

COz... ....... ... ..

PsOj. ... ........

S03 ...... ..........

MnO. ... ...... .

SrO 1 -. ............

Li 2 0 ...... ......

FeS!.... ........

Organic matter .

Specific gravity .

A

U 91

.15

.17

CO

49 82

.21

Trnnp

TVnpA

38.39

.05

Trace

.02

TVflpp

Trace

100. 45

2.70

B

44.86

.77

.60

.79

90 79

.10

.25

.10

TVnpp

23.10

.10

.10

None'

Trace

Trace

100.39

2.68

C

1.17

.17

.12

1.23

53. 15

.08

.08

.10

42.05

.40

1.75

100. 30

2.61

D

1.12

.20

.10

.36

54.44

.19

.20

43.19

.05

None

.07

99.92

2.68

E

0.12

OQ

55.62

.11

TVprtn

.10

43.67

None?

None

99.90

2.71

F

0.92

.34

Undet.

19

M in

.10

43.18

"WrmP?

.24

Trace

99.80

2.72

O

10.92

3.21

1.63

.25

.85

45.36

22

.45

.96

.20

36. 24

.07

.03

.14

.14

100. 67

2.61

H

'TVflpfi

V>

55. 65

43.93

Undet.

None

100. 10

2.73

I

9 40

.62

.48

64

49.12

.15

Trace

.60

Trace

38.83

Trace

TYopp

Trace

99.84

2.68

J

2.08

.40

.34

.16

54.05

.17

.31

42.50

.10

Trace

100. 11

2.73

1 Mere traces not determined.

K, L. Two samples of limestone, Sumpter quadrangle, collected by J. T. 

Pardee. Analyses by W. C. Wheeler, record 3055. K, Marble Creek; L, Marble Point.

M. Dolomite from Wallowa Mountains, T. 6 S., R. 46 E., collected by C. P. 

Ross. Analysis by J. G. Fairchild, record C-332.

SiOj . ...............

AlaOs ..................

FezOs (total Fe).. ........

MgO.....................

K

0.71

.05

.12

1.55

L

0.07

.03

.08

.22

M

20.52

CaO ....... .........

COj. 

K

53.76

43.87

100. 06

L

55.76

43.99

100. 15

M

32.84

46.60

99.96

PANAMA

Pleistocene deposit on Mount Hope, collected by T. W. Vaughan. 

analysis by George Steiger, record 3213.

 . . . CaO... ...................................................... ......... .............. 21.48

MsO --- .-- -.--- .-----------.-.-- - -..---...- .-. .- . .35

C Oj (calculated).. ........ .. ............ .......... ...... .. .. 17.27

PENNSYLVANIA

Partial

0.27

39.37

A-G. Limestone from Somerset quadrangle. Analyses by W. C. Wheeler, 

record 2888.

A. Laurel Hill, 6 miles northeast of Ligonier.

B. Laurel Hill.

C. Adams mine, 5 miles northeast of Somerset.

D. 3 miles southeast of Ligonier.

E. \% miles southwest of Lavansville.

F. 4 miles north of Boswell.

G. 2y2 miles north of Boswell.

H. Limestone near Greensburg. Analysis by R. C. Wells, record D-408.

Insoluble... _ ..... _ .... ___ ..

(Al,Fe) 8 03 .......... ........... ..

CaO................................

MgO...............................

MnO. ..............................

Ignition.. __ .. _____ __ __ ..

A

22.22

12.32

33.35

1.12

.33

29.39

98.73

B

47.60

2.58

27.08

.42

22.41

100. 09

C

3.61

2.03

50.95

.97

42.35

99.91

D

3.48

2.44

51.30

.69

41.92

99.83

E

4.21

2.72

49.72

1.23

41.64

99.52

F

3.37

2.05

51.76

.69

42.04

99.91

O

3.43

2.46

45.60

5.30

43.07

99.86

H

10.57

2.54

40.67

6.42

39.66

99.86
60 ANALYSES OF ROCKS AND MINERALS, 1914-36

SOUTH DAKOTA

Carbonates from the gold-bearing schists of the Homestake mine at Lead, 

collected by Sidney Paige and described in Bull. 765, 1924. Analyses by J. G. 

Fairchild, record C-211.

A. From De Smet open cut. Quartz, green mica, siderite.'

B. From 300-foot level of Old Abe shaft. Chlorite, mica, amphibole, quartz, 

and carbonates.

C. From 400-foot level, Caledonia ore body. Chlorite in a groundmass of 

carbonates and quartz.

D. From 600-foot level near Deadwood Terra shaft.

E. From Incline ore body. Cummingtonite, quartz, and siderite.

F-. From 500-foot level near Deadwood Terra shaft. Quartz, carbonate, and 

carbonaceous matter.

Acid-soluble portion 

CaO. ....................................

MgO. ...................................

FeO+FejOs ... ..... ........ .... .

CO,.... ............. .....................

MnO-.__ ................................

Carbonates 

CaCOz........... ........................

M?.CO3 .. ................................

FeCO}......... .......................

MnCOs.. . .-..-..-.--..--.-.-.......

Fe203aslimonite_- ......................

A

2.6

23.9

7.2

5.4

11.6

16.0

B

3.1

4.6

31.5

9.2

5.5

9.6

4.7

28.3

Ci

0.4

1.2

11.0

6.0

.7

2.5

11.6

3.1

D>

12.7

7.7

6.4

22.7

2.0

22.7

16.1

9.3

2.1

None

E

2.5

20.2

7.8

5.2

13.4

11.0

F

11.7

4.8

12.4

20.5

20.9

10.0

16.1

1.3

1 Contains FeSz.

2 Contains MnCOa, some FeSz.

TENNESSEE

A-C. Samples of marble. A, McMullen quarry, Knoxville; B, Friendsville; 

C, Luttrell. Analyses by R. C. Wells, record 3013.

D, E. Marble from near Knoxville, fine and coarse material, divided by a 

suture, submitted by A. C. Lawson. Tests by R. C. Wells, record C-504, to 

detect any possible chemical differences for the textures. D, Fine-grained; 

E, coarse-grained. The fine-grained part also showed more organic matter.

CaO. ........

MgO--... .

MnO._ ......

Fe:0s- .

AhOs- .

A

43.80

55.70

.02

.01

.17

.03

B

43.66

55.37

1 3

.02

.21

.15

C

43.38

55.37

00

.01

.46

.48

D

0.26

\ 25 / **

E

O ne

.23

SiOj.. .......

S... ......

A

0.05

.03

99.81

B

0.16

.01

99.71

C

0.47

.01

100. 41

D

0.40

E

0,07

TEXAS

A. Limestone from a deep well near Mexia, collected by 0. B. Hopkins. Analysis by R. M. Kamrn, record 3151.

B. Limestone near Palestine, Anderson County, Austin chalk, collected by 

E. B. Eckel.

C. Georgetown limestone, same locality, collected by E. B. Eckel, Analyses 

B, C by J. G. Fairchild, record D-352.

SiOj-.-.. ........ ....... ..

AlaOs ........- ......

Fe203~~ __ ............

FeO........ ........ ......

MgO......... ............

CaO......................

NajO ..-. .. ......

K2 0.......... ............

A

6.94

) l.«2(

.09

50.24

B

5.55

1.18

} .89

.02

50.74

1 /'**29 

C

1.16

.45

. 66

.02

53.96

.27

H2 0 ........ . .

TiOt.. ...................

COt.... ..................

PaOs ...... .... 

S... ..................... .

MnO ...-.. 

Carbonaceous residue.. ...

A

0.60

37.98

1.34

. 99.11

B

1.26

.07

39.52

.08

.02

99.62

C

0.30

.02

42.60

.01

.05

99.50
CAEBONATE ROCKS 61

UTAH

Six specimens from Ophir district showing the alteration of a limestone to a 

lead-zinc ore, collected by James Gilluly and described in Prof. Paper 173, 1932. 

Analyses by J. G. Fairchild, record C-1031.

A. Unaltered limestone.

B. Slightly altered limestone containing some quartz and muscovite.

C. Same with orthoclase and chlorite.

D. Same with additional epidote.

E. Ore in hornfels.

F. Dolomite replacing limestone, Ophir Hill Consolidated mine.

SiOj.............. ........................

AljOj.. ..................................

FejOj...... ..............................

FeO......................................

MgO..... ........... ....................

CaO. .............. ....... . ......

NajO. ...................................

K2 0....... ...... .

HjO-...__.._... .

H8 0+................ ....................

TiOj... ..................................

C02 ...................................

Pj05 .......... ...........................

01................... ....................

F. ................. . ..................

S .. ............... . . ....... . ......

MnO.. ............. . ..................

FeSj.. ...................................

PbS...... ................................

ZnS.... ..................................

ZnO. ............... ... ....... ........

Cu............... ........................

Ag... ....................................

Less 0 = S or F2 . __ ............... _ ..

Specific gravity: 

Particles. ___ . .....................

Lump.. _ ....... ....... __ ....

A

1.05

1.20

.38

1.96

4.31

48.18

19

.05

.05

41.66

.03

.03

.05

.25

.37

99.69

2,760

2,760

B

22.67

4.96

.97

2.73

2.17

35.55

Trace

1 <;Q

1.42

.25

27.30

.26

.02

None

.56

.10

Trace?

100. 55 

.28

100. 27

2,782

2,758

C

32.73

11.65

1.19

2.73

4.16

24.57

Trace

3 Q9

.14

.70

.50

17.12

.12

.11

None

.33

.10

None

100. 01

.17

99.84

2,762

2,758

D

37.08

11.14

1.35

1.42

1.92

21.80

.15

7 (\n

.06

.80

.50

14.75

.25

.03

None

.17

.20

1.50

None

100. 12 

.08

100. 04

2,724

2,716

E

19.22

7.60

.96

1.80

2.26

2.47

.59

3

CQ

1.62

.20

1.99

.35

Trace

.25

.80

.35

26.39

14.37

15.07

.40

Trace?

100. 51 

.32

100. 19

3,841

3,591

F

3.97

1.56

2.12

16. 28

30.16

.10

oo

.02

.16

None

42.48

.03

Trace

.75

.03

.95

1.57

None

None

None

 Trace?

100. 37 

.51

99.86

2,854

2,710

VIRGINIA

Six samples of limestone collected by J. B. Eby. Analyses by J. G. Fairchild, 

record C-206.

A. Weathered fragments of Ordovician limestone near top of exposure on north 

side of Wallen Ridge, 2 miles west of Wise-Lee county line.

B. Fragments of Ordovician limestone in place, near middle of exposure on 

north side of Wallen Ridge, 2 miles west of Wise-Lee county line.

C, D. Fragments from Helderberg limestone in place from exposure on old 

road one-eighth mile east of Big Stone Gap high school.

E. Crushed limestone screenings from stone crusher, Simpson & Crawford 

quarry.

F. Fragments taken from quarry cars hauling stone to crusher, same quarry 

as E.

(Fe.ADaCh- ------ ........... .-....... .

CaO.... ............ ....................

MgO.. ..................................

COj ...................................

A

6.94

.80

50.74

.49

40.42

99.39

B

5.02

.46

51.64

l.<24

41.93

100. 29

C

2.80

.54

41.34

10.79

44.25

99.72

D

2.02

.08

49.34

4.61

43.78

99.81

E

6.04

.64

50.00

2.19

41.69

100. 56

F

9.04

1.34

46.00

3.39

39.85

99.62
62 ANALYSES OF ROCKS AND MINERALS, 1914-36

G. Dolomitic limestone associated with gypsum at North Holston mine, 

Smyth County. Analysis by J. G. Fairchild, record C-929. CaC03 , 55.7: 

MgC03 , 44.3.

H. Black limestone from quarry of Rockingham Marble Corporation, Harrisonburg, submitted by G. F. Loughlin. Analysis by Charles Milton, record D-247.

Soluble in dilute HC1: 

CaO..............

MgO..............

SiOz__ ..........

Insoluble in dilute HC1: 

FeSz(=0.61Fea(>3) 

SiOz................

AhOa, etc....._...

Ignition loss.................................................................... (40.89)

COz (calculated)...-......-...........-.........-....-..................... 40.50

HzO (calculated)-..-.-........-...............-....-.-..-.....-........-. .08

Pyrite correction ( ).._____________._____.__________ .31

40.58

WASHINGTON

Nine samples of magnesite collected by R. W. Stone. 

Palmer, A-G, record 3220; H, I, record 3228. 

A. 12 miles west of Valley. 

B, C. 18 miles west of Springdale. 

D, E. Alien quarry, Valley. 

F, G. Chewelah. 

H. Valley. 

I. Chewelah.

Analyses by Chase

SiOi.. .....................

FeO. ......................

CaO.......... .............

MgO.......................

COz... .....................

A

4.27

.78

1.07

45.02

49.51

100. 65

B

4.83

.85

7.39

38.41

47.81

99.29

C

5.60

.88

6.88

40.90

46. 03

100.29

D

0.46

1.01

.31

46.23

50.32

98.33

E

1.20

'2.36

.92

90.59

5.23

100. 30

F

0.64

.85

.81

47.27

50.31

99.88

G

5.56

i 1.74

2.31

74.39

15.95

99.95

H

5.33

1.15

.35

43.52

47.91

1.81

100. 07

I

1.85

1.00

1.74

45.20

49.70

99.49

1 FeaOs.

WEST VIRGINIA

Travertine collected by Marshall Howe from Furnace Creek, 2 miles above 

Harpers Ferry. Partial analysis by E. T. Erickson, record D-49. Described 

in Prof. Paper 170, pp. 61-62,1932. * FeO, 0.17; MnO, 0.03; MgO, 0.64.

WYOMING

A. Minnekahta limestone (Permian?) from Nichols Canyon, half a mile 

north of Sundance, Crook County. Collected by K. C. Heald in studies of 

oil-bearing limestones. Analysis by E. T. Erickson, record C--304.

B. Dolomite at base of Spearfish formation, northern Black Hills, collected 

by W. W. Rubey. Analysis by J. G. Fairchild, record C-941.

SiOz...... ... ....

AlaOs-- -

FeO. .......... ..

MgO............

CaO. ............

HzO-. ..........

A

0.89

.58

.02

55.01

.04

B

OA A A

31.28

TiOz ..........

COz.. ....... ....

PzOe -° 

SOj.... ..........

A

0.15

.01

43. 30

Trace

.08

B

45.68

.71

Cl. ...... ........

MnO...... 

SrO-.. .......

A

0.03

Trace

.07

100. 18

B

98.13
ANALYSES OF ROCKS AND MINERALS, 1914-36 63

ANALYSES OF SLATES AND SHALES

ALABAMA

A. Shale from Chilton County. Determination of carbonaceous matter by 

R. M. Kamm, record 3150, gave C, not graphite, 13.8 percent.

B. Shale near Erin, studied by David White. Analysis by George Steiger, 

record 2978, showed loss on ignition 6.52 percent; carbon, insoluble, and nonvolatile, 5.03 percent.

CALIFORNIA

A-C. Three samples of shale collected by H. W. Hoots from the Modelo 

formation of the Santa Monica Mountains. Analyses by J. G. Fairchild, record 

C-1007.

A. White diatomaceous shale from road near Hollywood Country Club.

B. Opal shale, 1 foot above volcanic ash bed on Mulholland Drive and about 

50 feet above base of upper shale member of lower Modelo.

C. Hard platy shale 1 foot above volcanic ash bed on Mulholland Drive.

D, E. Two samples of Miocene shale from Kettleman Hills, collected by W. M. 

Bramlette. Analyses by R. C. Wells, record D-122.

D. Composite sample of ten siliceous shales.

E. Composite sample of ten diatomites or diatomaceous shales.

F. Altered shale from hanging wall of Argonaut mine, Mother Lode district, 

collected by Adolph Knopf and described in Prof. Paper 157, 1929. Analysis by 

J. G. Fairchild, record C-699. Ankerite, quartz, sericite, pyrite, and carbonaceous matter.

SiOj...... .- 

AlzOa--- ~

FejOl. ...................................

¥&0.. ...... ..............................

MgO................. ...... ..............

CaO. ....................................

NatC>. ....................................

K,0. ....................................

HtO-. ..................................

H2 0+............. . . .. 

TiOj..... ............ ................. ...

C02 ................ .. ....... .

PsOt.. ................................. ..

S03.. ........... ................ ...... ... c\... ................................... .

F. ........... ............................

MnO.. ..................................

FeSj.. .............. .....................

A

73.71

7.25

2.63

.44

1.47

1.72

1.19

1.00

2.88

6.94

.5C

.24

.16

None

100. 13

B

73.04

3.58

1.28

.44

.45

8.63

.40

.55

2.82

2.69

.30

5.96

.15

.05

.10

100. 44

17.22

C

55.80

4.13

1.36

.44

.50

18.14

.40

.75

2.58

3.02

.25

12.81

.24

.16

100. 58

18.52

D

82. 69

1.76

1.00

.31?

1.08

2.93

.50

2.61

} 4.75

2.28

.21

.15

.012

Small

100. 282

8.58

E

65.20

4. 5fi

2.22

.32?

1.54

6.47

1.64

3.22

0.31

4.05

.15

1.22

.009

Small

99. 909

5.53

F

57.21

i 11. 76

1.22

4.30

3.58

3.43

2.84

2.47

f .06

I .83

.70

8.37

2.14

1.50

100.41

' Includes PzOs if present.

COLORADO

A, B. Two specimens of oil shale collected by W. H. Bradley. Determinations 

of "soluble silica" only by E. T. Erickson, record C-960, gave 0.25 percent in A 

and 0.14 percent in B.

A. Monarch Shale Oil mine, sec. 32, T. 6 S., R. 97 W., Garfield County. 

Carbonates, analcite, and accessory pyrite, feldspars, quartz, zircon, and apatite.

B. East Middle Fork of Parachute Creek, sec. 10, T. 5 S., R. 95 W. Chiefly 

iron-bearing beidellite, with similar accessories.

C, D. Two shales from Grand Junction studied by M. I. Goldman with references 

to the origin of the niter. Analyses of water-soluble portion by W. B. Hicks, 

record 3081.

K.......... ......

Ma

Ca. ... ..

Mg.. ............ 

804 - 

C

2.92

34.10

None

40.90

D

0.83

16.84

5.60

69.09

C03----- .....

Si02 . ............

NH4 - ............

NOs. ...... ......

C

20.22

1.46

.17

. £t&

D

1.12

w

.08

. Of

NOa.. ...........

Total soluble

salts.. .......

C

0.01

100. 00

0.36

D

0.005

100. 005

2.09
64 ANALYSES OF ROCKS AND MINERALS, 1914-36

IDAHO

A, B. Two samples of calcareous shale, Hailey quadrangle. Analyses by 

W. C. Wheeler, record 2882.

CaO ... .- . 

MgO-..-- ...... -..---.-. . . .... - .-... .. 

A

69. 85

9.24

5.66

14.78

B

74.32

11.33

1.85

11.68

OHIO

Shale collected by R. E. Lamborn. Analyses by J. G. Fairchild, record D-24. 

A. From plant of Webster Brick Co., South Webster, Scioto County. 

B. From plant of Marietta Shale Brick Co., Marietta.

C. From plant of Wadsworth Brick & Tile Co., \% miles southwest of Wadsworth, Medina County.

Loss at 105° C-. ............

SiOz. - .

AhOs ----.---. --------

CaO... ................. .... MeO .. _

TiOz ......

A

0.76

7.04

5G..64

18.33

8 70

fifi

2 09

1.30

B

1.73

6.48

55.80

18.65

2.08

1 Q^

1.45

C

0.62

3.80

75 9A

10.96

4.01

.40

.90

PzOs ._ - 

Na2 0 . . -----------------

KzO -------------

MnO . _ .

A

0.31

.78

3.92

Trace

100. 53

.31

B

0.19

.93

3.33

Trace

100. 75

.29

C

0.15

.51

2.63

Trace

99.83

.06

1 FeO disregarded.

SWEDEN

Kolm, a low-grade oil shale of Upper Cambrian age. Electroscopic determination by R. C. Wells, record C-930, gave 0.28 percent of U03 .

A. Partial analysis by R. C. Wells, described in Washington Acad. Sci. Jour., 

vol. 21, p. 409, 1931. Calculated age, 450 million years. B. Analysis of ash by 

M. F. Connor, record C-1008.

Pb.. ........ ... ... ...... ..

U - -... ............

TiOz-- -- - -----

VtOt.. .......... ..........

Be,Zr, Tli. ...............

ZnO ....................

Mo -----------------

Ash......... ...............

............. 0.0264

-._ ... .432

 _ ... .10

 .... .003

--_ .--. .004

 .-.. 31.25

SiO»..~- ..... ........ ... . 

A.hO3.. ...........................

CnO. .................. ...........

MsO . .... ...... ...... soY. .. 

K2 0 . 

TiOz. - -------- ...

PiOi... ...........................

......... 48.68

... ...... 20.34

... ... 20.00

......... .90

......... 1.40

 .62

------ .60

. ..-- 5.S4

... ...... .20

......... .15

......... 1.27

100. 00

. .- 4.74

... . _ 3.85

WYOMING

Samples of shale and related products collected by W. W. Rubey.

A. Bentonite from mine near Pedro, lower part of the Pierre shale.

B. Carbonate concretions in the bentonite, upper part of Pierre shale.

C. Unaltered tuff from lower part of the shale at the mine.

D. Ironstone bedded in lower part of the shale, N% sec. 17, T. 49 N., R. 

66 W., Crook County.

E. Weathered Mowry shale near Thornton described in Prof. Paper 154, 

pp. 153-170, 1929.

Analyses by J. G. Fairchild: A-C, record C-941; D and E, record C-870. 

D gives soluble in 1-1 hydrochloric acid.
CLAYS, SOILS, ETC. 65

SiOa...-. ..............................

AljOs. . 

FejOs ... .- .....

FeO........... .. ................... ...

MgO-. .- 

CaO.......... ... . ..... ....... ...

NRtO. ........................... .........

K^O. ................... .. ................

B^O. .....................................

TiOt............ - ........................

CQ2 .. ....................................

PjOs...... ........ ....... .................

BOt.. ...... ................. ........

A

56.93

14.75

2.08

1.86

6.35

2

OQ

.93

10.61

4.61

100. 40

B

1.47

22.06

18.24

54.48

Qfi 9*1

c

69.54

10.63

.53

.22

3.27

1.87

.80

12.76

None

QQ R9

D

7.07

11. 25

26.64

29.00

E

84.14

1 5.79

1.21

, .41

. |v . 13-

QO

.50

5.56

PV' . 22

W None

1.21

100.41

ANALYSES OF CLAYS, SOILS, ETC.

The analyses of individualized, selected, and purified clays, where 

the material represents a single, homogeneous substance, are listed

under minerals for example, allophane, anauxite, beidellite, halloysite, kaolinite, leverrierite, montmorillonite, nontronite, potash 

clay, and saponite.

ALABAMA

A. Clay, residual from the Bangor limestone, collected by E. F. Burchard at 

the DeBardeleben mine of the Alabama Fuel & Iron Co., Russellville district, 

Franklin County. Analysis by J. J. Fahey, record D-345.

B, C. Two samples of ferruginous sand from the Tuscaloosa formation, collected by E. F. Burchard in the Russellville district. B, Red Bay, C, Belgreen. 

Analyses by R. E. Stevens, record D-411.

D. Ferruginous surface soil, Langdon ore mines, Cherokee County, collected 

by E. F. Burchard. Analysis by R. E. Stevens, record D-458.

SiOa.. ....... ........

AljOj...... ..........

FejOj.... ... ... ...

FeO... ..............

MgO. ...............

CaO.................

NajO...... ..........

K2 0... ..............

HjO ...............

HiO+........ .......

TiOj.. ..............

A

46.96

14.52

6.92

.27

2.56

9.39

.10

2.43

} 8.23

B

82.64

8.61

3.83

.20

.14

TracG

.46

3.72

.55

C

83.46

8.16

^ 07

1Q

.22

.14

.18

3.53

.26

D

51.85

16.57

18.47

.43

/ 2.04 

\ 6.89

.73

CrjOa.-- 

CsOs .... ....... ....

COs.... .............

SOt.. ...............

s... .................

MnO..... ....... ....

A

8.08

100. 02

B

0.02

.14

None

100. 31

C

0.02

.14

None

100. 27

D

0.04

.17

.05

.17

97.41

10. 04-

ARKANSAS

A. Nonplastic kaolinitic clay from Upper Cretaceous Tokio formation, sec. 

24, T. 8 S., R. 25 W., 5 miles southeast of Murfreesboro, Pike County, submitted by C. S. Ross. Analysis by George Steiger, record C-600.

SiOs...................... 47.42

Ali03 ..................... 36.52

VG^OS..................... .58

FeO...................... .10

MgO.... ........ .11

CaO...-...----........ None

NajO.....................1 0 on

KsO. ......../ ad°

!B.tO-.................... .87

K*0+.................... 12.23

TiOzPaOs.

002-

1.49

.09

None

99.71

B-P. Samples, more or less bauxitic, collected by M. N. Bramlette in a survey 

for bauxite. They represent two well sections in Saline Count}7 . B-K, well C-l, 

sec. 18, T. 2 S., R. 13 W; L-P, well C-3, sec. 12, T. 2 S., R 14 W. Analyses by 

R. E. Stevens, record D-391.

Feet 

B................ 141-143

C.........__... 143-145

D.........._... 145-147

E................ 147-149

Feet 

F.............. 149-151

O..-.-....-.... 151-153

H ......... 153-155

I............... 155-157

Feet 

J............... 157-159

K_............. 159-161

L.. ......... 118-120

M.............. 120-122

Feet 

N ........... 122-124

0..____..... 124-127

P... .... 127-130
66 ANALYSES OF ROCKS AND MINERALS, 1914-36

SiOi.. ..............................

AljOs ........ ........ .

YeiO}.... ........... ................

H2 0 below 160°....... ..............

H2 0 above 160°... ... __ ...........

TiOj...... ..........................

B

38.06

36.32

2.35

.75

15.90

1.98

95.30

C

33.88

38.34

6.82

.69

18.22

1.50

99.45

D

17.00

39.92

14.53

.89

24.54

1.69

98.59

E

14.25

43.72

12.30

.76

25.01

2.04

98.08

F

15.90

44.78

10.80

.68

25.52

L98

99.66

G

24.21

43.00

7.88

.85

20.92

1.89

98.75

H

30.62

41.68

5.86

.73

18.61

1.73

99.23

I

19.89

42.69

10.76

.91

22.76

2.16

99.17

SiOz... ........................

A12 03 ....... .............. -

FeaOs ... ...... ........

HS 0 below 160°................

H2 0 above 160°... .............

TiOj....... ....................

J

31.21

39.11

6.82

.95

17.60

1.92

97.61

K

38.60

37.75

3.97

.74

15.06

1.92

98.04

L

14.35

42.40

13.61

1.24

26.09

1.40

99.09

M

7.15

52.77

8.44

.62

29.83

1.32

100. 13

N

9.78

41.30

17.99

.82

28.09

1.61

99.59

0

28.38

36.81

11.93

.70

19.81

1.15

98.76

P

33.72

33.15

12.39

.82

17.83

1.05

98.96

Q-V. A second series of samples of bauxite ore taken later by M. N. Bramlette. Analyses by R. E. Stevens. record D-454.

Q. Drill hole B-5, depth 74-76 feet, northwest corner, sec. 2, T. 2 S., R. 14 

W., Saline County.

R. Drill hole B-5, depth 76-78 feet, same locality.

S. Drill hole B-5, depth 78-80 feet, same locality.

T. Drill hole B-5, depth 80-83 feet, same locality.

U. Outcrop sample, old Calumet mine, sec. 26, T. 2 S., R. 14 W., Saline county.

V. Outcrop sample, sec. 12, T. 1 S., R. 13 W., Pulaski County.

SiOz . ___ ............. _ ...........

A12 03- .......... .......................

fetO^. ...............................

H2 0-_...... .............................

H2 0+........ ............................

Ti02 ... ..................................

Q

15.72

51.00

2.73

1.44

26.35

2.25

99.49

R

4.73

58.03

2.77

.63

31.31

2.46

99.93

S

5.74

58.60

2.57

.15

30.70

2.06

99.82

T

9.43

52. 00

5.83

.42

26.71

4.08

98.47

U

10.35

56:58

2.23

.22

29.03

1.79

100. 20

V

22.48

47.68

2.47

.52

22.27

2.55

97.97

CALIFORNIA

Clays submitted by different persons.

A, B. Two bentonitic clays collected by H. W. Hoots. Analyses by J. G. 

Fairchild, record C-976.

A. Sample from 4- to 5-foot bed in Tejon formation, San Emigdio foothills, 

sec. 19 T. 10 N. R. 19 W.

B. Sample from Muddy Creek, San Emigdio grant, NWJ4 sec. 18, T. 10 N., 

R. 22 W. Selenite present.

C. Bentonite from north flank of Santa Monica Mountains, Los Angeles 

County, collected by M. N. Bramlette. Analysis by Charles Milton, record 

D-181.

D. Claylike rock from drill hole on potash permit L. A. 047660, SW% sec. 27, 

T. 11 N., R. 2 W., S. B. M., collected by B. W. Dyer. Analysis by R. K. Bailey, 

record D-127.

E. Bentonitic clay from Death Valley, submitted by C. S. Ross. Analysis by 

R. E. Stevens, record D-364.

Si02 ..._._..._

AhOs-. . ..

FezOs. ...... 

FeO..........

MgO.........

CaO. ........

Na2 0. .......

K2 0..........

H2 0-....._._

A

65 44

»2.89

9 n 1;

1.42

2.30

1 DC

5.68

B

63.76

12.28

22.52

9 7^

2.16

1.33

1.40

7.16

C

50.03

16.75

5.83

.47

2.78

1.20

.26

(tn

13.53

D

64.80

i 16.50

1.70

1.10

11.60

E

33.02

19.50

2.33

.13

4.04

.80

3.80

11.69

H2 0+........

Ti02 ........_

P2 05 .. .......

SOs.. ..

MnO._ ......

BaO.. .......

A

3.58

.40

99.27

B

4.38

.36

2.34

100. 04

C

7.52

.65

.01

.16

100. 03

D

0.24

2.80

98.50

E

5.44

.13

100. 04

i Contains a little FesOs. 

' Total Fe.
CLAYS, SOILS, ETC. 67

COLORADO

A. Clay residue from limestone at Moffat tunnel, separated by T. S. Levering. 

Analysis by J. G. Fairchild, record C-989.

B. Sample of clay, probably bentonitic, from Westcliff, submitted by C. S. Ross. 

Analysis by R. E. Stevens, record D-364. See Montmorillonite, Q, p. 107.

Si03 .......... ................

AhOj.. ......................

FejOs. 

FeO........ ..................

MgO....... ..................

CaO. ........................

NaaO. .......................

A

58.27

20.30

3.00

.23

1.79

.82

1.91

B

54.77

15.88

.58

.62

4 00

2.08

1.06

,

K2 0...... ....................

TiOj... ......................

HaO-.... ...................

HiO+-.....-.. ............

A

4.96

3.85

5.04

100. 17

B

0.25

.17

9 OK

10.25

OO 01

FLORIDA

Bentonitic clay collected by A. C. Munyan 1.4 miles west of Marianna. 

Analysis by J. G. Fairchild, record D-467.

SiOj..__.........__.. 55.40 | NasO....___..__._ 0.02

AljOa..................... 23.68 KjO.............___.... 1.73

Fe2 03 ..............

MgO.................

CaO..................

3.76

1.09

.05

H2 0-. .................. 5.50

H2 0+.................... 8.00

Ti02 ................... .78

P2Oj.. 

MnO.

0.04 

.01

100.06

IOWA

Clay residue from a limestone, prepared by C. S. Ross in a study of the disintegration of limestone. Analysis by J. G. Fairchild, record C-992.

Si02 ...................... 61.70

Ah03 ..................... 17.75

FejOa------------------ 3.52

MgO.........-..- . 2.71

CaO.................... Trace?

NazO................... 0.32

KjO.................... 6.66

H2 0-.. ............. 1.18

H8 0+................... 5.24

TiOj ................ .75

9.83

LOUISIANA

Two samples of so-called paraffin earth from Iberia Parish, collected by E. W. 

Shaw. Analyses by R. C. Wells, record 3161.

HZ 0 at 130°. ...... ................

Ignition above 130° ..... ...... ..

Si02 ........ .. ...

FesOa... 

AhOz...... ........................

CaO............ ... . ............ ..

MgO.....-.-.- .... . ....... .

KjO.... ...

A

55.46

13 78

21.33

1. id

6.09

.36

.31

.77

B

56.71

19 7Q

21.20

1. 67 

5.86

.43

.47

NaaO....... ................

SiOa soluble in 5 percent NaOH...

Organic matter soluble in'gasoline..

A

0.20

99.63

3.13

.92

.01

B

99.07

 '

MAINE

Bottom samples from the Gulf of Maine, collected by the U. S. Bureau of Fisheries, and submitted by T. W. Vaughan. Five typical analyses by J. G. Fairchild, 

from record C-407.

Soluble in HC1: 

SiOj. 

(Al,Fe)aOs. ----- ... ... .

CaO-............. ...............

MgO..... ........... ............

A

0.7

2.9

.3

.6

90.0

B

0.8

3.5

.4

.7

84.5

C

0.4

1.4

1.0

.3

83.7

D

0.5

2.5

.8

.4

91.8

E

1.2

6.8

.5

1.3

79.5
68 ANALYSES OF KOCKS AND MINERALS, 1914-36

MISSISSIPPI

A. Bauxitic clay from Tippah County, collected by E. F. Burchard on the land 

of W. T. Meadows, SW}$ sec. 36, T. 3 S., R. 2 W.

B. Ferruginous clay or laterite from Pontotoc County, collected by E. F. 

Burchard on the land of Joe Gregory, sec. 36, T. 9 S., R. 1 E. Analyses A and B 

by George Steiger, record D-351.

SiOj.- 

 AhOj 

Fe2 O3 - 

 HjO-.... - . . 

A

29.08

20.93 vi nn

2.30

B

6.38

32.03

Q7 77

1.34

H2 0+...... ......................

Ti08 . ............................

A

13.14

1.04

99.49

B

20.63

2.32

100. 47

C-K. Bauxitic clay from Mississippi, collected by E. F. Burchard and described 

in Bull. 750, pp. 101-145, 1925. Analyses by J. G. Fairchild, record C-482. 

C. Kemper County. 

D. Pontotoc County. 

E. Tippah County.

F. Tippah County, 6 miles west of Ripley. 

G. Tippah County, 1 mile northwest of Blue Mountain. 

H. Siderite and pisplitic bauxite, Union County. 

I. Pisolites of bauxite chipped from F. 

J. Winston County near Betheden. 

K. Winston County near Fern Spring. Samples J and K are mixed with clay.

AhOs--- --------

FesOs. - -

FeO'_ - ---- .-.

MgO.. -------------

CaO. ...... -. ..-

H2 0- - 

.H2 0+ 

TiOs 

MnO-- - -

C02 

,

C

20.86

49.93

1.37

None

.10

None

1.16

23.38

3.00

Trace

Trace

99.80

2.316

D

28.61

46.27

1.46

None

None

.62

20.56

2.50

Trace

None

100. 02

1.585

E

2.78

59.58

1.72

None

.07

None

.36

31.98

3.60

Trace

None

100. 09

2.050

F

47.32

36.18

1.08

None

.07

None

.49

13.19

1.60

Trace

None

99.93

G

60.68

15.66

6.40

None

1.75

.29

5.50

6.18

1.00

Trace

None

a 97. 52

H

2.88

27.83

1.78

27.58

.77

1.10 ( 2)

15.55

2.00

1.53

19.13

100. 15

I

8.10

38.55

3.35

15.29

.51

.51

.73

19.63

2.80

.75

10.84

101. 06

J

52.57

31.35

2.27

None

Trace

None

.48

11.80.

1.60

Trace

100. 07

K

44.19

37.59

.77

Trace

.54

13.64

3.20

99.93

1 FeO of FeCOs.

2 Undetermined.

3 About 2 percent of alkalies probably present.

MISSOUKI _

A-E. Five diaspore clays collected by J. M. Hill in Franklin County. Diaspore identified as present by E. S. Larsen. Analyses by Chase Palmer, record 

3224.

F. Diaspore product washed from D, apparently dehydrated before analysis.

8iOt........ ............................. .

AljOBHjO-.. 

HaO-R-- .... .... ... ... ...

TiOj. ... 

A

27.67

54.00

.10

.99

10.68

3.09

96.53

B

7.07

74.14

.27

.10

13.80

4.35

99.73

C

3.80

76.67

.77

13.59

4.84

99.67

D

15.59

65.01

1.05

.49

13.44

3.39

98.97

E

40.57

31.53

9.49

.76

11.89

5.61

99.85

F

0.57

nc oo

1.13

.43

2.53

99.99
CLAYS, SOILS, ETC. 69

NEVADA

A, B. Composite sample of mud and clay from boring, Black Rock Desert. 

Analysis by R. K. Bailey, record 2916. A, Total analysis; B, soluble portion.

SiOi.. ...........

AhOa. ...

Fej03 . ....... .

MgO..__ .....

CaO-....- ..

NajO... ......

K3 0. ............

H3 0-_ ..........

HaO+.. .........

COi.. ...... .....

.......... 43.58

.......... 8.23

.......... 3.57

.......... 2.68

.......... 7.34

.......... 10.15

.......... 2.90

.......... 4.66

.......... 5.86

.......... 5.13

A.

P2 06 .. ... .......

SQi.. ...........

Cl...............

MnO. .

BjOi .........

.......... 0.46

.......... 1.25

......... 3.55

......... .18

......... .69

100.23

......... .80

99.43

B

Cl..... ..........

S04 . ----- - -

COi... . ............

HCOs ... - 

B<07 .-- ...

Si02 ... ..........

Na... ..............

K..... .............

...... 43.48

...... 10.37

5.08

..... 1.42

..... 1.34

..... 37.35

OQ

100.00

C-I. Seven surface muds from Columbus Marsh. Composition of portion 

soluble in water. Analyses by W. B. Hicks, record 2934.

01........-.... .... 

S04 

B4 07 

COa.. ......... ... ... ... .......

SiOa... ........................

K.. ......................... ..

Ca......... .................. ..

Na. ........ ..... 

Mg.... ........................

Soluble...... ...........

C

40.30

21.30

1.14

.23

.58

5.89

30.56

100. 00

18.26

D

53.30

2.31

2.21

3.20

.50

38.48

Trace

100.00

11.27

E

48.15

4.15

1.45

4.67

2.60

.47

38.51

Trace

100. 00

20.00

F

49.20

5.78

6.21

.75

.43

.51

.37

36.75

100.00

11.75

0

34.15

4.44

25.88

.92

1.53

1.91

2.72

28.45

100.00

6.53

H

53.20

3.45

3.30

1.30

2.08

.29

36.38

100.00

7.24

I

45.40

2.92

3.01

4.93

4.80

.67

38.27

100.00

10.96

PENNSYLVANIA

A. Clay shale from Antes Fort, sold as "rottenstone."

B. Similar material from Hull, England, analyzed for comparison.

C. Welsh "rottenstone." Analyses A-C by W. T. Schaller, record C-445.

D. Fire clay, submitted by C. S. Ross. Analysis by R. C. Wells, record C-942.

SiOs.. ....... ........

AhOj. ...... .........

FejCh . -- 

CaO. ................

MgO. ...............

A

52.5

&v. y

.7

2

C

5.7

B

67.6

J.O. O

1.2

7.3

C

70.4

14.7

.7

6.6

D

33.99

/44. 54

\ .38

.21

.12

20.57

TiOs..... ............

COs.... 

fiest, probably mostA

None

11.7

100.0

B

10.1

100.0

C

7.6

100.0

D

99.81

SOUTH DAKOTA

Bentonite from Ardmore used in making "refinite", submitted by J. Middleton. 

Analyses by W. T. Schaller, record C-207.

A. Natural clay, which swells only slightly in water. 

B. "Refinite."

SIOj.. .........

Ah03 .. ..

Fe2 03 

FeO. ..........

MgO..........

A

51.64

18.25

1.24

1.40

3.41

B

46.80

18.44

2.10

.34

4.05

CaO. ..........

Na2 0. .........

K2O. ..........

H 2 0-. ........

H2 0+. ........

A

2.18

2.09

.12

13.22

6.33

B

3.36

3.69

.18

12.12

7.61

TiOs -

COj.. .......

A

W(')

99.88

B

W(')

98.69

1 Present.
70 ANALYSES OF ROCKS AND MINERALS, 1914-36

TENNESSEE

"Residual" clay from marble of Blount County. Partial analysis by Chase 

Palmer, record 2981.

.. ...... 19.83

93.89

SIOj.. 

AhO,. 

FejOsMgO.

. 21.32 

. 14.30 

. 8.09 

. None

CaO... 

HjO-.

26.81

J

C02 -

Mno.___________ None 

TEXAS

A. Glauconitelike material from Mills service station, Loves Lookout, Cherokee County.

B. Glassy volcanic ash from Post City. Samples A-B submitted by C. S. 

Ross. Analyses by J. G. Fairchild, record D-289.

C. Bentonitic clay 0.8 mile east of South Bosque, McLennon County, collected 

by L. W. Stephenson. Analysis by J. G. Fairchild, record C-1077.

D. Surface crust of soil from Posey Saline, Anderson County, collected by 

Julia Gardner. Analysis by J. G. Fairchild, record C-639.

AljOa.... .... ---.

FejOs 

FeO. ...........

MgO.. 

CaO.. . ........

NajO.... ...

KiO. ...............

A

26.40

16.80

18.40

19.35

2.70

Trace

.52

B

72.74

11.84

.51

1.17

.40

54

2.24

6.05

C

51.87

26.80

1.42

4.42

i on

.03

.09

D

80.21

5.16

2.30

Trace

} 1.00

H«0-_ .............

H*O+_ .............

TiOz ..... ......

P2 06 . ............

S03 ----------

A

3.70

11.65

.23

.28

100. 03

B

4.62

.15

100. 26

C

0.81

12.61

.73

100.68

D

} 10.27

99.34

UTAH

Five muds from Salduro Salt Marsh. 

R. K. Bailey, record 2960.

Partial analysis of soluble matter by

K...... ..... . .. .

01 

S04 

HsO in mud. __ . __ . ___ ...... __ .

A

2.25

47.77

13.86

14.55

6.01

B

2.64

55.84

3.65

13.00

5.79

C

1.82

54.27

5.41

13.98

5.12

D

2.36

49.65

13.14

15.36

5.93

E

3.48

56.67

3.55

11.72

6.75

VIRGINIA

A. Under-water marine sediment from Chincoteague Bay, collected and analyzed by E. T. Erickson, record D-288.

FesOs 

Ah03 

Ti02 

PsOs...... ......

CaO 

 . ..... 76.32

... .... 1.08

... ... 10.69

 .46

 --.---- .07

 1.46

MgO- ..-.

NazO.. .........

KjO. . ........

Nad.. .

MnO-... ... .

. 0.77

-.. 1.65

- 1.90

 .88

 .02

SOs . ... 0.31

Loss at 100°.-....-...--. 1.55

Further loss on ignition... 3.34

100.50

B-D. Three clays of the beidellite type collected by C. S. Ross. Analyses by 

R. C. Wells; B, C, record D-268; D, record D-468.

B. Morefield pegmatite mine, Amelia.

C. Fracture filling in pegmatite, Roseland.

D. Claylike material containing cobalt from mine of Southern Mineral Products Co., Amherst County.

Si02 ... ...... .....

AhOs 

FejOs 

FeO.... ......... ......

MgO..... ..... ....... ....

CaO.. .... ... .......

KsO..__ ........ .... ......

Na2O ....... ... ... -. HjO- . .... ...... .

H8 0+ ... ....... ...

B

37.93

28.10

13.60

.72

.15

.71

.06

4.52

11.92

C

44.23

31.30

5.77

.18

.45

.95

.19

3 07

12.05

D

29.41

28.97

12.20

.18

.60

.26

.18

4.65

13.13

TiOj... . .... ..... 

COz . ..................

NiO... ......... ... .... ...

CoO ........ .........

MnO.................. ...

LiiO.......... ............

CuO. ....................

O... .... ...... ............

B

2.70

100. 41

C

1.01

100. 10

D

0.76

.03

1.51

6.75

1.53

100. 16
CLAYS, SOILS, ETC. 71

WASHINGTON

Five clays submitted by F. H. Knowlton. Approximate partial analyses by 

J. G. Fairchild, record 0-408.

A. Corner 13th and Perry'Streets, Spokane, represents bank 40 feet high.

B. Half a mile north of Mica, Spokane County. From well, beds probably 

10 feet thick or more.

C. Schuele's ranch, south of Fivemile Prairie, Spokane County. Represents 

beds 20 feet thick or more.

D. Spokane, Portland & Seattle Railway cut west of Latah Creek, Spokane 

County. Represents beds 20 feet thick or more.

SiOa.. ...... . - ........... .. ............

A.liO)....... ..............................

A

64.00

20.00

B

57.00

15.00

C

70.00

19.00

D

56.00

23.00

E

45.00

30.00

WYOMING

A-C. Bentonitic clays collected by W. W. Rubey. Analyses by J. G. Pairchild, records C-870 and C-941.

A. From top of Mowry shale at Clay Spur.

B. From lower part of Belle Fourche shale, member of Graneros shale, at 

Osage, about 20 feet above Clay Spur bentonite.

C. From lower part of Pierre shale, mine near Pedro.

D. Bentonite from Big Horn Basin, collected by C. T. Lupton. Analysis by 

George Steiger, record 3085.

E. Bentonite from NW}4 sec. 30, T. 47 N., R. 63 W., Weston County, collected 

by D. F. Hewett. Analysis of fine portion only by George Steiger, record 3181.

F. Bentonite from Upton collected by C. S. Ross. Analysis by J. G. Fairchild, record C-993.

SiOz ...................................

AbOs-.. --. ....-.... .-.

FejOa. ...................................

FeO . ..................................

MgO....... ..............................

CaO. ....................................

NazO..... __ ......... _ ...............

K2O...... ................................

HsO-...._... ............................

H2 0+...... ..............................

TiOz....... ..............................

COz.............. ........................

MnO... ..............................

A

70.98

i 11.47

'2.48

1.38

.26

1.69

.75

ix. oft

.10

None

100. 43

B

53.50

i 21. 57

a 3. 28

1.89

1.25

1.94

1.04

15.20

.11

None

99.78

C

56.93

' 14. 75

»2.08

1.86

6.35

2.28

.93

10.61

4.61

100. 40

D

56.96

19.46

3.60

.16

1.77

2.06

.86

.87

( 7.85

\ 6.64

.16

.10

100. 49

E

54.31

20.22

1.88

.19

.98

.94

2.35

.21

13.18

5.46

.07

99.79

F

55.44

20.14

3.67

.30

2.49

.50

2.75

.60

} 14. 70

.10

100. 69

1 Includes any PsOj. 3 FeO probably absent. 

MISCELLANEOUS LOCALITIES

A, B. Marine sediments collected by the Challenger expedition. CaCOs determined by George Steiger, record C-326. Colloids by W. 0. Robinson and 

noncolloids determined by W. H. Fry, of the Bureau of Soils. A, red clay; 

B, blue mud.

CaCOs - ---..........-.......-...._......-.-. ..... ..- ..-.....

A

63.3

16

8.8

B

66.5

22

9.2

71413 37 6
72 ANALYSES OF ROCKS AND MINERALS, 1914-36

C-H. Samples of ocean-bottom mud submitted by T. W. Vaughan. Analyses 

by J. G. Fairchild, record C-303 and C-543. A few representative analyses 

have been selected for purposes of reference. See Carnegie Inst. Washington 

Papers from Dept. Marine Biology, vol. 23, 1926..

C. Atlantic, latitude 28°7', longitude 74°14'.

D. Caribbean, latitude 16°48', longitude 75°51'.

E. Pacific, latitude 7°24', longitude 79° 14'.

F. Pacific, latitude 5°48', longitude 79°39'. C-F collected by Coast and 

Geodetic Survey steamer Surveyor.

G. Pago Pago Harbor, Samoa. Described by M. N. Bramlette in Carnegie 

Inst. Washington Papers from Dept. Marine Biology, vol. 23, p. 3, 1926.

H. Nuuli Lagoon, Samoa, near center.

Soluble: 

SiOi.. ...............................

Fej03 

A.\tOz. ........................... ..

CaO__ ... 

MgO. . ... ................

PiOe

K2O ...... ...................

NajO.-. ........ ...... ... ...... ......

M.nO. ...............................

CO^........ ..........................

Insoluble: 

SiOj.. ...

'Fe20z.......... ...................

A.WZ.. ..............................

CaO.. ................. ..............

MgO... ..............................

K2 0. ........ ....... 

Na2 0 . ... . 

C

1.07

3.70

2.93

22.50

1.90

.12

.63

1.39

32.21

j 10. 01

.43

.28

2.05

.35

D

0.87

1.12

..94

45.45

.74

.07

.20

3.39

8.39

4.83

E

6.61

5.62

1.65

2.30

53.30

3.13

15.82

F

0.93

4.34

5.12

1.23

2.28

.12

56.82

3.42

12.89

.76

.83

.89

.91

Q

0.>97

} 14. 72

3.80

2.03

.43

(2)

32.55

} 326.42

1.13

.90

1.58

H

0.57

{

Q7

1.42

49.11

2.92

.13

40.30

1.27

1.34

2.10

i Includes a little Ti02 .

J Contains much organic matter.

3 Contains some TiOj.

ANALYSES OF ORES AND GANGUE MATERIAL

Many partial analyses and routine determinations of metals, 

phosphates, ores, hydrocarbons, brines, potash salts, coals, minerals, 

mine waters, oils, nitrates, and miscellaneous substances have been 

made in the Survey laboratory, which do not need to be reported 

here, as they have little interest beyond answering some particular 

question. There are a few analyses, however, mostly of iron and 

manganese ores or gangue minerals, which show the usual composition 

of such materials, and these are given below. But if the material 

analyzed was chiefly of geochemica] interest, on the one hand, or a 

mineralogical specimen, on the other hand, its analysis is given under 

one of the other headings.

ALABAMA

A-E. Iron ores collected by E. F. Burchard.

A, B, Clinton iron ores; analyses by R. C. Wells, record 3111. A, Crudup; 

B, Greasy Cove.

C-E from the Russellville district; analyses by J. G. Fairchild, record D-279. 

C, Small pebble of brown ore; D, selected pebble for composite analysis; E, porous 

brown iron ore.

F. Ore from Kent Mountain area. Analysis by Charles Milton, record D-284.

G. Low-grade brown iron ore, clay replacement type, from Penny Hollow, 

sec. 33, T. 6 S., R. 12 W., Franklin County. Analysis by George Steiger, record 

D-351.
ORES AND GANGUE MATERIAL 73

SiOj. ... .................

Al,0a .................

FeO... ........ ... ..........

MgO.. .......... ..............

CaO...........................

KjO.-...- . .......... .....

HjO- . . . .

HaO+..... ....................

TiOj.... .................... ..

COa...... .................... .

PjOj .......................

S.. ............................

MnO- ........................

A

27.67

10.39

42.15

5.93

2.56

.62

.84

.07

.04

90.27

B

7.56

4.14

54.10

12.52

.17

.41

.71

.07

79.68

C

14.44

13.69

57.90

None

.05

1.32

11.92

.76

.10

.25

100. 43

D

12.44

11.38

62.02

.18

None

.05

1.50

11.73

.60

.10

.03

.09

100. 12

E

4.88

1.41

80.72

.18

None

1.41

11.34

None

.10

.34

.15

100. 53

F

4.97

3.74

81.78

.66

.04

.04

/. o/

.32

.08

.85

.14

99.99

0

' 36. 03

1.75

52.10

/ 1. 35

I 8.08

.29

99.60

i Insoluble.

H-L. Five samples of iron ore collected by E. F. Burchard. H-K are noteworthy on account of their high manganese content, a small quantity of cobalt, 

and traces of lead and copper not determined. Analyses H-K, by Charles 

Milton, record D-479; L by R. E. Stevens, record D-429.

H, I. Cherokee County, sec. 9, T. 12 S., R. 11 E., lands of W. C. Pope.

J. About 3 miles south of Spring Garden.

K. Cherokee County.

L. Russellville district, sec. 24, T. 6 S., R. 12 W.

SiOj.... ......

AhOs. ---~~

Mn..........

Fe.. .........

Co.......... .

H

3.68

12.67

34.99

2.05

1.73

I

6.50

19.37

28.01

5.14

4.13

J

4.27

13.11

33.44

5.90

2.47

K

20.04

15.42

29.12

2.42

2.94

L

5.81

3.00

.12

54.52

Ni. ..........

P............

S.. ..........

BaO. ........

TiOa.........

H

0.16

.24

None

8.45

I

0.18

1.20

J

0.12

Trace

5.78

K

0.12

2.42

L

0.59

.07

.06

M, N. Graphitic schists from Ashland, collected by E. S. Bastin. Determinations by A. A. Chambers, record 3120.

M. Composite of 30 samples from Southern Graphite Co. Graphite, 3.24 

percent.

N. Composite of 35 samples from Standard Graphite Co. Graphite, 3.84 

percent.

CALIFORNIA

Sam 

by R. 

down.

pies of natroalunite rock from Funeral Range, near Death Valley. Analyses 

K. Bailey, record 3024. A, Hard rock near surface; B, soft rock 60 feet

SiO .....

AlzCh.--

NaaO...

K20. .

A

7.46 

39.02 

5.27 

3.05

B

10.27 

38.46 

6.83 

1.04

HaO ... ...................... ..

SOs-- .........................

A

14.87 

30.52

100. 19

B

17.60 

25.03

99.23

COLORADO

A. Breccia from Cresson mine. Cripple Creek, collected by G. F. Loughlin. 

Analysis by R. C. Wells, record C-871.

Soluble in acid Insoluble in acid

HaO-. ...... ....

H2 0+.. ...... ...

SOs-- 

SiOz. ............

COz .... ..

FeO. ....... .....

CaO.............

MgO........ ....

AlsO3 ... -- 

MnO. . ..........

........... 0.66

...-.-.-... .55

........... .41

........... .70

........... 8.30

........... 1.94

........... 5.39

........... 2.57

........... .08

FeSj. .... ..-

SiO2 ... .......

KzO.... ...

NaaO... ....... _

FeO_..._.. 

FesOs.-. ..------

AUOs--. - 

TiOj. ..... .

CaO. ........ ...

MeO..... .---..

........... 4.32

........... 46.78

........... 6.92

........... 3.70

. ..- .49

........... 12.65

........... .74

........... .50

........... .65

Se, Te... ........ .

Zr02 --- ...... ....

As. ............ ..

F. ...............

Cl.. .............

S . ........... ..

BaO.............

PjOs. ...... ...

........ 0.08

........ .22

........ .02

......... .28

........ .07

99. 7£
74 ANALYSES OF ROCKS AND MINERALS, 1914-36

B, C. Two samples from Alma district, Park County.

B. Carbonate gangue, ankerite, from Orphan Boy mine, submitted by B. S. 

Butler. Analysis by J. 0. Fairchild, record C-1103.

C. Calcite from London mine, collected by G. F. Loughlin. Analysis by R. E. 

Stevens, record D-367.

CaO.............................

MgO.............................

FeO. ............................

MnO. ...........................

HaO--... ........................

B

29.90

19.10

2.12

1.00

.22

C

52.18

.26

1.22

1.87

C02 ..._ ..........................

B

45.34

2.36

inn nd

C

43.02

98.55

D. Sample of rock from dump, after gold extraction, Vindication Mining Co., 

Independence. Determination of potash by W. B. Hicks, record 3148. K2 0, 

12.08 percent.

CUBA

Four samples collected in a study of manganese ores by E. F. Burchard. 

Analyses by George Steiger, record C-59.

A-B. Abundancia mine, Manganeso, Oriente Province. 

C. Three miles west of Vinales, Pinar del Rio Province. 

D. Near Sabanilla, Oriente Province.

Insoluble in HC1-.-. 

(Al,Fe)203 .. 

CaO... ...........

MgO. ...............

MnO.... ............

A

58.39 

13.76

3.60

2.60

7.48

B

29.25 

7.00

4.12

1.96

39.01

C

25.09 

19.61

16.83

3.29

25.13

D

53.16 

14.74

3.40

4.00

.65

Equivalent to 

MnOz---.- -

Mn... ...........

A

9.16

5.79

B

47.80

30.23

C

30.79

19.46

D

0.80

.50

24.76

FLORIDA

An examination of sand at Pablo Beach as a source of zirconium was made in 

1918 by H. D. Smith, of the United States Bureau of Mines. Determinations of 

Zr02 by R. C. Wells, record C-97, were as follows: A, 0.4; B, 3.5; C, 2.3; D, 2.9.

HAITI

Manganese ore from Gros Marne, collected by W. S. Burbank. Partial analys is by J. G. Fairchild, record C-355: MnO, 33.3; Fe2 03 , 1.52; P2 06, 0.13.

IDAHO

In the study of different ore deposits in Idaho "siderite" of somewhat variable 

composition has frequently been analyzed as a fairly abundant gangue mineral.

A-E. Five specimens collected by C. P. Ross in the Hailey and Casto quadrangles. Analyses by J. J. Fahey, record D-249.

A. Lydia tunnel, Mascot mine, Hailey quadrangle.

B. Tunnel 8, Lost Packer mine, Casto quadrangle.

C. Whale mine, Hailey quadrangle.

D. Sunset mine, Casto quadrangle.

E. Yellow Jacket mine, Casto quadrangle.

F-I. Four samples from Wood River district, collected and described by D. F. 

Hewett in Bulletin 814, 1930. Partial analyses by Chase Palmer, record 3018.

F. Near Narrow Gage shaft.

G. Jay Gould mine.

H. Wall rock, Minnie Moore mine.

I. Minnie Moore mine, associated with galena.

J. Armstead mine, Talache, submitted by Edward Sampson. Partial analysis 

by J. G. Fairchild, record C-348.

K. Ramshorn mine, Bayhorse quadrangle, collected by C. P. Ross. Analysis 

by J. J. Fahey, record D-236.
ORES AND GANGUE MATERIAL 75

Insoluble in ENOa 

Insoluble in HC1..... 

FeO. .............. ..

MnO...... ...... ....

MgO. ...............

CaO..... ...... ......

COs (calculated) 

A

0.95 

"51.25"

1.97

5.65

38.91

98.73

B

1.72 

~46."03"

8.75

4.47

38.49

99.46

C

1.24 

"47."5o"

7.70

2.64

1.73

37.80

98.11

D

0.33 

"I."§6"

.01

1.06

53.43

43.98

100. 02

E

1.57 

~T§6~

.04

.73

52.95

43.19

99.78

F

~~6.~72~ 

48.62

9.10

.80

34.83

94.07

O

"o.'ei"

43.74

14.37

.79

36.34

95.85

H

~26.~63~ 

21.17

6.05

15.38

28. 79

97.42

I

"T39" 

42.19

13.50

.92

34.94

95.94

J

"47.~96~

11.40

1.10

Trace

37.60

98.00

K

"53." 67

5.45

2.14

None

38.59

99.85

MISSISSIPPI

A-C, samples of ore collected by E. F. Burchard. Analyses A-B by E. T. 

Erickson, record D-191; C by George Steiger, record D-351. D collected by 

0. B. Hopkins-analysis by R. C. Wells, record 3113.

A. Siderite, Blue Mountain.

B. Siderite, altering to limonite, associated with bauxite, Tippah County.

C. Ferruginous bauxite on the land of W. T. Meadows, sec. 36, T. 3 S., R. 

2 W., Tippah County.

D. Ferruginous sandstone near Reform.

Insoluble.. __ . ..... 

Soluble SiOj..... ....

SiOa...... ...........

AhOj....... ......... 

Fe2 03 

FeO.................

MgO........ ...... ..

CaO.................

H2 0-. ..............

A

1.27 

.77

.12 

.47

54.70

.26

.36

B

11.37 

1.18

.43 

7.58

45.20

.53

.57

C

.......

9.95

33.80 

36.30

1.91

D

41.3

~~47.~2

HsO-K_ .............

TiOj...... ......... ..

COa. ................

Pi-Oj-. ..... .......... 

MnO..... ...... ..

A

36.83

.20 

4.31

.41

99.70

B

"6.~l2~

29.56

.03 

.62

1.14

98.33

C

17.23 

1.24

.......

100.43

D

......

......

NEVADA

A-C. Three gangue carbonates from Pioche district, submitted by J. L. Gillson. 

Analyses by J. G. Fairchild, record C-638.

D. Manganese ore from 10-inch streak in Surprise claim, Golconda, collected 

by J. T. Pardee, described in Bull. 710, pp. 236-237, 1920. Analysis by Chase 

Palmer, record C-140.

E-G. Manganese ore from Three Kids deposit, Las Vegas. Collected by 

D. F. Hewett. Partial analyses by J. G. Fairchild, record C-1122.

Si02 _ . ........... ..........

f eiOi. .................. ......

FeO.. .. ...... ..

MgO 

CaO...... ....... ........ ...

COj (calculated)-- 

MnO ... ... ... ...

MnOj .............. ...

0....... ......................

BaO...... ... ... ... ......

PbO....... ... ... ........ .... .

W03 - - . ...... 

A

0.21

None

.20

55.77

44.09

.07

100. 34

B

0.05

NOH6

.70

55.33

44.23

inn 31

C

0.16

.27

54.66

43.92

1.11

mn 19

D

4.70

12.00

1.99

48.96

6.95

4.73

1 ^d.

an a?

E

1.27

46.31

1.31

F

6.01

42.93

.44

0

~* 3.87

44.26

5.65

H. Graphitic schist near Carson. Determination of graphite by A. A. Chambers, record 3086, gave 48.97 percent.

I. Sericite from talc gouge, Divide silver district, collected by Adolph Knopf 

and described in Bull. 715, p. 159, 1921. Analysis by J. G. Fairchild, record 

3259.

Si02 ............ ....................... 48.16

AhOs .. .............. 34.00

FeO_____ _______________ 2.07 

K)0......................................... 9.62

H2 0.. 

Ti02 .

5.84 

.20
76 ANALYSES OF ROCKS AND MINERALS, 1914-36

J-L. Samples of alunite from different localities.

J. Black Eagle mine, Rawhide district. Analysis by W. B. Hicks, record 

2967.

K. Railroad Pass; collected by Eugene Callaghan. Analysis by R. C. Wells, 

record D-341. On extracting the ignited rock with water on the steam bath the 

soluble alkalies amounted to: Na2 0, 0.46; K2 0, 3.01 percent.

L. Vein material near Sulphur, collected by E. S. Larsen. Slightly mixed 

with some other very finely crystallized material. Partial analysis by George 

Steiger, record 3217.

Si02 ...................

A12 03 ..................

Fe2 03 ..................

MgO..... ................

CaO-... ....... ... . .

Na2 0.... .................

K20 ...................

J

1.24

36.90

Trace

2.32

8.36

K

26.05

27.77

1.39

.76

6.58

L

1.56

37.00

.19

1.44

1.98

a

KA

Ti02 .-.._ ................

H2 0......... ............

H2 0+ - ... ... ... .... ...

S03 ....................

J

0.20

14.17

36.50

99.69

K

0.33

.38

9.52

25.17

97.95

L

37.06

88.77

NEW MEXICO

A. Kaolinite replacing quartz and sericite in a vein at Tyrone. Collected 

by Sidney Paige and described in Prof. Paper 122, 1922. Some pyrite is also 

present. Analysis by George Steiger, record 3211.

B. Limonite gossan from Magdalena district, collected by A. H. Koschmann. 

Analysis by R. E. Stevens, record D-451.

SiOz.... _ ......

A12 03 -. ..........

Fe2 03 --. ....

FeO.. ..........

MgO.. ..........

CaO. ............

Na2O. ...........

A

68.11

16.84

.80

3.53

.50

.44

.44

B

56.25

7.36

15.32

CO

1.70

K2 0. ............

H2 0-. ..........

H2 0+._ .........

F... .............

o

Ti02 -..._.......

P2 05 ... ..........

A

4.08

(0

(0

.09

3 1 ^

B

2.15

4.55

.41

.70

SOs ~

MnO._ ....... ...

BaO..... ........

Insoluble in HC1.

A

97.98

B

2.30

.06

1.92

3.29

96.83

70.38

1 Undetermined.

NEW YORK

Graphitic schists collected by E. S. Bastin near Saratoga Springs. A determination by A. A. Chambers, record 3120, on a composite sample from 35 places on

the property of the Graphite Products Corporation, gave graphite, 7.30 percent.

NORTH CAROLINA AND SOUTH CAROLINA

Six samples of altered rocks associated with gold-bearing lodes, collected by 

J, T. Pardee. Partial analyses by J. G. Fairchild, record D-453. 

A. Blackmon mine, S. C. Green schist ore body. 

B. Haile mine, S. C. Bumalo pit, gray banded schist.

C. Highway west of Yadkin River, Stanly County, N. C. Banded gray slate. 

D. Brewer mine, S. C. Outcrop south of big pit. 

E. Brewer mine, S. C. Outcrop in placer pit southwest of mill. 

F. Highway 1 mile north of Waxhaw, N. C. Slate saprolite.

Si02.. ---.- ......_...._..... -.. 

AhOsCPjOs) ..........................

FezOa (total Fe).__ .......................

MgO-... ................................

CaO. ........... .......................

TiOs............ .......................

K2 0 ... ................................

A

57.78

29.46

.50

Trace

1.12

7.26

96.12

B

41. 46

32.74

7J8

Trace

Trace

.74

9.18

91.30

C

62.08

17.50

8.28

2.61

1.48

.82

3.06

95.83

D

82.26

10.60

2.83

Trace

Trace

.30

2.88

98.87

E

75.84

12.70

6.25

Trace

Trace

.72

3.21

98.72

F

63.46

19.56

7.40

.72

Trace

.56

3.04

94.74
ORES AND GANGUE MATERIAL 77

SOUTH DAKOTA

Manganese nodules from the Chamberlain district, collected by D. F. Hewett. 

Partial analyses by J. G. Fairchild, record C-1123. A, B, outer layers; Aa, Bb, 

jnner layers.

I

Un. ..................................................

Fe... ........... ......................................

A

22. 95

8.06

Aa

17.95

3.15

B

22.68

8.61

Bb

18.25

3.14

TENNESSEE

Low-grade brown iron ore, of clay replacement type, collected by E. F. Burchard at Wright mine, Lawrence County. Analysis bv George Steiger, record 

D-351.

HaO+....... ................................ 7.86

TiC>2- ... .25

Insoluble........_............_........._ 49.90

Oj.......................................... 1.60

Oi......................................... 38.54

H20-......................................... 1.53

TEXAS 

A-Q. Iron ore, mainly limonite, from Cass County, collected by E. B. Eckel.

Analyses by J. J. Fahey, record D-375. CaO, MgO, and alkalies not determined.

A. Concord school district, 8 miles west of Linden, Cass County, in southwest corner of Linden quadrangle. Average of 10 pit samples. Limonite.

B. Same. Brown flinty laminated ore.

C. Surratt district, 4.5 miles north of Linden, Cass County. Low quality 

limonite.

D. Same. Typical good ore.

E. Northern part of Jernigan Hill, 5 miles S. 20° E. of Linden, Cass County. 

Picked quality concentrating ore.

F. Southern part of Jernigan Hill. Spongy cellular limonite.

G. Harris tract, 9 miles S. 30° E. of Linden, Cass County. Typical limonite 

ore, Trench F.

H. Same. Trench P.

I. Prewitt district, 6 miles S. 60° E. of Linden, Cass County. Good quality 

limonite. .

J. Hickory Hill, 7.5 miles N. 25° W. of Atlanta, Cass County. "Buff crumbly" 

ore.

K. Waters tract, 6 miles N. 45° W. of Atlanta, Cass County. Typical ore.

L. Atlanta district, 1.5 miles N. 40° W. of Atlanta, Cass County. Limonite.

M. Bivins district, 1.5 miles west of Bivins, Cass County. Limonite.

N. Bowie Hill, east end, 7.5 north of Atlanta, Cass County. Typical ore.

0. Same, extreme western part.

P. Same, central part.

Q. Bivins district, 1.5 miles west of Bivins, Cass County. Limonite.

SiCh... ....................

AhOs.. ...... _..._._.....__

FejOs-. ....................

HzO .....................

TiOz. ......................

C02-... ....................

PaOs.. .....................

S. .......................

SiOj.. ......................

AhOs... ....................

F6203... ....................

BbO. .......................

TiOa... .....................

C02 .. ......................

P2 05 .....................

S. ..........................

A

11.10

4.88

70.28

12.80

.17

.24

.09

99.56

B

15.72

8.73

61.44

13.39

.19

.02

.76

.03

100. 28

J

11.91

2.31

70.41

12.81

.15

.02

.31

.03

97.95

C

22.83

4.62

61.15

10.83

.16

.02

.22

.06

99.89

K

9.74

5.46

 71.22

11.90

.15

.02

.22

.03

98.74

D

13.31

6.45

66.47

13.11

.21

.02

.29

.06

99.92

L

10.04

4.85

70.91

12.82

.15

.50

.22

.03

99.52

E

2.24

1.04

85.62

10.72

.07

.50

.15

.05

100. 39

M

12.40

4.58

70.71

12.46

.14

.02

.17

.05

100. 53

F

20.28

6.42

61.52

12.01

.12

.02

.08

.05

100. 50

N

20.14

5.23

61.28

12.11

.15

.02

.23

.03

99.19

G

23.07

3.41

60.87

11.33

.16

.02

.18

.05

99.09

0

7.77

4.61

74.67

12.46

.15

.02

.21

.03

99.92

H

23.03

5.16

58.33

11.67

.21

.02

.21

.03

98.66

P

8.03

4.88

74.16

12.90

.15

.02

.25

.06

100. 45

I

18.20

4.33

64.52

10.88

.18

.02

.25

.03

98.41

Q

8.24

4/21

74.57

13.10

.15

.02

.17

.05

100. 51
78 ANALYSES OF ROCKS AND MINERALS, 1914-36

R-X. Iron ore from Cass, Marion, and Upshur Counties, collected by E. B. 

Eckel. Analyses by George Steiger, record D-375. C02 was estimated at 0.1 

to 0.3 percent in each sample. CaO and MgO also small if any.

R. Gilbert tract, Marion County, 6}£ miles northeast of Ore City, Upshur 

County. Limonite ore, unwashed.

S. Southeastern part of Gilbert tract, Marion County. Light-brown flinty 

ore.

T. Small deposit 2.2 miles east of Hughes Springs, Cass County. Limonite.

U. Southeastern part of Morris County, 5 miles S. 30° W. of Hughes Springs. 

Limonite.

V. Southwestern part of Cass County, Cain farm, 5 miles S. 10° W. of Hughes 

Springs. Limonite.

W. Spring Hill area, 5 miles S. 20° E. of Hughes Springs, Cass County. 

Limonite.

X. Hill 1 mile N. 55° E. of Avinger, Cass County. Limonite.

SiOz . ....................

AhOa - .......

FQ^O}. ........................

FeO......... ..................

H2 0-.. ....... ................

H2 0+......... ................

TiO2 __ ........................

P2 05 .. ........................

S.. ............................

MnO_... ...... ................

R

9.72

5.63

70.29

.51

1.30

12.38

.19

.18

.13

.03

100. 36

S

21.33

4.86

59.06

.34

1.98

11.52

.30

.14

.19

None

99.72

T

12.64

3.64

70.07

.14

1.12

11.55

.22

.20

.06

.10

99.74

U

10.96

3.74

72.45

.27

1.07

10.90

.14

.19

.09

.06

99.87

V

19.60

4.04

63.64

.40

1.12

10.53

.11

.26

.07

.07

99.84

W

3.08

2.41

82.93

.27

.72

10.60

.11

.11

.12

.06

100. 41

X

19.53

3.93

65.44

.40

.82

9.76

.09

.18

.10

.02

100. 27

Y-II. Limonite from Cass, Marion, and Upshur Counties. Collected by 

E. B. Eckel. Analyses by E. T. Erickson, record D-375. The A12 O3 may be a 

little high as only one reprecipitation of A12 03 was made.

Y. Daingerfield Hill, 1 mile west of Daingerfield, Morris County. Limonite.

Z. Hill 2% miles N. 45° E. of Hughes Springs, Cass County. Limonite.

AA. Hill 2 miles N. 30° W. of Hughes Springs, Cass County. Limonite.

BB. Hill 2 miles N. 70° E. of Hughes Springs, Cass County. Limonite.

CC. Norwood Hill, north end, 4 miles N. 65° E. of Hughes Springs, Cass 

County. Limonite.

DD. Hooten Hill, 0.5 mile northeast of Hughes Springs, Cass County. 

Limonite.

EE. Veal's Switch, Morris County, 2/l 2 miles northwest of Hughes Springs.

Limonite.

FF. Prewitt tract, 4}£ miles S. 45° E. of Linden, Cass County. Limonite.

GG. Road outcrop 0.9 mile west of Lanier, Cass County. Limonite with much 

sand.

HH. John Davis tract, 2 miles S. 70° W. of Linden, Cass County. Limonite.

II. Hagerty Hill on Cass ond Marion County line, 8 miles north of Jefferson, 

Marion County. Limonite.

Si02 .. ................

AhOa- . ..-. . -

FezOs----. _ .....----

MgO. ................

CaO..................

H2 0-_ ........... ....

H2 0+. ...............

Ti02...... ............

PsOs -.....- 

S. ....................

MnO. ................

Y

16.16

3.48

67.88

.11

.02

1.07

11.28

.10

.56

.03

.01

100. 70

Z

19.76

4.42

62.30

.16

.02

1.04

12.15

.30

.35

.03

.08

100. 61

AA

9.98

6.38

72.20

.12

.10

1.27

10.33

.14

.14

.09

.03

100. 78

BB

14.92

4.94

68.82

.21

None

1.19

10.23

.14

.21

.10

.11

100. 87

CC

13.10

7.65

66.23

.08

.04

1.23

11.56

.20

.46

.03

.05

100. 63

DD

13.70

6.13

66.73

.14

.08

1.75

11.59

.16

.40

.04

.03

100. 75

EE

9.24

5.88

69.40

.16

.08

1.58

13.33

.10

.28

.03

.02

100. 10

FF

13.54

5.26

70.16

.11

.06

1.19

9.67

.10

.20

.04

.06

100. 39

GG

19.72

3.99

64.01

.06

.08

1.09

11.08

.08

.13

.10

.06

100. 40

HH

15.88

3.91

68.69

.04

.06

1.00

10.42

.08

.14

.04

.08

100. 34

II

15.96

4.51

67.45

.13

.14

1.51

10.44

.08

.26

.04

.09

100. 61
ORES AND GANGUE MATERIAL 79

JJ-00. Iron ore of mixed character from Morris and Cass Counties, collected 

by E. B. Eckel. Analyses JJ-LL by J. G. Fairchild; MM-00 by Charles 

Milton, both record D-375.

JJ. Outcrop in stream, 0.75 mile S. 60° W. of Lanier, Cass County. Greensand.

KK. Same, greensand indurated with carbonate.

LL. Well on Daingerfield Hill, 0.6 mile N. 45° W. of Daingerfield, Morris 

County. Fresh oolitic glauconite(?).

MM. Southeastern part of Morris County, 5 miles S. 30° W. of Hughes 

Springs, Cass County. Partly oxidized carbonate ore.

N'N. Same as MM.

00. Knight area, 1.5 miles west of Lanier, Cass County. Cleaned carbonate.

SiOj.............. ........... .............

AliO».. ..................................

VfitOi.. ............. .....................

FeO._.. . .-.-..... ........ ..

MnO....... ....... ..... ..-.

MgO ---- -- 

CaO.. ...................................

NaaO. ...... 

K8 0.. 

HjO.... .........

Ti02 .. ...... .................... ...... ...

S... ... ...... ...... ....... ...... ...

COj... ... .......... ......................

P2 0S .. ...... .............................

JJ

39.39

16.83

8.09

15.38

1.51

.02

11.41

.27

5.66

.23

99.24

KK

24.48

5.59

7.74

35.70

.02

.34

5.00

.40

20.12

.25

99.64

LL

13.47

8.20

13.20

37.26

(')

9.42

.04

15.16

.64

97.39

MM

15.60

3.09

13.38

37.95

.23

.37

.90

4.16

.01

22.79

.94

99.42

NN

11.69

1.22

47.65

19.06

.23

.02

None

8.06

.01

11.04

.50

99.48

00

4.07

.30

5.23

55.30

.16

.03

None

.89

.02

33.30

.20

99.50

i Present.

PP-TT. Iron carbonate from Cass County, collected by E. B. Eckel. Analyses 

by J. J. Fahey, record D-375. CaO, MgO, and alkalies not determined.

PP. Surratt district, 4.5 miles north of Linden, Cass County. Average 

carbonate ore.

QQ. Same, picked carbonate ore.

RR. Surratt district, especially pure carbonate ore.

SS. Prewitt district, 6 miles S. 60° E. of Linden, Cass County. Cleaned 

carbonate ore.

TT. 1.7 miles S. 27° E. of Lanier, Cass County. Carbonate ore.

Si02 ..........

A12 03 . . .........

Fe2 03 . ......... .

FeO............

H2 0...... ...... .

Ti02 . ...........

PP

4.39

3.15

4.96

1.86

.12

QQ

9.59

4.03

3.67

2.50

.12

RR

3.23

3.66

2.05

KO Q4

1.90

.04

SS

1.64

1.98

3.02

cc Aft

1.30

.02

TT

1.98

4.49

54.03

1.38

.04

COj ..... ....

PjO«. 

C. ... ... ... ..

PP

31.01

.19

.38

Q7 RQ

QQ

28.85

.35

.51

98.25

RK

32.24

.32

.36

98.74

SS

34.95

.23

100. 10

TT

34.40

.16

.25

98.13

UU, VV. Graphitic schists collected by E. S. Bastin. Determinations by 

A. A. Chambers, record 3120.

UU. Composite of 80 samples on property of Texas Graphite Co., Burnet. 

Graphite, 10.64 percent.

VV. Richest rock, same locality. Graphite, 11.74 percent.

WW-YY. Greensands, thought to be an intermediate stage in the origin of 

iron ore, collected by E. B. Eckel in Cass County. Analyses by J. J. Fahey, 

record D-375.

WW. Fresh greensand, Surratt tract, 4J4 miles north of Linden, on east bank 

of Bowman Creek.

XX. Oxidized greensand, same locality.

YY. Fresh greensand, west bank of Bowman Creek.

ZZ. Alunite rock or alum from Toyah, Reeves County. Analysis by W. B. 

Hicks, record 3168.
80 ANALYSES OF HOCKS AND MINERALS, 1914-36

SiOj.. ...............

AliOi................

Fe2 03 _. ..............

FeO_. ...............

MgO. ....... ... .....

CaO. .............. ..

Na2 0.... ............

KjO.. ...............

HjO.. ...............

WW

28.67

16.80

8.41

20.74

1.55

AK

.03

.70

11.76

XX

39.10

23.69

20.06

.58

.02

.10

.79

14.65

YY

27.21

18.87

9.32

18.55

1.49

OQ

.11

.43

13.12

ZZ

5.79

23.90

2.01

4.54

40.06

TiOj..... ........ ....

COi.. ....... ........

PiOi........... ...

MnO. ....... ........

SO3 

C.... . ............

WW

0.30

10.03

.25

.11

C)

99.80

XX

0.41

.02

.26

.11

0)

99.79

YY

0.42

9.85

.31

.12

0)

100. 18

ZZ

23.70

88.77

i Present.

AAA, BBB. Two rocks from Terlingua, associated with mercury ore, collected 

by C. P. Ross. Analyses by J. J. Fahey, record D-437.

AAA. Fresh argillaceous limestone east of Olivas winze, 50-foot level, Mariposa 

mine.

BBB. Alteration product of AAA, called "jaboncillo", from portal of tunnel 5, 

Mariposa mine.

SiOj.. .........

AljOn... 

FejOa . 

FeO. ..........

TiOj... ........

AAA

39.76

14.29

1.79

1 7O

.60

BBB

63.10

20.84

6.30

.14

.63

CaO...-. ..

MgO.... 

N&iO. .........

K2O. ..........

HjO. 

AAA

17.49

1.30

.42

1 39

5.46

BBB

0.02

.02

.36

1.00

7.87

COi. .. 

Hg... .... -

Cl. ............

AAA

15.85

.05

100. 06

BBB

0.08

.17

100. 53

UTAH

A-D. Oxidized silver, lead, and bismuth ores from the Tintic district, collected 

and described by Lindgren and Loughlin in Prof. Paper 107, 1919. Analyses by 

R. C. Wells, record 2990.

A. Gemini mine, level 19. Siliceous material covered by fine soft yellow 

powder.

B. Victoria mine. Contains bismutite.

C, D. Eagle and Blue Ball mine, 1,200-foot level.

Insoluble in HNO3 _____________

Soluble: 

COi.... ..............................

Cl._. ...... ....... ._._-.-.-.--. ..

PjOs . . . ....

Cu...... .... .. . ._.

Ag.. ................. .... ..........

PbO. . 

FeaOa -- --- --- 

CaO......... .........................

MgO. .......................... ......

BijOs- ----------- __ ----.--.-.......

SOs .. 

A

82.96

.22

.41

.29

.58

8.24

.20

Trace

.58

98.42

B

66.10

2.48

.05

4.15

.31

.92

.76

18.07

.58

96.99

C

5

fiO

81.83

.71

1.68

3.26

2.72

.44

2.50

.95?

99 12

D

2.62

59.87

2.15

2.16

None

1.44

12.25

1.72

1.26

None

9.07

.41

92.95

E

3.55

82.15

.27

Trace

None

None

None

4.04

.40

.22

None

None?

None

90.63

E, F. Uraniferous asphaltite, collected by F. L. Hess from Temple Mountain, 

San Rafael Swell. Analyses by W. T. Schaller, record C-325.

E. Lower part of fLa Plata sandstone, southwest side of "Temple", Temple 

Rock, 45 miles southwest of Green River.

F. Lower Cowboy claim, Chemical Products Co., south Temple Wash, 42 

miles southwest of Green River.
OEES AND GANGUE MATERIAL 81

Volatile matter i... ______ .

U . ... ... ....... ..... .......

V.. ................... ... . .

E

67.11

26.54

2.88

1.17

F

49.57

46.32

1.13

.23

1

S».. ........ ......... ............

As... ............................

Se.. ............... ...... .

E

1.37

None?

F

4.98

None?

' Loss on ignition; includes organic matter, water, and all volatile substances. Not corrected for any 

change in oxidation of residue.

» Kesidue insoluble in hot HC1. Probably largely sand grains. 

' Determined by Eschka's method.

G-I. Three samples of alunite from the Marysvale district submitted by G. F. 

Loughlin. Partial analyses by E. P. Henderson, record C-590.

J-N. Five samples from Homer McCarty's prospect, Marysvale, collected by 

B. W. Dyer. Analyses by J. G. Fairchild, record C-1044.

0, P. Samples of alunite collected by G. F. Loughlin at Antelope Canyon, 

NWJi sec. 21 T. 26 S., 11. 4 W. Analyses by E. P. Henderson, record C-607.

M, N, and 0 are natroalunite.

SiOa ..... ....

AljOs - .... .

FeaOs....... ....

Na2 0 ........ .

K»0... ........ .....

HjO...... ......... .

SOj.............

Ti02 .... ... .....

G

38.33

27.96

1.82

19.45

87.56

H

62.20

.66

12.48

90.84

I

47.20

26.65

.76

14.32

89.93

J

0.51

2.96

K

1.37

3.71

L

0.41

2.25

M

5.13

38.17

1.68

4.72

2.04

14.80

32.37

.35

99.26

N

7.86

33.01

10.37

3.40

3.29

19 91

24.71

3.80

98.65

0

2.36

27.48

7.43

2.34

38.18

85.79

P

4.08

36.57

3.66

5.44

35.41

85.16

VIRGINIA

Iron ores collected by J. B. Eby. Analyses by J. G. Fairchild, record C-264.

A. Boons Path Iron Co., Boons Path, 700 feet from foot of slope into mine 8.

B. Boons Path Iron Co., Boons Path, composite sample from three locations in 

mine 10.

C. Interment Coal & Iron Co., Irondale, from Old Mule drift, vein 3, 500 

feet in.

D. Interment Coal & Iron Co., Irondale, from South drift, 500 feet in.

E, F. Interment Coal & Iron Co., Harvey, car sample of ore from operation 

in vein 3.

SiOj.. ...................................

AlsOa . ................................

FeaOs.. ................................. .

FeO.. ...................................

MgO... ..................................

CaO.. ...................................

SO3 . .-..-......_._.._.-. .-._... 

PsO........ ......... ......

A

11.30

.19

62.79

4.23

2.27

7.12

' .08

.66

B

14.47

3.18

55.55

4.36

2.54

8.62

.08

.50

C

18.54

4.6'0

60.48

5.59

1.03

3.48

.09

.46

D

38.01

4.92

54.06

.50

.13

Trace

.02

.30

E

29.98

4.8Q

61.14

.21

.64

.06

.63

F

31.40

3.98

00.97

.42

.20

.38

.03

.37

WASHINGTON

Rock partly replaced by manganese ore, Lake Crescent, Olympic district, 

collected by J. T. Pardee and described in Bull. 795, pp. 6-7, 13, 1928. Partial 

analyses by J. G. Fairchild, record C-777. A, rock; B, manganese ore.

MnO. .. __.._._

MgO.. ...

CaO...........

COj .._._._..

A

8.52

3

AO

31.70

24.42

B

73.88

1.10

5.49

4.35

Si<>2- ....

AhOa. ...... ...

FezOs ....

TiOs.. .........

A

11.53

6.18

7.95

.60

B

7.65

.94

P2 05 .... ....

Mn............

A

0.40

94.33

6.60

B

93.41

57.22
82 ANALYSES OF ROCKS AND MINERALS, 1914-36

WYOMING

Iron ores from the Seminoe Mountains, Carbon County, described by T. S. 

Levering in Bull. 811, pp. 230-235. 1930. Analyses by E. P. Henderson, record 

C-932.

A. Hard hematite from test pit 0.3 mile west of Iron Hill, sec. 12, T. 25 N., 

R. 86 W.

B. Hematite jasper.

C, D. Magnetite jasper.

E. Lean magnetite-hematite jasper.

F, G. Hematite jasper. All samples from the same general formation.

SiOj... __.__.._.._...__ ........

FezOa. ........................

FeO... ........................

PzOs.. ...................... ..

CaO.... ......................

A

13.32

98.25

.034

B

i 50. 06

50.57

C

50.42

26.29

18.05

.014

2.24

D

47.70

51.25

E

59.90

34.23

5.18

F

54.28

46.68

G

51.98

48.32

1 SiOa reported in samples A and B is the insoluble material after treatment with hydrochloric acid 

plus the silica that was recovered from the soluble portion.

ANALYSES OF MINERALS

In the following pages are given the analyses of over 185 minerals, 

of which the following species were first analyzed or described by 

chemists connected with the Survey: Ammonioborite, argentojarosite, 

arseniobismite, bisbeeite, brannerite, bravoite, corvusite, crandallite, 

creedite, fernandinite, gillespite, grifnthite, johannsenite, kernite, 

lorettoite, lucinite, muiasragrite, pascoite, plumbojarosite, rauvite, 

searlesite, shattuckite, sincosite, tungstenite, uvanite, and vanoxite.

Other minerals that were imperfectly described have been more 

sharply characterized and their true composition made known. 

Further, many of the analyses represent new occurrences of the 

minerals, some of them having been previously found only in other 

countries.

NATIVE ELEMENTS 

ARSENIC

Native arsenic from the Pend Oreille district, Idaho, collected by Edward 

Sampson. Analysis by R. C. Wells, record C-599.

As (by difference). ..-. 95.7

. 100. o 

Specific gravity at 25° C. 5.640

Sb... 

Fe.. 

Pb.. 

Si02

0.6 

1.5 

.6 

.1 

1.5

GOLD

A. From Boss mine, Yellow Pine district, Nev. Described by Adolph Knopf 

in Bull. 620, p. 8, 1916. Analysis by R. C. Wells.

B. Native gold from Grass Valley, Calif., collected by W. D. Johnston, Jr. 

Analysis by E. T. Erickson, record D-206.

C-D. From Battle Branch mine, Dahlonega, Ga., collected by Charles Park, 

Jr. Determination of fineness by E. T. Erickson, record D-417. C, lower 

level; D, upper level.

Au........ ...........

AIT

Ft...................

A

97.8

2

0

B

84.37

11.56

C

74.28

D

90.89

A

100.00

B

4.07

100. 00

C D
NATIVE ELEMENTS 83

LEAD

Sample from Happy Creek, Iditarod district, Alaska, collected by J. B. 

Mertie, Jr. Analysis by E. T. Erickson, record D-295.

Main constituent, Pb.

Also present, Sb.

Traces, As and Cu.

Absent, Se, Oe, Ag, Oa, Au, Ni, Co, Zn, Cd, Te, Bi, Sn. and Tl.

PLATINUM

A, B. Specimens of platinum from Oregon, collected by J. T. Pardee. Qualitative spectrographic analysis by George Steiger, record D-134. A, from 

Esterly mine, Waldo district; B, from Pioneer mine, Coos County.

Pt..... ........................ .

Ir...... .........................

Os.. .........................

Pd....... ........... ............

Rh. ............................

Eu.............................

A

None........................ ...

B

C-F. Samples collected in Alaska by J. B. Mertie, Jr. 

Wells. C, D, record 3214; E, F, record 3165. 

C. Concentrate from Kodiak Island. 

D. Peters Creek, Susitna Valley. 

E. Boob Creek, Mount Hurst district. 

F. Dime Creek, Koyuk district.

Analyses by R. C.

SiOa, etc... ...... ....

IrOs..................

Pt. ..................

Ir....... .............

Fe. ...............

Pb...... ........... ..

Au. - .............

C

1.2'

26.9

6.1

.1

55.3

2.4

6.4

.3

D

1.0

32.0

9.1

.9

47.3

2.2

5 9

1.5

E

j 0.6

83.4

.4

9

0

F

3.4

71.5

3.8

6.1

1.4

9.5

Rh. .................

Ru. ......... ........

Pd.... ...............

Cu...... .............

Ni...................

Zn+ Ag...... ........

Specific gravity.. ....

C

0.7

.1

.6

.08

Trace

100. 18

17.2

D

0.5

Trace

.1

.03

Trace

99.83

18.1

E

0.3

.3

94.8

F

O n

.9

TrnnA

.6

98.1

SULPHUR

A-G collected from three volcanoes on the Alaska Peninsula by A. G. Maddren 

and described in Bull. 692, pp. 283-398, 1919. Analyses by R. C. Wells, record 

3216.

A-C. High-grade sulphur, Makushin Volcano.

D-E. Earthy portion, same locality.

F. Akun Island.

G. Morainic material from Stepovak Bay.

H-J. From Jemez Canyon, N. Mex., submitted by G. R. Mansfield. Analyses 

by B. Salkover, record 3219.

s. .......... .......

A

99.0

B

88.3

C

86.3

D

29.8

E

13.8

F.

55.5

G

37.6

H

38.55

I

21.17

J

32.40
84 ANALYSES OF ROCKS AND MINERALS, 1914-36

SULPHIDES, ARSENIDES, AND ANTIMONIDES (INCLUDING SULPHO-SALTS)

ALASKAITE

A, B. Specimen from Colorado, submitted by M. N. Short. Analyses by 

J. G. Fairchild, record C-1125. A, as analyzed; B, after deducting insoluble 

and FeS2 .

Pb 

Bi 

A(T

Cu 

Fe-- 

A

12.4

45.0

9

C

1.3

5.4

B

15.4

55.3

11.7

1.6

S ....

A

19.2

7.3

100.1

B

16.0

100.0

ARSENOPYRITE

Specimen from Jachymov, Bohemia (Czechoslovakia). 

Palmer, record 2911.

Analysis by Chase

Fe. ........ ... 34.30

As.-----.- . 45.51

S - - . 19.75

BORNITE

From Virgilina, Va. Analysis by Chase Palmer, record 3002.

Cu

Fe. 

S 

BRAVOITE

99.56

62.50

11.64

25.15

99.29

From Spirit Mountain, Alaska, collected by R. M. Overbeck, as an unknown 

nickel mineral; described in Bull. 712, pp. 94-98, 1920. Analysis by W. T. 

Schaller, record 3241.

Insoluble in aqua regia..-. __ .... _ .... 1.2

Soluble in HC1:

Cu .2

Fe...- 9.8

Ni 3.2

Insoluble in HC1:

Cu 0.5

Fe...... 18.6

Ni........... .................. 16.4

S (by difference). .... ... ... 50.1

Mn, Zn, Co, As absent.

CHALMERSITE

From Threemen Mining Co., Landlocked Bay, Prince William Sound, Alaska. 

Impure; mixed with pyrrhotite and other sulphides. Collected by B. L. Johnson and later described, with a new analysis by E. T. Alien, in Econ. Geology,

vol. 12, p. 519, 1917. Preliminary analysis by R. C. Wells, record 2898.

S 

Fe.

Cu 

Pb. 

Zn.

ENARGITE

35.67

46.48

16.57

1.30

.38

100. 40

Specimen from Yankee Girl mine, Ouray, Colo. Analysis by Chase Palmer, 

record 2911.

Cu 

Fe. 

As.

GALENA

45.37

1.55

17.00

31.14

95.06

Silver- and bismuth-bearing variety from Leadville, Colo., submitted by 

E. P. Chapman and described in Econ. Geology, vol. 28, p. 678, 1933. Analysis 

by R. E. Stevens, record D-I59.

Pb... 

Aff I?:.::::::::::::::::::::

Sb... .... ... ... .

Cu- ...... .

..... .... 63.90

.... 5.76

 ... ... ... . 11.80

 1.50

... .... . .23

Fe. ....

Zn......... ......... ....

S .... 

 .... ........ 1.21

 . .... .58

 . 14.44

99.42
SULPHIDES, ARSENIDES, AND ANTIMONIDES 85

GERSDOHFFITE

From Chatham, Middlesex County, Conn., submitted by M. N. Short. Analysis by J. G. Fairchild, record C-1125.

As............. .........

Ni..... .......... ........

Co.......................

Fe... .

Sb..... ................ ..

Bi?.. ...................

.................... 34.9

.................... 31.6

.................... .7

.... . ......... 3.9

.................... 9.1

.._.- ._..-..-..- .4

Cu.. ...... ...... ......... .

S- . .................. 17.1

97.7

GLAUCODOT

From Cobalt, Ontario. Submitted by F. F. Osborne and described in Econ. 

Geology, vol. 24, p. 728, 1929. Analysis by J. G. Fairchild, record C-1060.

Co.

Ni.. 

Fe..

20.08 

6.35 

'5.82

As............................ ........... 36.20

S-.......................................... 15.47

CaO...... ............................... 4.65

MgO....................................... 2.35

CO2 (calculated)..........-................. 6.23

Insoluble-.......-.---..-..--.....-......... 3.84

-100.99

MAUCHERITE

Three analyses by Chase Palmer, record 2910.

A. Typical maucherite, Thuringia.

B. "Temiskamite", Elk Lake, Cobalt district, Ontario, from T. L. Walker.

C. Supposed chloanthite, Annivierthal, Switzerland.

Ni.............. ..........

Co.. .................... .

Fe....... ............. ....

Bi... .....................

S.... .....................

A

48.80

1.32

04

.27

.05

B

47.69

2.03

1.99

.87

C

47.55

1.24

.15

2.55

.42

As..... ...................

A

48.50

.81

99.79

B

46.59

.64

99.81

C

47.05

.93

00 CO

PYRITE

A, B. Two specimens from North Carolina, collected by C. S. Ross. Analysis 

by George Steiger, record 3206. A, Oliver pyrite mine, k% miles south of Crown; 

B, \% miles east of Otto.

S....... ..........................

Fe..... .......... ............ .

Cu...............................

A

6.59

46.49

39.92

1.38

B

4.38

33.29

45.67

.21

As.. ........................... ..

Zn. ............................ ..

Pb.... ....... ............ ........

A

2.30

.30

B

1.14

.26

C I. "Octahedral pyrite" from French Creek iron mines, Pa., collected by 

Florence Bascom. Thought to be related to an intrusive of Triassic age. Analyses by R. C. Wells, records C-427 and C-431. Other samples showed only 

traces of cobalt and small percentages of copper. Nickel appeared clearly to be 

present in D-F, with a little in G, and doubtful traces in C and H.

Co........ ....................

Cu.. ..........................

As....... ...................

C

Trace

0.03

D

Trace

0.10

E

0)

0.80

F

(2)

1.0

Q

Trace

0.10

H

0.03

1.2

I

0.19

15.30

.04

1 Very doubtful trace.

8 Slightly more than a trace.

J. Pyrite, Saul's shaft, 4 miles west of Estabrook, Converse County, Wyo. 

Analysis by R. C. Wells, record 2958, gave Cu, 0.012 percent.
86 ANALYSES OF ROCKS AND MINERALS, 1914-36

PYRRHOTITE

A. From Spirit Mountain, Alaska, collected by R. M. Overbeck and described 

in Bull. 712, p. 97, 1920. Analysis by W. T. Schaller, record 3241.

B. From Three Cripples mine, near Estabrook, Wyo. Analysis by R. C. Wells, 

record 2058.

Insoluble in aqua regia. ...........

Soluble in HC1:

Cu . ..... ........

Fe...... ...... ................

NL. . . __

Co... ....... ............

A

O n

.3

53.2

2.2

None

B

28.38

.23

41.80

Trace

Cu .

Fe. ...........................

Ni. ...........................

A

0.3

.9

N"on6

42.2

B

SIEGENITE

From La Motte mine of American Lead Co., Madison County, Mo. Analysis 

by J. G. Fairchild, record C-1070. The sample was considered a mixture of 

siegenite, chalcopyrite, galena, and insoluble in the proportions of 40, 38, 10, 

and 12, respectively. Discussed by M. N. Short and E. V. Shannon, Am. Mineralogist, vol. 15, pp. 1-22, 1930.

Pb..................................... 9.40

Cu...... .............. ............... 13.10

Fe..___-....--....--.-..---.-.-...-....... 15.17

Co......................................... 8.72

Ni........ . ... 11. 27

30.57

Insoluble......___.___________ 11. i

100.11

SKUTTERUDITE

From Schneeberg, Germany, submitted by M. N. Short. 

Fairchild, record C-1125.

Analysis by J. G.

As-... .- 75.4

Ni. ---. ... ............ 15.2

Co..._-. --- -----.-----.__._.. 4.5

Fe. . 3.5

Sb.... _--- _- - -_--. ..._..-. None

Bi ?......_ None

Cu.. 0.7

S.___.___..._._______.____ None

Insoluble...--.........---....__.____-- None

9.3

SMAITITE

A. From Horace Porter mine, Gunnison County, Colo., submitted by M. N. 

Short. Analysis by J. G. Fairchild, record C-1077.

B. From Schneeberg, Saxony, submitted by M. N. Short. Analysis by 

J. J. Fahey, record C-1121.

As. 

Co Ni. 

Fe....... 

A

75.30

10.98

5.82

B

63.42

15.83

3.69

Bi..... ......... 

A

1.44

98.68

B

0.86

.32

99.19

SPHALERITE

Sample collected by C. S. Ross near Spruce Pine, N. C. Analysis by J. G. 

Fairchild, record D-390.

Insoluble__________._______ 0.27

Soluble:

Zn.. ..... ....... ....... 59.34

Fe... ....... 6.16

Cd.. .23

Mn.._. --.----....--....-.-..--..-...... .05

Cu... . . . . ___ None

Soluble Continued.

Pb.......-.-..-...-.--.---.-.---...-_ None

S. . 34.11

100.16

From Bonanza mine, Colorado, purified by M. N. Short. 

Henderson, record C-1014, on 0.31 gram.

Specific gravity.._. ___........__ 4,070

TENNANTITE

Analysis by E. P.

Sb............._--...--....-......--.-.... 12.85

As. 18.62

Cu..... 35.49

Fe.... . ... ....... 5.93

Zn....... ... 5.29

Pb. - _ Trace

Ag, not determined, but qualitatively found 

present.
CHLORIDES AND FLUORIDES 87

TETRAHEDRITE

A. From Tintic Standard mine, Utah, submitted by G. F. Loughlin. Analysis 

by R. C. Wells, record C-595.

B. From Park City district, Utah.

C. From Little Cottonwood district, Utah. B, C, partial analyses by R. C. 

Wells, record 2901.

Gar>gue _ _______ ..

S... .................. ....

As........................

Sb . .............. ......

Cu. ......................

Fe........ ................

A

3.02

24.19

4.50

14.30

32.04

4.62

B

C)

C

C)

Zn._... ....... ............

Pb. ......................

A cr

A

3.86

11.41

.92

98.86

B C

6.24

TYflOA

i Present.

TUNGSTENITE

Collected by J. J. Beeson from Emma mine, Little Cottonwood district, Salt 

Lake County, Utah. Described by Wells and Butler, Washington Acad. Sci. 

Jour., vol. 7, p. 596, 1917. WS2 . Analysis of impure sample by R. C. Wells, 

record 3188.

w. .............

S. ..............

Fe... ...........

Zn .......

Mn.... .........

Ni... ...........

........... 44.7

........... 29.1

........... 8.9

........... .4

........... .6

........... .3

Pb..... ...... ....

As ............

Sb ._._.. ......

Cu...... .........

A cr

SiO?... . .........

.......... 4.1

.......... 1.0

.......... .8

.......... 1.3

.......... .4

...... __ .3

HzO. ................

SOs ...............

...... 0.7

...... 7.3

100.0

TELLURIDES

TETRADYMITE

A, B. From Hachita, N. Mex. Analysis by E. P. Henderson on 0.6 gram 

of selected material, record C-791. A, sample; B, recalculated for mineral.

C. From Whitehorn, Colo. Purified and submitted by M. N. Short. Analysis 

by E. P. Henderson, record C-922.

Te......... ...............

S................ .........

Se . 

Bi..._ ....................

A

3.66

43.66

fiQ

50.94

B

45.33 '.71

52.90

C

46.87

9Q

Trace

52.77

Fe... ..... ......... .......

Mg....... ................

A

0.50

Trace

99. 45

B

0.52

Trace

99.46

C

Trace

99.93

CHLORIDES AND FLUORIDES

CARNALLITE

A. From a depth of 3,150 feet in an oil well 7 miles west of Thompson, Utah. 

Analysis by R. K. Bailey, record C-549. Identified optically by M. N. Short.

B. From Government well 1, NW% sec. 13, T. 17 S., R. 31 E., Eddy County, 

N. Mex., depth 933 feet. Analysis by J. J. Fahey, record C-998.

Mg.. ...... .................. .....

Na....... .... .... ........

K......... ........... .......... 

A

8.8

13.9

B

0.04

8.80

14.07

HjO .......

01.-............. ...... ..-.

A

39.6

37.7

100.0

B

38.38

38.32

99.61

CREEDITE

From Wagon Wheel Gap, Colo. Collected by E. S. Larsen and described by 

Larsen and Wells, Nat. Acad. Sci. Proc., vol. 2, p. 360, 1916. Analysis by R. C. 

Wells, record 3069. R. E. Stevens found 30.96 percent of fluorine nephelometrically.

HjO-. ............................... 0.72

HsO+.... 11.08

Al............. ..................- 11.58

Ca......................................... 23.98

SOi.. -- - 18.32

71413 37 7

0 (calculated)........-..--........-.-..... 3.97

F (calculated)-.....----......-...- -.. 30.35

100.00 

Specific gravity.........-..--.-...-.-...- 2.730
88 ANALYSES OF ROCKS AND MINEEALS, 1914-36

GEARKSUTITE

A. From Wagon Wheel Gap, Colo., described by Larsen and Wells, Nat. 

Acad. Sci. Proc., vol 2, p. 360, 1916. Analysis by R. C. Wells, record 3064. 

R. E. Stevens found 42.30 percent of fluorine nephelometrically;

B. Between Hot Springs and Warm Springs, Va., about 1 mile north of Hot 

Springs. Collected and analyzed by E. P. Henderson, record C-1035.

H5O- ~

H2 0+ -.----- ..

AL. .......................... ....

Ca .................

Mg.. ......................... ....

Fe

A

0.44

15.20

15.11

22.41

B

} 15. 52

15.06

22.15

Na ... .- ........ .......

K... ............................ ..

0. ................................

F.. ...............................

A

0.04

.07

5.09

41.00

99.36

B

0.20

.05

HAUTE

A-B. From Cardona, Spain, collected by H. S. Gale. Analysis by E. T. 

Erickson, record 3250. A, Salmon-colored; B, banded.

C. Impure sample collected by 0. B. Hopkins, Sinclair Oil & Gas Co.'s Schallert No. 1 well, Duval County, Tex. A composite of 15 samples. Partial 

analysis by B. Salkover, record 3183.

K.. ........... ....... .

Na...--. . .... .... .. 

Ca.. .....................

Mg... .

A

0.12

39.00

.08

.03

B

0.10

37.98

.02

C

0.63

Trare

30.89

Fe..-. .

Cl ........................

S04 . . .- 

A

60.27

.27

99.77

B

58.61

1.42

98.67

C

0.48

13.77

H2O undetermined.

KAINITE

From McNutt well no. 1, sec. 4, T. 21 S., R. 30 E., Eddy County, N. Mex. 

Analysis by J. J. Fahey, record C-1039.

K.... .- ......................... 13.30

Na.... -......-.-..- 

MgO .. 

1.03

16.72

Cl-....-. - ............. 13.51

SOa -. - .- _- 32.50

HSO.__...................................... 20.95

Material insoluble in HjO. _________ 1.74 

Fe, Al, and Ca.. .. ....__ None

99.75

LORETTOITE

From Loretto, Tenn., described by Wells and Larsen, Washington Acad. 

Sci. Jour., vol. 6, p. 669, 1916. Analysis by R. C. Wells, record 2984.

PbO... .-.. ... .............. 93.98

Cl......... - _ _......... 3.98

HjO._.. ._. .......... ............ .03

P20j. .- . ................ .11

CaO. .-. - ..... .. .48

MgO........ . - ..........

A12O3 ...... -.. ......-....

ZnO... - - 

.56

C02 .-.. .................................. 0.20

Insoluble in JlNOs-______________ .58

Less 0.

100.31 

. .90

.31 

"SYIVINITE1

99.41

From Amelie mine, near Mulhouse, Alsace. Mixture of halite and sylvite. 

Average samples as mined and shipped, collected by H. S. Gale. Analyses by 

E. T. Erickson, record 3249.

Cl.............. .... .... .....

SO!....--.. - ................. .

K............... ..................

Na.... ......................

Ca..--..-. . .................

A

50. 31

2.41

12. 5fi

24.71

1.19

B

50.13

2.10

17.47

21.78

.99

Mg.. .............................

A

0.03

Q1 94.

8.00

00

99.57

B

0.02

92 49

7.02

Qf>

99.81
OXIDES AND HYDROXIDES 89

SYIVITE

Crude sylvite from Markham salt dome, Texas, submitted by D. C. Barton, 

December 1924. Sylvite confirmed by M. N. Short, as first proved occurrence 

in the United States. Analysis by R. K. Bailey, record C-566.

Percent soluble in water..___.____________________________ 97.70 

KjO in sample._.___.___..._______________________.___ 15.00 

Sulphate......................................... ................................ Trace

OXIDES AND HYDROXIDES

BRAUNITE

Sample collected by D. F. Hewett at Spiller manganese mine, 12 miles northeast of Mason, Mason County, Tex. Analysis by W. T. Schaller, record D-372.

SiOa . ............................... 9.90

MnO. 66.89

FeaOs -... . 15.39

0.................. ....................... 6.27

CaO.-... .06

MgO 

HaO ... 

Insoluble.

0.19

!67

100.10

CASSITERITE

Wood tin collected by Adolph Knopf in northern Lander County, Nev. 

Described in U. S. Geol. Survey Bull. 640, pp. 131-135, 1917. Analysis by A. A; 

Chambers, record 3108.

Sn02 .. 

FejOj.

SiOa.

85. 14

13.42

1.03

.02

EjO-.......... ........................... 0.20

HjO+ ................................ .05

CHROMITE

A-F. Six samples from Cuba, collected by Albert Busch. Analyses by R. C. 

Wells, record 3229.

A. 7 miles west of Mocha, Matanzas.

B. 8 miles southeast of Punta Gorda, Oriente.

C. 0.75 mile south of Navas Bay, Oriente.

D. 9 miles northeast of Camaguey, Camaguey.

E. 3 miles northwest of Alta Gracia, Camaguey.

F. 2 miles northeast of Alta Gracia, Camaguey.

G. From Deep Creek, 22 miles south of Bend Rock, Wyo. Analysis by 

George Steiger, record 3222.

CrtO^..... ....................

SiOa... ...

Fe...... ..... .... ... .....

AliOi...... ... ..............

S .......... ...

P... ...........................

NL............. ...............

MgO ... ... ..... ... ...

CaO......... .... ... ... .....

MnO 

A

43.0

5.4

13.0

15.0

0)

B

38.1

.9

11.7

27.0

C

27.6

8.9

12.9

25.3

D

35.7

3.9

12.2

29.8

E

35.2

3.9

12.8

27.4

F

34.2

1.5

11.1

28.3

.05

O

38.82

6.45

16.62

12.50

15.42

.44

1 Present.

H-M. Six specimens from Kenai Peninsula, Alaska, collected by A. C. Gill 

and described in Bull. 712, pp. 102-123, 1920. Analyses by Chase Palmer, record 

C-107.

H. North shore of Claim Point.

I, J. Rolf mine, Claim Point.

K. Ridge northwest of Red Mountain.

L. Pass between two branches of Fish Creek, Red Mountain.

M. Ridge between Windy River and north branch of Fish Creek.

Cr,0t .. ......................

H

46.84

I

34.67

J

28.62

K

32.10

L

48.69

M

41.93
90 ANALYSES OF ROCKS AND MINERALS, 1914-36

N-S. Samples from different localities.

N. Deer Creek, Converse County, Wyo. Analysis by Chase Palmer, record 

3172.

O. Grant County, Oreg., south side of John Day River, opposite mouth of 

Cummings Creek. Collected by A. J. Collier. Analysis by R. C. Wells, record 

3176.

P. Sent to J. S. Diller by E. T. Wear, of Jolon, Calif. Analysis by R. C. 

Wells, record 3212.

Q. Deer Creek Canyon, Wyo. Determinations by George Steiger, record 3014.

R. Scotts Bar, Siskiyou County, Calif. Collected by W. D. Johnston, Jr. As 

analyzed.

S. Same after deducting 2.2 percent (Ca,Mg)SiOa assumed to be present. 

Analysis by Charles Milton, record D-340.

Si02 

AljOs- -- . -------------------

Fe2 03 - ------ -.-- -.- .- -

FeO .- 

MgO...----. -------------------

CaO. -...-- .- --------------

V2 03 

MnO...-. -- ---. .--.-

NiO ..---.--.-- ---..-_-

N

7.21

} 33. 14

44.24

0

49.6

P

54.7

Q

35.20

.56?

R

1.29

( 5.84

\ 6.40 

14.83

13.12

.26

57.92

.25

.06

99.97

S

5.97

6.54 

15.16

12.73

59.19

.25

.05

99.90

CORVUSITE

From Ponto No. 3 claim, Gypsum Valley, San Miguel County, Colo. Collected by F. L. Hess and described in Am. Mineralogist, vol. 18^ p. 195, 1933. 

Analyses by W. T. Schaller, record C-734. A, purple black; B, brownish black.

Soluble Si02 ... _____ --- __

MoOs- -------------

CaO- _ -- -... ....

UOs- ---------------------

A

0.16

.63

.16

1.85

1.16

.52

B

0.17

2.19

.18

1.70

3.12

1.98

V2 04 

V2 05 . -

A

1.69

10.26

69.00

13.52

98.95

B

0 99

10.13

65.24

14.09

QQ 7Q

DELAFOSSITE

From Pope-Shenon mine, Salmon, Idaho, collected by C. p. Ross and 

scribed in Bull. 774, 1925. Analysis by W. T. Schaller, record C-469. 

A. Analysis. 

B. Impurities deducted. 

C. Theory for Cu2O.Fe2 03 .

deCu2 0 -- _ 

FejOs---- ----- -

Soluble Si02 . ... ..-

A

27.94

30.94

.70

B

45.80

54 20

C

47.29

co 71

A

6.62

99.26

B

100. 00

C

100. 00

GAHNITE

These specimens submitted by C. S. Ross.

A. From McGruger mine. Ga. Analysis by J. J. Fahey, record D-16. 

B. From Ore Knob, N. C. Analysis by E. P. Henderson, record C-508. 

C. From Ore Knob, N. C. Analysis by J. J. Fahey, record D-25.
OXIDES AND HYDROXIDES 91

Si02 . --

ZnO --. -. -...

AhOs 

FeO'.-. ...

CaO . 

A

0.50

35.55

54. 00

7.41

B

1.60

38.40

46.55

C

0.14

34.47

55.15

7 QQ

Non6

TiOj... . 

MnO.... ------------

MgO. .... .... ... .

A

3.06

100. 58

B

0.61

5.84

99.69

C

2.78

99.87

' Total iron as FeO.

HAUSMANNITE

A-B. From W. T. Gray mine, Batesville district, Ark., collected by H. D. 

Miser. Analyses by J. G. Fairchild, records 3251 and 3253.

C-E. From Olympic Peninsula, Wash., collected by J. T. Pardee. Analyses by 

E. P. Henderson, record C-752, 765, and 771. C, magnetic; D and E, nonmagnetic.

SiOs ........ ...

MnO........ ..........................

Excess O --. ---.--. --_-..._..._.

H2 0. .....................................

(Al,Fe)a03~ . .... -

BaO .-...- - - . . 

CaO-................. ................

MgO. ....................................

A

91.38

7.78

.62

.26

Trace

Trace

100. 04

B

0.10

90.40

8.87

1.03

.48

Trace

100. 88

4.778

C

48. 90

3.6

11.05

D

84.2

8.44

1.08

E

3.04

86.40

6.47

1.16

.76

1.28

99.11

HEMATITE

From Tullock Creek coal field, Mont. Collected by G. S. Rogers and described in Prof. Paper 108, pp. 1-10, 1918. Analysis by Chase Palmer, record 

3093.

FejOs................................................................................ 83.57

S .................................................................................. Trace

01..... -.--. -.----.-----.-_..__.-..-_-......_...........- .--. . .__... -..- Trace

HERCYNITE '

Separated from rock from Pittsylvania County, Va., submitted by T. L. Watson 

and analyzed by George Steiger, record D-262. Association described in 

Washington Acad. Sci. Jour., vol. 8, pp. 665-670, 1918.

MgOTi02 .SiO2 ...................................... O.S4

AltOt........................................ 53.56

FezOs ----------- - . 10. 26

FeO.-.-.--.-------.--.-..__.............. 24.78

HEX AERO LITE

From Leadville, Colo. Analysis by Chase Palmer, record 2973.

7,aO................................................................................... 37.66

MnzOa ....................................................................... 54.63

FeiOi. .....-...-..-........-......................... ............................. .67

SiOt.................................................................................... 2.91

HzO . . 3.78

.68

100.00

LEUCOXENE

9.65

A hydrous titanium mineral collected in Saline County, Ark., by M. N. 

Bramlette is provisionally classed as leucoxene. Analysis by Charles Milton, 

record D-439. Some gibbsite and a little magnetite which could not be removed 

with the electromagnet were identified under the microscope.

TiOz.. .......... .... . . .. 77.24

AhOs _-_.-.-----._.-- _ ---. _ .. 6.73

...... ............................... 4.83

.93 

S\Oi......... ................................ .84

HjO-... . . 2.07

T{iO+. ..................................... 7.57

CaO..... .....-. .......... __ ......... None

MgO. ...... .......... _ ... . ..... Trace

 

100.21
92 ANALYSES OF KOCKS AND MINERALS, 1914-36

IIMONITE

A-B. From North Carolina, collected by W. S. Bayley. Analyses by J. G. 

Fairchild, record C-376. A, from near Coalville; B, 'from Linville Mountain, 

near Avery.

C. From Dragon iron mine, Tintic, Utah, described in Prof. Paper 107, 1919. 

Analysis by George Steiger, record D-261.

SiO2 . ............. .....

AhO-.... ................

FejOs ............ ......

FeO........ ..............

MgO.. ...................

CaO.......... ............

EM)-.... ................

H2 0+._... ...............

A

83.35

89

11.32

B

1.40

.61

83.40

QO

11.22

C

3.25

.76

80.02

.24

.30

.42

1.71

12.30

TiOa-- .... 

P2 05 

S03 ....................

MnO......... ............

S... ......................

BaO...... ................

A B

0.05

1.95

.12

Trace

99.67

0

0.78

.47

Trace

.10

100. 35

MAGNETITE

A-D. Four samples from North Carolina, collected by W. S. Bayley. Analyses 

by J. G. Fairchild, record 3258.

A. Cranberry mine, Cranberry.

B. Peg Leg mine on Doe River, 1 mile south of Roan Mountain station.

C. Lansing mine, Ashe County.

D. Lansing mine, Helton Creek.

E. Magnetic iron ore from Conejos quadrangle, Colo., collected by E. S. 

Larsen. Analysis by J. G. Fairchild, record C-241.

Si02 ......

AK>3 -- .

FezOa. -.._._

FeO.........

MgO........

CaO........

Na2 0. ......

K2 0...._._ __

H2O-.._.___

A

14.28

1.08

50.35

28.30

.62

5.18

.37

TVona

.04

B

4.67

.58

62.90

28.90

.33

1.04

.22

TVpnft

.06

C

5.73

1.70

45.51

26.20

3.99

.06

D

2.33

2.38

60.42

24.80

3.37

1.14

.26

.04

E

3.54

1.45

P5. 15

27.61

.24

.22

.13

H2 0+.......

Ti02 . ... .

CO2 ...

P3 06 . ....

SO*.. .......

MnO.......

A

0.17

.12

Trace

.18

100. 69

B

0.38

.80

.23

.16

100. 27

C

2.81

12.96

Trace

.34

.39

99.69

D

0.83

1.97

.11

3.01

100.66

E

0.33

.50

.20

.37

99.74

PSIIOMEIANE

From Tucson, Ariz., collected by D. F. Hewett. 

record D-208.

Analysis by Charles Milton,

Insoluble.._________ 8.35

SiO2 (soluble).__.__... .90

AlzOa .................. .55

FezOs..................... 3.27

MgO........_.......... Trace

CaO..................._ .05

Na2 0..................... .42

K2O.._................... 0.11

H2O-__.................. .49

H2 0+.................... 3.78

Ti02 ...................... Trace

P2 06 ...._ _ .05

MnO...-.__.. ____ 6.70

BaO...................... 14.40

CuO _.____..__ 0.25

PbO...................... .32

Mn02 . ................. 59.65

Specific gravity_____ 4.21

PYROIUSITE

A. Sample containing cobalt and nickel collected from a prospect near Coble, 

Hickman County, Tenn. Analysis by E. P. Henderson, record C-631.

B. Composite of 50 samples from Caddo Gap and DeQueen quadrangles, Ark., 

described by Miser and Purdue in Bull. 808, 1929. Analysis by George Steiger, 

record 3141.

C. From Puerto Rico. Analysis by George Steiger, record 3143.

A12 03 ..................

Fe2 03 ..................

CoO...._ ............... ..

NiO...... ................

BaO..... . ................

H2 0.._. ..................

P?05 .........- 

A

6.05

52.93

21.15

.88

.81

1.48

.11

14. 4'0

.20

B

5.17

64.60

4.80

9.62

.81

C

0.66

73.9

.77

.11

Cu....... ........... ..

Li. .. .

F..... ....................

CaO......................

S03 .................. ..

CO!. ...... 

A

Trace

Trace

None

None

None

98.01

B

1.42

.05

C

0.17

.08
CARBONATES 93

SPINEL

Associated with serendibite, Warren County, N. Y., collected by E. S. Larsen. 

Partial analysis by W. T. Schaller, record C-733.

Insoluble__ . _____________ 0.86 

SiOj......................................... 4.23

AlsOj... . ............................. 60.63

FeO. .............................. 4. 57

CaO.. 

MgO.

0.29

24.24

04.82

TENORITE

Impure material from Tintic district, Utah, 

record 3074.

Analysis by W. T. Schaller,

CuO............................-_ -.- - .- 80.12

HjO .-. - ......... -..... ..-............................... ..-......-. 4.02

PaOj....... -- .-... -.-.-...-..-. ..-..........-. 1.44

Insoluble................. ......................._.......... . . 2.94

X(?).................................................................................. 11.48

VANOXITE

100.00

From Jo Dandy claim, Paradox Valley, 58 miles west of Placerville, Colo. 

Submitted by A. 0. Egbert. Described by F. L. Hess in Bull. 750, pp. 63-67, 

1925. Analyses by W. T. Schaller, record C-314-a.

A. As received.

B. With impurities, quartz, gypsum, carnotite, ferganite, uvanite, pyrite, 

roscoelite, deducted.

C. Different sample as received.

D. With impurities deducted.

Va04 .. ............

V,08.. 

UOs ~

PaOs -

Fej03 .... 

HjO-. ..............

H8 0+... ......

CaO......... .... .

A

11.93

6.25

1.55

.11

.94

[17.37J

3.78

B

61.60

27.03

21.37

.......

C

22.56

13.59

[2.581

{

O ID

6.15

.40

D

49.66

29.91

6

QQ

13.54

S03 ----- -

Se.. .................

A

0.11

6.26

61.51

.19

100.00

B

100.00

0

0.24

51.35

100.00

D

100.00

WAD

From Suiter, Va., collected by H. D. Miser. 

C-240.

Analysis by J. G. Fairchild, record

MnO. .............................................................................. 67.10

Available O....... ................................................................. 13.41

HaO- ..-.. ...........1.......................................................... 1.04

H8 0+ - .. - - .. ... . . -.. 7.60

BaO.., ............................................................................. C)

1 Present.

CARBONATES

ANKERITE

9.15

A. From North Star mine, Grass Valley, Calif., collected by W. D. Johnston, 

Jr. Analysis by J. G. Fairchild, record D-115.

B. From Latouche .Island, Alaska. Partial analysis by Chase Palmer, with 

carbon dioxide calculated, record 3174.

C. From Fontana copper deposit, N. C., collected by C. S. Ross. Analysis 

by E. P. Henderson, record C-701.

CaO........ ... ........

MgO ......... ........

FeO. .. .... ... ....

MnO....... ..............

A

1.46

30.64

11.38

.31

B

30.52

10.93

10 22

1.32

C

1.10

27.26

12.99

1 9 7Q

1.28

CO........... ...

HsO. ......... .....

A

43.30

.40

.32

100.33

B

43.02

96.01

C

44.19

99.60
94 ANALYSES OF ROCKS AND MINERALS, 1914-36

CAICITE

[A few analyses of calcite are also given under "Ores and gangae materials".]

A-G. Seven samples collected by C. S. Ross. Analyses A-E by E. P. Henderson, record C-701; F-G by J. G. Fairchild, record C-731.

A. From Ducktown, Tenn., 1,200 level, Burra Burra mine, .coarse rhombs 

associated with ore.

B. Burra Burra dump.

C. From vein cutting hornblende-epidote rock, Cranberry, N. C. v

D. Associated with ore, Cullowhee, N. C.

E. From quartz vein at 1,400-foot level, Burra Burra mine.

F. Associated with ore and barite, Peach Bottom mine, N. C.

G. Associated with gold-bearing quartz veins, Columbia gold mine, near 

Thompson, Ga.

Insoluble in HCl ..............

FeO... -_

MnO... .......................

CaO...... .....................

MgO 

BaO..__. ......................

A

0.20

1.76

Trace

53.40

B

0.80

1. 14

.19

54.14

.15

C

0. 1C

.88

.37

55.46

.20

D

0.20

.77

Trace

55.78

.46

E

: None

i 1.73

1.38

53.20

.45

(2 )

F

8.98

1.36

.55

49.22

.42

.24

G

5.62

None

.17

52.80

Trace? (2)

1 From total Fe.

2 Undetermined.

H-K. Manganiferous calcite. H, I, collected by C. S. Ross; analyses by 

J. J. Fahey, record C-1054. J, K, collected by D. F. Hewett; determinations 

by J. G. Fairchild, record C-1021.

H. Near Sparta, N. C.

I. Kings Mountain, N. C.

J. Water Canyon, Socorro County, N. Mex. Vein calcite.

K. Aguila, Maricopa County, Ariz. Vein calcite.

FeO.. ..............

MgO.. .............

CaO . 

MnO...............

H

a OK

.05

.82

31.54

41 92

26.02

I

2.48

.04

.64

53. 38

43.11

.67

J

91.89

K

1.14

BaO.... ...... ......

CuO 

ZnO. ............ ...

PbO... .............

H

100. 60

I

100. 32

J

3.46

.13

.02

K

0.13

L. "Biaxial calcite" from Ore Knob, N. C., associated with pyrrhotite and 

copper minerals. Collected by C. S. Ross. Analysis by J. H. Fairchild, record 

C-494.

CaO......................................... 48.68 Fe.jO^^...................................... 3.42

MgO 1.23 C02 (calculated) 42.31

MnO .-. 4.32 Insoluble . .85

SrO.................... ............. . 17

BaO None

PbO....................... .... None

1 Calculated from total Fe. May include traces of AUOj.

M. Pisolite deposited from hot springs at the terraces, San Antonio, Tex. 

Specimen submitted by Alexander Deussen. Analysis by W. C. Wheeler, 

record 3049.

A.Wz... ..................

FejOs

MeO ..................

.._ . . 1.88

....... ....-.... .36

27

.................. .76

CaO .................... .... .... .... . 52.89

-.. ...... 43.73

99.89

CERUSITE

From the Colorado mine, Tintic, Utah. 

Analysis by R. C. Wells, record 2988.

Collected by Waldemar Lindgren.

Insoluble in HNOs. __---. ....... .._. 8.39

Cl...-. . .. - . .02

CO! -- 14.43

PbO . ... - - 72.85

 -58

sos........ ............................. i. in

Ca, Mg........ ------- -.-..---.-___--.- None

97.4(5
CARBONATES 95

HYDROMAGNESITE

From Paradise Range, Nye County, Nev., collected by Eugene Callaghan 

and described in Nevada Univ. Bull., vol. 27, no. 1, pp. 7-34, 1933. Analysis 

by Charles Milton, record D-267.

MgO -................................... 42.82

COt...............:......................... 37.36

CaO .04

HjO- .......... ....-........ . .06

HSO+ 19. 26

Insoluble.

0. U» 

.07

9.70

HYDROZINCITE

From Goodsprings, Nev., collected by D. F. Hewett and described in Prof. 

Paper 162, 1931. Analysis by W. T. Schaller, record C-1056.

ZnO......................................... 72.81

CO2 _ - . . ,._. ......... 17.10

H2 0-_...................................... . 15

H2 0+. ... .-...--.. 8.86 

CaO.....................-........ ........ .40

Soluble Si02 ................................. 0.10

Insoluble.................................... . 18

99.60

MAGNESITE 

[See also under "Carbonate rocks".]

A. From Maguesite Wash, Nev., collected by W. W. Rubey. Analysis by

R. C. WeUs, record D-312.

B. Submitted by R. S. Talbot, of Spokane, Wash. Analysis by W. B. Hicks, 

record 3118.

C. From Red Mountain, Livermore, Calif. Analysis by R. C. Wells, record 

2963.

D-E. Two samples representing face cuttings near Kaolin, Clark County, 

Nev., collected by H. S. Gale. Partial analyses by W. B. Hicks, record 3063.

F. From Porterville, Calif. U. S. National Museum No. 77516. Analysis by 

Charles Milton, record D-256.

AlzOs.- --~~ -.-----_.-- - 

VetOj.. ...................... ............

FeO.. -- -.--- --

CaO. . ...................................

MgO..... ....-....... .......... ....

MnO...... ..............................

KaO...._......_._ _

NajO. ...................................

TiO2 - 

COj.... ..................................

HiO-. ..................................

H2 0+........ ............................ 

B2 08 . . ...... ......................

S03 . ... . ..... ........ ... 

A

11.27

1.62

.31

6.59

35.98

.63

.72

.06

38.80

1.90

2.17

.21

100. 26

B

2.66

.34

45.80

50.04

}.........

99.70

C

0.03

.07

.85

46.70

51.94

.29

99.88

D

11.12

. vo

5.36

36.72

44.15

98.33

E

11.82

5.90

36.40

43.45

98.51

F

0.09

.03

47.63

52.17

.07

99.99

RHODOCHROSITE

Two samples collected by Arthur Keith from Sevier, Tenn. 

by George Steiger, record 3227.

Partial analyses

Si02 ...... ......................

A12 03... 

F&Oi.. ...........................

A

2.42

1.50

B

9.53

4.02

2.28

MgO........ ........ ..............

CaO....... ....... ................

MnO............. ................

A

 ? fin

11. 58

33.98

B

11. 63

22.10

11.98

SIDERITE

[See also analyses under "Ores and gangue materials".]

A. From locality 5 miles south of Linden, Tex., collected by E. F. Burchard. 

Analysis by R, C. Wells, record 2997.

B. From Bigorre, France, with a little quartz. U. S. National Museum No. 

16874. Analysis by R. C. Wells, record D-104. Some magnetite was identified 

in the sample, and the calculated CC>2 takes account of this, requiring 0.76 

percent FeO.

C. From Isere, France. 'Analysis by J. G. Fairchild, record D-94.
96 ANALYSES OF ROCKS AND MINERALS, 1914-36

SiOj... ... ................

AhOa 

FejOj... .... ...........

FeO......................

MgO....... ...........

CaO.... ...............

HsOA

1.10

1.02

.40

59.42

.15

B

s on

1.70

53.60

3.70

.50

C

0.60

47.86

10.40

.40

H2 0+..._ .... ......

TiOt.. ...................

COt.. ....................

P2 06 ...................

s.... .....................

MnO......... ............

A

1.05

.04

36.54

.11

.05

.13

100. 17

B

i 36. 80

100. 20

C

'41.00

.16

100. 36

i Calculated.

STRONTIANITE

Collected by Adolph Knopf from Barstow, Calif., and described in Bull. 

660, pp. 257-264, 1918. Analyses by R. C. Wells, records 3177 and 3179.

SiOs-.. 

AhOa ..... ... ... .

CaO.. .......... ......... 

SrO ....... ...................

BaO.. _ ............... ......

A

6.40

60.99

B

5.59

1.17

1.73

5 19

55.20

C02 . .... _ .......

SOa 

TiOs .

A '

0.03

B

28.18

.28

.05

96.39

i Total Fe.

SILICATES

AIBITE

Two partial analyses of specimens from Batchellerville, N. Y., by George 

Steiger, record 3167.

NaaO. ............................................... ....... .........-.......

KjO... ... _.. ........... __. 

A

9.73

.90

B

9.27

1.19

ALLANITE

From locality 14 miles northwest of Wheatland, Wyo. Described in Am. 

Mineralogist, vol. 19, pp. 81-82, 1934. Analysis by R. C. Wells, record C-1080. 

Calculated age, 1,500 million years.

Si02 . ................. 33.64

ThOj... ..... _ 1.28

AhOs ..... . 12.16

FezOs 7.67

CejOa 14.63

(La,Di)s03 . 7.34

FeO.. ..... . 8.46

1 Test by J. J. Fahey.

MnO___..........__ 0.25

CaO 9.75

MgO-.... . 1.83

H3O...................... 2.84

Ti02 - .24

UjOj. .02

ALLOPHANE

PbO...................... 0.11

BeO.__........____iNone

100.22 

Specific gravity.. ____ 3.72

Six samples submitted by C. S. Ross. For optical and dehydration data on 

allophane see Prof. Paper 185-G, pp. 144-148, 1934, by Ross and Kerr.

A. From Laurium, Greece.

B. From Monte Vecchio, Sardinia.

C. From Dutchess County, N. Y.

D. From Morel^ead, Ky. Analyses A-D by J. J. Fahey, record D-200.

E. From Huron, Lawrence County, Ind. Analysis by J. G. Fairchild, record 

D-155.

F. From Liege, Belgium. Analysis by L. T. Richardson, record D-67.
SILICATES 97

Si02 ... ... ... ... ... ... .....

A]tOt.. ..................................

VeiOs.. ..................................

P2 05 .._ ..................................

H30-.. ...............................

H2 0+...... . .... 

CuO. ...... ...........................

ZnO. ....................................

MgO. .. ............................

CaO.. ...................................

COj... ................ ............ ...... .

SOj...... ... ..................... ........

TiOj.... .............. ...... ... ..........

Organic matter ______________

NasO. ...................................

KjO............ ..........................

A

28.60

31.66

.16

19.26

14.64

.96

2.62

.12

.20

1.20

.04

}

oo .28

99.74

B

32.30

30.41

.23

.02

16.38

14.43

1.60

4.06

.29

.02

.55

.21

.10

100.60

C

25.19

36.53

.78

.02

21.20

15.76

.02

.04

1.04

.10

100.68

D

27.61

32.29

.23

1.31

19.36

18.05

.10

.02

.72

.12

.10

99.91

E

21.26

34.95

.10

7.15

14.85

21.38

.05

99.74

F

33.96

31.12

12.84

20.28

2.26

100.46

ANAICITE

A-B. Collected by W. H. Bradley from a bed 750 feet above the base of the

Green River formation in sec. 27, T. 9 S., R. 25 E., Uintah County, Utah, and 

described in Prof. Paper 158, pp. 1-7, 1930.

A. Determinations on material of specific gravity below 2.47 separated by 

heavy solution by E. P. Henderson, record C-920.

B. Except for pyrite, bituminous material, and calcite, almost pure analcite. 

Analysis by J. G. Fairchild, record C-986. H2 0+ was determined on material 

extracted with CeEU.

C. From Aquarius Cliffs, Yavapai County, Ariz. Submitted by C. S. Ross. 

Analysis by J. G. Fairchild, record C-979.

D. Crystals coating a brecciated porphyritic rock at Terlingua, Tex., collected 

by C. P. Ross. Analysis by Charles Milton, record D-399.

SiOj.... ........... .

AljOs 

FejOs 

MgO . ......

CaO... ...... .......

Na2 0 ......... ..

K2O. ...............

H2 0-. ......... ....

H2 0+.. ............

A

55.07

25.07

B

52.54

15.78

4.54 

.63

.36

8.63

1.16

.05

8.96

C

60.61

18.03

1.01 

.05

04

10.98

1.02

.34

8.36

D

57.86

21.03

12.51

} 8.28

COi.. ..............

Bituminous mateA B

0.29

2.74

3.93

99.61

C

100.44

D

____

99.68

ANAUXITE

Two samples submitted by C. S. Ross and described in Prof. Paper 165, pp. 

161-169, 1931. Analyses by J. G. Fairchild, recprd C-993. 

A. Anauxite 1 mile west of Lancha Plana, Calif., near the Mokelumne River. 

B. From Newman pit near lone, Calif., Mokelumne River.

Si02 .. ........ ..

AljOs-- --

MgO... ........

A

52.46

32.20

B

48.80

35.18

1.24

CaO. . ..........

Na8 0. ......... .

KaO. .....- .

H2O-. .........

A

0.03

.25

O1

1.38

B

0.22

.25

.40

1.16

H2 0+.. ........

Ti02 -. . ...

A

12.07

.55

100.94

B

12.81

.61

100. 67

ANTIGORITE

From Verdiolite quarry, near Easton, Pa., collected by W. S. Bayley. 

sis by J. G. Fairchild, record C-527.

AnalySiOj... ........... 46.20

AbOa, FezOs __..._-- 5.59 

FeO.__........_...... 1.06

MgO.... ...... ...... 33.95

CaO-....__________ None

NajO.......... . 0.25

KtO....................... 4.54

H2 0...................... .24

HtO+..................... 5.72

F.......................... .0.60

OOj..................... Present

8.15
98 ANALYSES OF KOCKS AND MINERALS, 1914-36

BAVENITE

From Himalaya mine, Mesa Grande, San Diego County, Calif. Analysis by 

J. G. Fairchild, record D-66. This specimen was received by W. T. Schaller 

from E. Schernikow.

BiOi......................................... 58.40

AlaOs ------- ...-. ._.--..... 12.16

feiO^........................................ . 10

CaO......................................... 23.67

BeO. 

HsO.

2.67

2.90

BEIDELLITE

A-B. Two samples from Tremont, Miss., submitted by C. S. Ross. Analysis 

by J. J. Fahey, record C-1118. A, powder; B, lump.

C, D. Beidellite from Princesa mine, Maniquipi, Chihuahua, Mexico, submitted by C. S. Ross. Analysis by E. T. Erickson, record D-432.

S\02. ...............

AhOi... ............

Fe2 03 ............

FeO.. ..............

MgO.. .............

CaO.. ...........

KjO. ...............

A

57.96

27. 61

1.40

1.25

.70

B

54.70

28.53

1.63

.98

.58

C

43.76

27.88

6.42

Trace

1.23

on

1.18

D

49.34

22.88

2.36

1.67

2 go

NmO. ..............

H2O-. ......... ....

S"0+. .............

TiOs-.._ ............

C... ................

A

1.41

9.31

].18

B

3.16

8.94

2.41

100. 93

C

 0.30

10.59

7.67

Qfl

D

1-t. 77

E-H. Samples submitted by C. S. Ross. Analyses E, F, by J. G. Fairchild, 

record C-993; G, H by L. T. Richardson, record D-67; E, Ancon, Panama; 

F, Fairview, Utah; G, H, Cornwall, England.

I. From a tunnel near Twin Falls, Idaho. Analysis by J. J. Fahey, record 

D-124.

J. Beidellite gouge from Flathead mine, Montana, collected by P. J. Shenon. 

Analysis by J. G. Fairchild, record D-92.

SiOz 

AljOj. ------ ---- --

FezOj... 

FeO ...

MgO 

CaO... ... ... ... ....

NajO . ... ... ... ... - 

KjO 

HsO-.. 

H2 0+... .....................

TiOj ........ _.. . 

BaO.. ... ... ... ... ... ... -

E

44.02

28.90

5.15

.33?

.50

.68

.17

.50

18.64

.53

99.42

F

46.04

22.60

5.48

.25

1.85

1.26

Trace

2.25

10.00

9.86

.40

99.99

G

46.66

37.81

.60

.26

1 19

/ - 19

.70

13.92

100. 14

H

45.13

35.25

2.19

.46

.42

. U£

3.86

12.24

100. 07

I

49.55

17.78

6.61

3.24

None

|

15.45

6.88

.58

100. 09

J

43.83

26.82

7.56

.61

.10

.*J

8.64

11.08

.42

.29

99.68

BEMENTITE

Samples collected from Black and White mine, Olympic Mountains, Wash., by 

J. T. Pardee. Analyses by George Steiger, records 3225 and 3261.

A. Bementite rock, described by Pardee in Bull. 725, pp. 234-236, 1922.

B. Bementite separated from same, described by Pardee, Larsen, and Steiger 

in Washington Acad. Sci. Jour., vol. 11, p. 25, 1921.

SiOz 

AKh---- -------- --------

FezOs- ------ -- - 

CaO..-. ... 

MgO... .-.- ----------

MnO... ... 

A

26.38

3.48

3.52

1 ^fi

1.31

46.57

B

39.92

1.32

4.46

41.58

FeO 

HzOH2 0+ ... . .

A

10. Q£i

98.44

B

4.15

( .49

\ 7.90

100.22
SILICATES 99

BERYL

Slightly altered material from Ouster County, S. Dak., received through F. \V. 

Horton, of the U. S. Bureau of Mines. Analysis by R. E. Stevens, record D-334. 

Probably from the Old Mike mine.

Si02 .

BeO.

Na2 0.

63.32 

.04

9.75 

20.00

J.70

LizO....................... 0.95

KjO ..... .23

RbsO._ . .09 

CszO... . .. 1.38 

CaO......._ .... None

BIOTITE

MgO. 

PaOs.. 

HaO..

0.13

.04

2.36

99.99

From locality 8 miles northwest of Ouster, S. Dak., on property of Maywood 

Chemical Co., submitted by F. L. Hess. Analysis by J. J. Fahey, R. C. Wells, 

and R. E. Stevens, record D-40. Described in Am. Mineralogist, vol. 17, p. 173, 

1932, but analysis revised in .1934.

FejOa .- 

A12 03 ~ 

TiOa. ............

FeO. ............ .....

CaO-.--.......-.....-... None

MgO...... . ....

HiO-. ...............

36.97

2 on

17.51

2.64

H Q1

8.45

.32

H2 0+ ... .

MnO - 

CrsOa 

NajO 

K2 0 ......

RbzO - .

CsjO... ... .... 

..... 2.48

... .. .22

____ . None

......... .45

.... . .65

__ .... 8.50

.... .... _ 1.46

......... 1.14

F... ... .............

Specific gravity .....

...... 3.17

101.03

..... 1.34

99. 69

..... 3.10

BISBEEITE

A. From Shattuck mine, Bisbee, Ariz., U. S. National Museum Canfield collection no. 6593.

B. Another specimen, U. S. National Museum no. R. 4874.

C. Recalculated from B, deducting 9.25 percent of malachite. Analysis A-C, 

by W. T. Schaller, record D-21.

D. An earlier analysis of bisbeeite by W. T. Schaller, record 2926.

SiOj..... ...... ...

Fe2 03 ---------- 

FeO.. .... ..... ...

CaO ... . ..........

CuO ........ ...

HaO-. ...........

A

36.71

1.31

.48

4Q 4^

14.37

B

33.33

.51

.35

7.73

C

36.93

.39

46.66

8.56

D

36.0

~"".~9

CO 1

4.9

H2 0+_ - .... ..

C02._ ..........

A

38.32

100. 64

3.05

B

7.48

M.84

100. 02

2.98

C

7.46

100. 00

2.88

D

5.4

99.3

1 Average of 4.34 and 4.40.

2 Average of 8.26 and 8.38.

s Determined by J: G. Fairchild.

CERITE

From locality 2 miles N. 45° E. of Jamestown, Boulder County, Colo., Fidelity 

Lode claim, east central part of sec. 17, T. 2 N., R. 71 W., submitted by E. N. 

Goddard and T. S. Lovering. Analysis by J. G. Fairchild, record D-405. Part 

of fluorite removed by grinding and sieving. Specific gravity, 4.653. Pb/U-f 

0.38 Th=0.130. Age calculated, 920 million years.

SiOt..................... 18.78

AhOs, Ti02 ........ ... .24

FeO.. ................ 1.17

U3 08 (U=0.435)~-... . .513

CejOj ----- 28.85

(La,Tb)a03, etc -- -. 27.20

YsCh, etc..-.-----------. 2.94

ThOa (Th=0.25) ...... .28

MnO.. --...... - 0.17

ZnO..................... None

CaO .................. 12.55

MgO-... . .16

PbO (Pb=0.069)_ .074

H2 0.-._................. .96

COi..................... 1.00

PaOo - ---------- None

F ..................... 5.94

Cl_.__________ None

B2 03,BeO.........._... None

100.827 

Less 0 = F2 ......--..---- 2.52

CHRYSOCOLIA

A. From Live Oak mine, Miami district, Ariz., collected by F. L. Ransome.

B. From Keystone Copper mine, 5 miles west of Globe, Ariz., collected by 

D. B. Sterrett. Analyses A, B by W. T. Schaller, record C-317.

C. From Emerald Isle mine, Kingman, Ariz., submitted by W. T. Schaller. 

Analysis by L. T. Richardson, record D-76.

SiOa ... 

CuO... ..... ... ...... -

FeO 

PoO

A

44.12

31.70

.68

i no

B

41.44

34.25

.30

79

C

40.30

28.90

i f\>(

MgO .

HjO-... ....................

HjO+ ....

A

0.40

97.92

B

0.31

97.09

C

0.40

1ft 09

8.38

99. 3S
100 ANALYSES OF ROCKS AND MINERALS, 1914-36

CLINOHYPERSTHENE

From Roseland, Va., collected by C. S. Ross. 

record D-196.

Analysis by J. G. Fairchild,

SiOj........... ....... 52.02

AhOj.. 2.64

FejOa ....... .55

FeO_. ........_____ 21.46

MgO............... ... .. 21.60

CaO... 

H2 0-. 

H2 0+. 

Ti02 ...

CUNOPTILOLITE

1.90 

.06 

.34 

.44

MnO. 0.16

101.17 

Specific gravity..---....- 3.496

From Dome, Ariz. Separated from bentonite by washing and removal of 

feldspar and quartz by M. N. Brainlette, and described by Brarnlette and Posnjak 

in Am. Mineralogist, vol. 18, p. 167, 1933. Analysis by J. G. Fairchild, record 

D-198.

SiOz ..... ...... .... ...

AlzOj . ....... ... .....

FejOj.. .............. ....

MgO..... ...........

OaO... ......... ...

.................... 64.30

........ _ ......... 12.78

_ ....... _ ...... .82

.................... .62

.................... 2.42

................... 3.96

KjO...._ ....... ............. _ .... 1.36

HsO-.... ......... ....... .... 4.78

HsO+ 9.50

100.54

CIINOZOISITE

From Roselaud, Va., collected by C. S. Ross. 

record D-196.

Analysis by J. G. Fairchild,

SiOj . ..__.--....------- 39.96

A1 2 03- - 30.59

FezOs 3.23

FeO.. - .60

MgO......-.. . .05

CaO..................... 23.58

(K,Na)sO_.............. .13

H2 0-................... None

H2 0+................... 2.00

TiOj..................... .05

DIC KITE

MnO..___..--.....-.- Trace

100.19

A. Sample from Cusihuiriachic, Chihuahua, Mexico, described by C. S. Ross 

in Prof. Paper 165, pp. 158-161, 1931. Analysis by J. G. Fairchild, record C-993.

B. Dickite from vertical seams on Back Bone Mountain, about 2 miles north 

of Williams, Le Flore County, Okla. Analysis by R. K. Bailey, record 3042. 

Described as "intumescent kaolinite" by Schaller and Bailey, Washington 

Acad. Sci. Jour., vol. 6, pp. 67-68, 1916.

Si02 ....... ........ ... ..... .......

AhOi..... ... ... 

FezOa .................... .

MgO.................. ..... .......

CaO. ....... ......... .............

N&tO. ............................

A

45.04

40.70

Trace

TVa^o

.22

B

46.55

38.90

HzO-. ........ ..............

HjO+.-... .......................

Ti02 .... ..........................

A

14.08

Trace

100. 04

B

} 14. 04

99.49

FELDSPAR

Primary feldspar (microcline-andesine antiperthite) from Roseland, Va., 

collected by C. S. Ross. Analysis by J. G. Fairchild, record D-189.

SiOij........................................ 61.44

AhOs 23. 47

Fe2 03 , FeO- -' . ... .20

MgO.... ....... ... .... ....... .05

CaO. . 5.00

NasO. ..... -. . .......... 5. 23

KiO........................................ 4.25

H2 0-. 

H2 0+. 

BaO 

Ti02 ._

0.30 

.20 

.19 

.10

100.26

GARNET

A-E. Collected by C. S. Ross, and described in Prof. Paper 179, p. 63, 1935- 

Analyses A-D by J. G. Fairchild, record C-890; E, by W. T. Schaller, record 

C-945. A, Ore Knob, N. C.; B, Ducktown, Tenn.; C, Monarat, Va.; D-E, 

Cullowhee, N. C.

F. Almandite collected by C. F. Park, Jr., from Battle Branch mine, Auraria, 

Ga. Analysis by R. C. Wells, record D-399.

G. Another garnet collected by C. F. Park, Jr., at Battle Branch mine. Analysis by R. E. Stevens, record D-448.
SILICATES 101

SiOa..... ........ ..............

Ala03 ..... ..................

FejOa............. ............

FeO...........................

MnO-.._._.___...... ..........

MgO..........................

CaO ........................

Ti02 __. .......................

A

38.30

20.51

.40

24.92

7.73

.40

8.30

100.56

B

37.64

20.59

.86

18.44

16.98

1.75

4.12

100.38

C

36.59

19.63

.60

11.77

19.18

1.20

8.82

97.79

D

35.62

29.58

3.43

Trace

31.50

100. 13

E

35.61

.28

29.32

3.86

.55

None

30.12

99.74

F

36.18

20.10

1.27

33.06

.39

2.09

5.62

1.26

99. 8,7

O

39.79

19.59

2.38

28.38

1.02

2.36

5.72

.88

100. 12

G-S. Garnet, mainly spessartite, collected by D. F. Hewett from the Piedmont 

crystalline belt; G-T from pegmatites, J-0 from veins, P-S disseminated. Analyses G-L by Charles Milton, M-Q by R. S. Stevens, R-S by J. J. Fahey, record 

D-398.

G. Flat Rock mine, 4 miles northwest of Spruce Pine, N. C.

H. 2.5 miles west of Spruce Pine, N. C.

I. Wheatley mine, 3 miles east of Moneta, Va.

J. Hart mine, Union Point, Ga.

K. Iron mine, West Hawley, Mass, (garnet and quartz).

L. Iron mine, West Hawley, Mass, (calculated as garnet).

M. Betts mine, West Cunningham, Mass.

N. Rankin prospect, Kings Mountain, N. C.

0. Bald Knob, N. C.

P. Gossan Lead, Va.

Q. Higdon Mountain, Macon County, N. C.

R. Beam farm, Kings Mountain district, S. C.

S. Shooting Creek, N. C.

Si02 ............. ...... .....

AljOj....... ...................

FejOa.. ...... .................

FeO...........................

MgO..........................

CaO .......... .......... ....

Ti02 .. ........................

MnO..... .....................

ZnO-.. .......................

SiOs...... ......................

AliOt. .........................

FetOz.. ........................

FeO...... ......................

MgO..... .............. ........

CaO. .................. ........

Ti02 .. ....... ..................

MnO. ........ .................

ZnO..................._. ....

G

37.56

20.90

.03

15.47

1.48

1.05

.20

23.96

100. 65

H

37.28

20.31

.17

13.52

.69

1.22

.26

26.62

100. 07

N

35.68

19.07

3.60

7.10

.91

3.30

.25

30.53

100.44

I

36.71

19.59

13.55

.18

.39

.28

28.72

99.42

O

36.03

19.25

1.81

17.85

1.25

6.54

.52

16.49

99.74

J

37.95

19.89

.84

13.43

2.16

3.48

.21

21.96

99.92

P

36.40

19.56

3.33

16.68

2.50

.5.59

.37

15.65

100.08

K

46.94

16.61

.25

11.00

1.03

3.27

.11

20.81

100. 02

Q

37.32

19.24

3.12

7.90

1.5S

8.44

.05

23.13

100.76

L

37.50

19.60

.29

12.98

1.22

3.86

.13

24.56

100. 14

R

44.23

11.52

5.62

12.06

2.90

3.04

.80

19.96

100.13

M

36.49

19.41

2.15

24.19

1.92

5.29

.69

9.69

99.83

S

36.71

16.86

3.24

31.98

1.51

3.90

.20

6.88

100.28

T. Spessartite from Katerina mine, Hiriart Hill, Pala, Calif. Analysis by 

W. T. Schaller, record 2869.

U. Uvarovite, submitted by W. E. Smith, Daggett, Calif. Analysis by E. P. 

Henderson, record C-982.

SiOz ... ............ .............

AhO3 .. ........ ...................

FeO. ....................... ....

MgO..............................

T

37.06

21.96

20.05

Trace

U

35.83

9.13

2.61

.22

CaO. ...................... ..... ..

C>Ti03.. ...........................

MnO. ............................

T

0.08

20.41

99.56

U

34.56

17.26

99.61
102 ANALYSES OF ROCKS AND MINERALS, 1914-36

GIIIESPITE

From Dry Delta, Alaska Range, near Fairbanks, Alaska, collected by P. S. 

Smith. Analysis by W. T. Schaller, record C-396.

Si02 -_ _.. 50.08

FeO . 14.60

BaO - .. - .. - 31.02 

AhOs . 34

FejOs . . 56

. ---------------- _ -------- _ 0. 14

Insoluble in HOI... . . ... ....... 2. 20

H2 0 . ................. .82

99.76

GIAUCONITE

A-F. Glauconitic greensand collected by G. R. Mansfield in New Jersey and 

described in Bull. 727, 1922. Analyses by R. K. Bailey, record 3263. A, Sewell; 

B, Elmwopd; C, Woodstown; D, Birmingham; E, magnetically separated glauconite from composite sample representing 12 feet of greensands from Sewell; 

F, magnetically separated glauconite from composite sample representing 12 

feet of greensand from Elmwood.

FesOs. 

FeO 

Al2 0s 

CaO 

MgO -

K2 0 

N&tO. . ..................................

COj 

P2 0j 

HnO. 

A

50. 38

18.69

2.84

7.83

3.54

7.85

.30

.10

.28

8.70

100.88

B

49.50

18.27

3.03

6.52

1.77

3.78

7.37

.26

.30

1.09

8.98

100. 87

C

50.32

18.38

. 3.02

7.53

.65

3.82

7.88

.22

.15

.34

8.58

100. 89

D

68.90

8.91

1.52

3.52

2.10

1.90

3.56

.82

1.00

1.05

7.68

100.96

E

50.58

19.50

2.98

6.72

.34

4.10

8.26

.04

.30

.27

7.76

100. 83

F

49.47

19.46

3.36

5.59

.60

3.96

8 04

.15

.56

1.06

8.54

100.79

G-L. Carbonaceous matter other than carbonate in glauconite submitted by 

G. R. Mansfield, determined by E. T. Erickson, record C-302. For details of 

locations see Bull. 727, 1922.

G. Hole, 6 Woodstown. C, 0.07.

H. Locality 35, hole 10, depth 15 feet. C, 0.24.

I. Marlton district, hole 15, depth 28 feet. C, 0.10.

J. Locality 96, hole 17, depth 15 feet. C, 0.21.

K. Sewell. Grains separated magnetically from washed greensand. C, 0.10.

L. Elmwood Road. Grains separated magnetically. C, 0.09.

M. Glauconite. from a lead mine in Missouri, submitted by C. S. Ross and 

described in U. S. Nat. Mus. Proc., vol. 69, art. 2, pp. 1-15, 1926. Analysis by 

G. V. Brown, record 3271. No Ti02 or Na2 0.

N. From Huntington, Oreg., collected by T. E. Stephenson. Analysis by E. 

P. Henderson, record C-528.

0. Glauconite from vesicular basalt, 23 miles east of Reno, Nev., collected by 

C. S. Ross. Small sample.

P. Similar material from oasalt, Sandoval County, N. Mex. 0.5-gram sample. 

Analyses 0, P by R. C. "Wells, record D-468.

SiOj. 

A12 03 -- -

Fe2 0s. ..... ......

FeO. ..... 

MgO... 

CaO ...

Na2 0 . ......

K2 0 ....... 

H2 0-_ ... .....

M

48,66

8.46

18.80

3.98

3.56

.62

8

01

1 04

N

49.05

7.96

19.66

2.34

1.17

.75

.78

0

55.61

.79

17.19

4.02

7.26

.21

.19

10.03

.48

P

50.6

4.2

14.1

3.3

6.4

3.1

.4

' S 7

1.4

H2 0+ 

P2 05 

MnO _.

803 - 

LisO 

Ti02 -

C02 _._. 

M

4.62

.12

.01

99.08

N

111.79

99.68

0

4.40

.09

100. 27

P

6 9

Trace

Trace

QQ 1

i Total H2 0.

GRIFFITHITE

From Cahuenga Pass, Calif. Described by E. S. Larsen and George Steiger 

in Am. Jour. Sci., 5th ser., vol. 15, p. 1, 1928. Analysis by Steiger, record 3112.

CaO. .. 2.93 H2O+__ .............. 4.90

NajO. .71

KiO...................... None

Ti02, SrO..__- __ None

HzO- ................. 12.31

SiOi...................... 39.64

AljOj -. . . 9.05

FesOs . 7.32

FeO-.. .. 7.83

MgO... .___ ___ 15.80

100. 49

Specific gravity...___ 2.309
SILICATES 103

ORUNERITE

A. From Mount Humboldt, Mich., collected by Stephen Richarz. Analysis 

by J. J. Fahey, record D-263.

B. From an ilmenite vein near Bedford, Va., collected by C. S. Ross. Analysis 

by J. G. Fairchild, record D-286.

SiOj.. ..........

AljOj.. .........

Fe2 0j.. ......

FeO. ...........

TiOj............

A

50.54

2.14

39.37

.10

B

51.50

1.76

12

33.42

.24

MnO. ..........

CaO. ...... -.. ...

MgO. ..........

Na20, K2 0.___.

A

2.02

4.64

.35

B

0.53

in qo

.30

H2 0-. ...... ...

HjO+.. ........

A

0.73

99.89

B

01.65

99.90

HALLOYSITE

Samples submitted by C. S. Ross. The properties of halloysite are fully 

described by Ross and Kerr in Prof. Paper 185-G, 1935.

A. From Peppers, N. C. Analysis by E. T. Erickspn, record D-137. 

-vB. From Hickory, N. C. Analysis by J. G. Fairchild, record Cr-993.

C. From Huron, Lawrence County, Ind. Analysis by J. G. Fairchild, record 

D-155.

D. Same locality. Analysis by L. T. Richardson, record D-67.

E. From LiSge, Belgium. Analysis by L. T. Richardson, record D-67. .

F. From lyo, Japan. Analysis by J. J. Fahey, record D-200.

SiOz....... ...............................

AltOz........ .............................

FeaOs. _ - ___ ......-...-.-....-...-..

FeO......-........... .. . .......... ....

MgO................ ........ .............

CaO........ .............................

NaaO -. ....... . 

K2 0........ ............ ..................

HaO- ... ..............................

H2 0+_...._ ....... . ................... ...

TiOa. .................... ................

Pa06 ..__ .. 

CuO. ...... ...... ........................

C02 . ........................... .......

S03- -- ' ~ 

A

44.68

38.59

.39

.08

.18

.11

.05

1.55

14.90

100.53

B

44.08

39.20

.10

.05

.20

1.44

14.74

90.81

C

43.67

37.91

} .26

Trace

None

3.79

14. 50

.12

100.25

D

40.26

37.95

/ .30

I C)

C)

.22

1 »

4.45

15.94

99.86

E

44.75

36.94

.31

0)

(0

.11

( .60

2.53

14.89

100.13

F

41.63

20.53

} .23

.15

} »

9.35

12.12

.22

14.77

.31

.28

99.69

i Doubtful trace.

G. From Edwards Plateau region, Texas. Analysis by R. K. Bailey, record 

D-125. Described by Ross and Kerr in Prof. Paper 185-G, 1935.

H. From Gardner mine, 4 miles northeast of Huron, Ind., collected by H. 

Ries and described as "indianaite" in Bull. 708, 1922.

I. From Mississippi, collected by M. A. Pentz. Analysis by Charles Milton, 

record D-144.

J. White rock, possibly halloysite, from Tintic, Utah, collected by Waldemar 

Lindgren. Analysis by R. C. Wells, record 2937.

K. From Cerro Gordo, Inyo County, Calif. Analysis by Chase Palmer, 

record 2996.

SiOz .......

AhOs ...

FeO ....

MgO ......

CaO .....

NajO. 

G

44.50

38.68

.24

.05

1.19

H

43.47

38.03

\ 25 f '^

I

44.34

37.39 1 '"

fid

.17

.17

J

41.20

36.90

K

43.11

38.60

K5 0 ......

HaO-... ..

H»0+... .....

TiOj .....

O

0.14

1.17

14.38

H

3.83

14.73

100. 31

I

0.04

2.00

15. 09

Trace

99.66

J

22. 60

100. 70

K

......

17. 52

99.23

71413 37-
104 ANALYSES OF ROCKS AND MINERALS, 1914-36

HEDENBERGITE

A. From Hanover, N. Mex., collected by A. C. Spencer. Analysis by W. T. 

Schaller, record D-237.

B. From Yakuki mine, northeastern Japan.

C. From Sasagatani mine, Japan. Analyses B, C by J. G. Fairchild, record 

D-245; both specimens studied optically by W. T. Schaller.

D. From Cranberry, N. C., collected by C. S. Ross. Analysis by E. P. 

Henderson, record C-892.

E. From Cranberry, N. C., collected by C. S. Ross. Analysis by J. G. Fairchild, record D-269.

F. From Ducktown, Tenn., collected by F. B. Laney and separated by C. S. 

Ross. Analysis by J. G. Fairchild, record D-194.

G. From Independence, Va., collected by C. S. Ross. Analysis by J. G. 

Fairchild, record D-396.

	48.64 48.18 48.69 48.97 48.08 51.46 49.26 

AlsOs -88 .05 .05 .98 2.16 .98 .74

Fe2 0s. _____ _----_ 1.16 1.47 1.35 2.59 2.66 None? 2.17

FeO -- 15.45 24.90 21.85 23.10 21.30 16.93 19.65

MgO. .03 .39 2.01 3.28 3.00 7.54 2.11

MnO 10.77 3.25 3.76 .73 .46 .10 3.56

ZnO____________ .24 None None ____ None _____ None

CaO... 21.99 22.24 22.42 20.63 22.00 23.08 21.88

H2 0- .......... . . .06 .. ... ..... .. .... . .......... \

H2 0+ ... .... ..... .99 ... ... ..... .......... .......... J

COz .14

100.35 100.48 100.13 100.28 99.99 100.09 100.03 

Specific gravity . _ 3.494

HISINGERITE

Specimen from Bellevue King mine, Bellevue, Idaho. Analysis by W. T. 

Schaller, record 2868.

SiO2 . ...____-__-----_____ 38.13 H2O-__...____........_.__-_.. 13.20

Fe2 03 -- -- - 36.66 1180+..... .. . 8.53

Mgd"I 2! 45 99.81

MnO..______.____.____.-__ Trace

HORNBLENDE

Specimen from vicinity of Bedford, Va., collected by C. S. Ross. Analysis by

J. G. Fairchild, record D-286.

Si02 .............. 46.20 CaO ............. 10.02 TiOs ....... ....... 0.33

AIjO! .... - 6.94 Na2 0 ............... .84 MnO.. . .24

FejOa. ...-.__.. .... 4.50 K2 0-__.____._. .48 

FeO . .....__-_ 21.00 B^O+.................... 2.00 100.03

MgO 7.48

ILVAITE

From T. 36 N., R. 9 E., Thunder Creek region, Wash., collected by J. S. 

Diller. Analysis by R. C. Wells, record 3204.

SiOj 30.8 MnO .. 0.8

TiOs-.-..-------__. __ Trace A1 2 03 , etc......___..... ___.___ .6

Fc 2 0s 25.1 FeSj .. .. (')

FeO ..... ' . 24.2 

CaO 16.6 98.7

MgO.... .6

1 Present.

INESITE

Specimen from Quinault, Wash., submitted by J. J. Glass. Analysis by J. G. 

Fairchild, record D-173.

Si02 . . . . 45.67 H2O- ... .......................... 2.13

Mn'O 35.10 HtO+...................................... 6. 53

FeO.... .92 

CaO.. . 9.33 100.54

McO .86
SILICATES 105

JEFFERSONITE

From Ogdensburg, N. J., U. S. National Museum no. 49651. Analysis by 

J. G. Fairchild, record D-269.

SiOj........... ... - 47.22

AhOj..................... 1.76

FejOs-....__............ 3.20

FoO.. .....--- -~ 6.93

MuO..................... 8.65

ZnO..

MgO. 

CaO.. 

NajO.

8.70

2.82

20.04

.32

JOHANNSENITE

HjO. 

Ti02.

0.2S 

None

99.98

A-C. Theoretically MnCa(Si03)2, named by W. T. Schaller. Analysis A by 

L. T. Richardson; Aa, B, and C by W. T. Schaller, with MnO by J. G. Fairchild, 

records D-S6 and D-193.

A, Aa. Specimen collected by J. T. Pardee from California vein, Musick mine, 

Bohemia district, Lane County, Oreg.

B. From Schio, Vicenza, Italy, collected by D. F. Hewett.

C. From Italy, Roebling collection.

D. From Hanover, N. Mex., collected by A. C. Spencer. Analysis by W. T. 

Schaller, record D-237.

E. From Tetela de Ocampo, Pueblo, Mexico. Furnished by Manuel Santillaii. 

Analysis by W. T. Schaller, record D-388. The sample is estimated to be 79 

percent johannsenite, 3 percent hedenbergite, 1 percent diopside, 17 percent

rhodonite, and 2 percent quartz.

F. From Franklin, N. J., separated by J. J. Glass from pink bustamite. 

Studied by W. T. Schaller. Analysis by j! G. Fairchild, record D-245.

SiOs...... ......................

A.\3 0i.... .......................

feO...... ......................

F6203. ....... .--.-- ----

MgO..... ......................

ZnO. ..........................

MnO. ........- -.-_---...--

CaO.. .........................

C02 ...... ........ ..............

SO^..... .......................

HsO...... .....................

HjO+.... .....................

Snecific gravity..... ..-.. ......

A

42.80

Trace?

2.93

Trace?

1.34

64

23.56

21. 10

3.86

1.62

.62

1.50

99.97

3.23

Aa

42.88

3.46

.59

2.06

23.65

20.88

None

.53

1.63

95.68

B

47.62

.81

4.31

.62

2.74

.21

21.15

20.15

2.07

.19

.25

100. 12

C

48.16

.50

None

.23

.28

27.82

20.56

1.02

.55

.58

.11

99.81

D

48.15

.31

4.28

1.58

.48

.14

21.37

20.88

1.39

.24

.96

99.78

3.282

E

50.24

.32

.88

.25

.26

29.24

18.16

.15

.49

100. 69

F

50.30

2.59

6.19

S 97

14.85

22.97

100.17

KAOIINITE

A. Washed sample from Woodrow, N. C., collected by W. S. Bayley. Analysis 

by George Steiger, record 3245.

B. Material embedding creedite, Wagon Wheel Gap, Colo., collected by E. S. 

Larsen. Analysis by R. C. Wells, record 3069. Described in Nat. Acad. Sci. 

Proc., vol. 2, pp. 360-365, 1916.

C. From Owensville, Mo., submitted by John Skornia through Jefferson 

Middleton. Analysis by R. C. Wells, record 3182,

SiOs... ................. ..

A1S 02 .... .................

FeaOs ..................

FeO........... ..... ...

MgO... ..................

CaO.... ..................

2*J ---_____*-----...---

^0+.... ....... .........

A

46.41

37.76

} .70

no

None

13.46

B

44.2

40.2

TVnpfl

.3

} 13.2

C

44.45

38.37

f .78

I -14

.26

.27

 yo 

12.82

Ti02~... ..............

NazO........ .............

KjO..... .................

PsOs - ..................

Specific gravity. _ ......

A

.17

.55

.04

100. 28

B

97.9

2.548

C

1.21

99.28

LEPIDOLITE

From Katerina mine, Pala, Calif., collected by W. T. Schaller. 

tion of alkalies only by R. E. Stevens, record D-377.

DeterminaLiaO........................................ 3.51

Na2 0.-.._......-....._-_......-.... .... 1.27

K2 0........................................ 10.32

RbaO.. 

CssO....

1.11 

.13
106 ANALYSES OF ROCKS AND MINERALS, 1914-36

LEUCHTENBERGITE

From tungsten vein near brucite deposit, NWJ4 sec. 36, T. 12 S., R. 36 E., 

Paradise Range, Nye County, Nev., collected by Eugene Callaghan. Analysis 

by Charles Milton, record D-170.

SiOa.__._.. __ 31.02 

AljOs. .. ........ 20.79

FesOa-_...._...-...-. .04

FeO....................... 1.20

MgO...................... 34.25

CaO - .--_ .. 0.02 

TiOj. Trace 

MnO.. -..... .. Trace 

PzOs . - .01 

H2 0-_.................... .03

IEVERRIERITE

HzO+................- 12.77

NajO .51

KjO.. . . .07

100. 71

A. From Manhattan, Nev., carrying gold; collected by H. G. Ferguson and 

described in Bull. 723, 1924. Stated to be pure by E. S. Larsen. Determinations by R. K. Bailey, record C-124.

B. From National City, a few miles south of San Diego, Calif., submitted for identification. Analysis by W. T. Schaller, record C-316. Probably 

bentonite.

C. From Elko, Nev., submitted by Jefferson Middleton. Analysis by E. P. 

Henderson, record C-370.

SiOj 

AhO3 . - -

MgO ... ... .... ....

CaO... ...............

K2 0. ...... ........ ....

A

0.31

B

54.36

21.14

70

c

49.30

21.88

3 06

1.20

H2 0...... ...... ... ...

H2 0+.... ................

A

4.56

16.15

B

11.09

8.16

4.46

100.00

C

} 22.40

97.84

MICROCLINE

A-I. Samples from Connecticut pegmatites collected by F. J. Katz and 

described in Mineral Resources for 1915, pt. 2, pp. 43-49, 1917. Partial analyses 

by George Steiger, record 3167. A-B, Chatham; C-D, Portland; E-I, Glastonbury.

Na2 0. ............... ......

KzO .....................

A

2.96

12.51

B

2.37

12.63

C

2.76

12.65

D

2.95

12.32

E

2.52

12.87

F

2.42

13.12

Q

2.52

12.89

H

2.32

12.78

I

2.28

13.06

J, K. A sample of green microcline, collected by J. J. Glass at Amelia, Va., 

was analyzed for alkalies only by R. E. Stevens, record D-331 (J). White 

microcline in sharp contact with the green gave the results under K.

L-0. Samples collected by F. J. Katz. Analyses by George Steiger, record 

3167. L-N, from Batchellerville, N. Y.; O, from Bedford, N. Y.

NazO.. ..................................

LizO 

K2 0 .. .................................

E\)iO. ...................................

Cs2 0.. ........... .......... ..............

J

} 01. 54

14.38

1.02

Trace

K

I 0. 084

I .08

15.44

.42

.10

L

5.38

11.92

M

2.32

13.15

N

2.96

12.63

0

2.54

12.65

MONTICELIITE

From Ivanpah quadrangle, Calif.-Nev., collected by D. F. Hewett. Analysis 

by W. T. Schaller, record D-192.

Insoluble diopslde..--.--.-.-.-_.._.... 2.55

SiOs 37.36

FeO 1.40

MnO. . .. .04

MgO_....__......._........_____ 24.90

CaO..................................... 33.08

HjO-. .04

HjO+ ........................ . 1.24

100. 61
SILICATES 107

MONTMORILIONITE

[For other analyses of montmorillouite see "Bentonitic clays."]

A-F. Six samples of montmorillonite submitted by C. S. Ross. 

A. From Atzcapozalco, Mexico. Analysis by E. T. Erickson, record D-432. 

B. Near Laurel, Miss. Analysis by J. J. Fahey, record D-203. 

C. Near Jackson, Miss. Analysis by R. C. Wells, record D-268. 

D. Husband farm, Smith County, Miss. Porous variety. 

E. Same, dense variety. Analyses D, E by R. E. Stevens, record D-355. 

F. Montreorillonite low in iron, exact locality unknown. Analysis by J. G. 

Fairchild, record C-993.

SKh .... ._-. ...... ...

AlzOj.............. ......................

IfpoOo

FeO........ .............. ............ ....

MgO......... ............................

CaO. ....................................

NajO. ...................................

K2 0.- .

H2O-............_... ........ ...._._ .....

HZ 0+....... .............................

Ti02 . . . .....-... ...... .......

A

50.44

16.26

5.38

Trace

3.92

.72

16.00

6.30

.42

99.44

B

49.48

17.75

3.33

.15

4.42

.16

\ 12 1 l12

18.26

5.86

.29

99.82

C

50.20

16.19

4.13

4.12

2.18

f .17

1 .16

15.58

.20

100. 50

D

50.37

17.11

2.68

.20

4.59

1.23

.56

.09

12.29

10.93

100. 05

E

50.39

17.37

2.84

4.56

1.29

.46

.04

13.31

100. 37

F

51.50

19.44

.10

5.07

.48

> . 20

14.50

8.04

99.33

G-M. Seven samples submitted by C. S. Ross. Analyses G K by J. G. Fairchild, record C-993 and D-289; L by J. J. Fahey, record D-174; 'M by R. E. 

Stevens, record D-364.

G. Montmorillonite from San Diego County, Calif.

H. From Amargosa VaUey, Calif., washed.

I. Pink montmorillonite from pegmatite, San Diego County.

J. Montmorillonite (galapectite) from Anglar, France.

K. Alteration product of pollucite from Greenwood, Maine.

L. Montmorillonite from locality near Dixon, N. Mex.

M. From Santa Rita, N. Mex.

SiOa. .......................

AhOa..... .....................

FesOs -_ ._.--..- ....

FeO... ........................

MgO..........................

CaO...........................

NajO . ......................

K2 0 ........................

Li2 0...........................

HaO-... ............. .........

HaO+... ......................

Ti02 .. ~~- -- ... ....

MnO. ______ __ ........ ......

01.............................

S03 .- -- .--.-.

G

53.96

1.12

6.99

80

.94

.54

14.22

6.34

.19

.29

100. 83

H

54.58

16.44

2.59

.11

4.90

.72

3.02

.81

11.10

5.49

.18

99.94

I

50.06

21.32

.22

Trace

4.42

1.26

.33

.19

14.06

7.56

Trace

.13

99.55

J

50.86

18.76

2.07

3.48

.37

} 22. 34

99.64

E

54.28

22.94

.24

2.92

} .08

.02

S 7.82

\ 8.70

.00

100.24

L

51.37

15.41

.78

.14

6.22

(

7Q

.46

15.76

8.20

.29

.23

99.65

M

54.15

15.99

.59

.06

4.48

1.90

.42

.19

13.29

8.99

.11

100.17

N, 0. Two samples of montmorillonite submitted by C. S. Ross.

N. From locality west of Leakey, Real County, Tex. Analysis by J. J. Fahey, 

record D-124.

0. From Rideout, Utah. Analysis by J. G. Fairchild, record C-993.

P-R. Three samples studied by P. G. Nutting. Analyses by J. G. Fairchild, 

record D-467.

P. Sanders, Apache County, Ariz. Sample from Filtrol Co. White.

Q. Westcliff, Colo. Pink, conchoidal. Compare analysis under clays, p 67.

R. New Mexico, sec. 6, T. 20 N., R. 9 E.
108 ANALYSES OF KOCKS AND MINERALS, 1914-36

SiOs. ...... ...................... ........

AltOi.. .......................... .......

FeaOa .................. ....

FeO. ................... ...... . .......

MgO.. . ..-.. .......................

CaO... ..... . .... ..... . ......

NaaO....... ...........__..._._.._....__.

KsO. .....................................

H2O-. ...................................

H2 0+.. ..................................

TiOj.............. .....................

P2 05......................................

SOa ...... ........- .... ..

MnO......... ............................

N

11 74

22.81

.39

3.32

.17

.26

11.84

9.19

.11

99.83

0

56.86

16.00

.98

Trace

4.13

1.52

.22

.27

13.68

6.43

- .06

*

100.15

P

51.20

15.12

1.41

5.22

2.71

.50

.08

16.78

6.92

.10

.03

100.07

Q

55.29

14.86

1.23

4.30

2.26

.42

.28

14.23

7.12

.06

.02

.15

100.52

R

52.30

14.43

2.00

6.15

2.12

.50

.52

15.78

6.55

.20

.02

.05

100.62

MORDENITE

From Marysvale, Utah. Analysis by W. T. Schaller, record 3073.

SiOz................ ......................... 67.35

AljOa - .. ......................... 11.49

CaO... .......................... ....... . 3.87

NaaO. 2.63

EsO-.......................... ............. 5.13

HS 0+....................................... 8.82

MUSCOVITE

A. From Waynesville, N. C. Partly leached or decomposed. Collected by 

W. S. Bayley. Analysis by George Steiger, record 3245.

B. Collected by W. T. Schaller at Harding mine, 9J^ miles due east of Embudo, 

N. Mex. Analysis by E. P. Henderson, record C-636.

C. Collected by W. T. Schaller from east side of Rio Graude, 1 mile southwest 

of Cieneguilla and about 9 miles northeast of Embudo, N. Mex. Pink. Analysis 

by E. P. Henderson, record C-632.

D. Fine-grained micaceous material coating quartz, apparently a variety of 

muscovite, from Melones, Calaveras County, Calif., submitted by C. S. Ross. 

Analysis by J. J. Fahey, record D-124.

E. From sedimentary beds, Graves County, Ky., submitted by C. S. Ross. 

Analysis by J. G. Fairchild, record D-289.

F. Collected by C. F. Park, Jr., from Battle Branch mine, Auraria, Ga. 

Analysis by R. E. Stevens, record D-412.

SiOj... .... ..__...__ .... .. ......

AljOs- ............ . .... . ......

Fe203 .. ... ............ ................

FeO. ....................................

MgO. ...................................

CaO.....................................

NaaO......................... ..........

K2 0. ....................................

H2 0-. ..................................

H2 0+._ .................................

TiOj......................... ............

F. ................................ ......

MnO................... ..... ......

Li2 0. ....................................

Mu^Ot... .......... ... . ........ ......

Rb.Cs..................... ..............

Less 0. ............ __ ...... _ ... __ .

A

40.79

29.98

8.07

2.48

2.71

.45

.38

3.47

1.20

9.34

1.28

100. 15

B

44.80

37.72

.67

1.40

10.66

} 4.52

.20

.21

100. 18 

.08

100. 10

C

45.16

35.61

2.95

1.03

10.32

4. 36

.63

100. 06

D

50.60

31.07

3.00

.72

None

None

6.43

f .13

\ 7.47

.83

100. 25

E

49.37

29.21

1.54

2.77

None

.14

9.72

.75

6.88

.19

100.57

F

45.42

33.52

1.47

1.11

1.22

1.12

1.34

8.06

} 5.89

.39

None

99.54

NONTRONITE

A. From Woody, Calif. Described by E. S. Larsen and George Steiger in 

Am. Jour. Sci., 5th ser., vol. 15, p. 1, 1928. Analysis by George Steiger, record 

3112.

B. From Chevy Chase, D. C. Analysis by L. T. Richardson, record D-67.
SILICATES 109

C. From Santa Rita, N. Mex. Analysis by R. C. Wells, record D-432. 

D. From Sandy Ridge, N. C., in arkosic sedimentary rock. 

E. From Spruce Pine, N. C., in altered pegmatite. Samples B-E submitted 

by C. S. Ross. Analyses D, E by L. T. Richardson, record D-67.

SiOa __ ... _ ... _ ......................

AljOs ............ .................. ....

Fe2 0z........... ..........................

FeO. .....................................

MgO.. ...................................

CaO.... ..................................

NaaO. ...... ..............................

K2 0. .....................................

Ti, Sr....________ . . . ............ ..

HaO-. ...................................

H2 0+... .................................

Specific gravity ...........................

A

47.51

.37

35.17

1.40

2.50

.09

.06

7.16

5.90

100. 16

2.495

B

46.65

17.65

18.39

Trace

1.21 } ..

5.55

10.81

100. 81

C

40.48

6.00

29.33

.26

.31

2.90

|

15.39

5.65

100. 32

D

41.38

9.84

27.47

Trace

Trace

Trace

12.10

9.25.

100.04

E

41.88

11.90

26.20

Trace

.10

.67

\ 52

/ . Ou

7.67

10.78

99.72

PENNINITE

From brucite deposit, Paradise Range, Nev., collected by Eugene Callaghan. 

Analysis by J. J. Fahey, record D-184. (Na,K)^0 less than 0.10 percent.

SiOa__.........__..--.-----.-.-.-.._.. 36.56

AlsOa .................................... 11.80

F^iQa...................................... None

TiOj....................................... None

FeO........................................ 1.27

MgO....................................... 37.15

CaO...-.. .... - . -... 0.02

H2 0-_........__...............___.... .43

H2 0-t-...................................... 13.19

100.42

PHIOGOPITE

From Verdiolite quarry, near Easton, Pa., collected by W. S. Bayley. 

analysis made on 4 grams by J. G. Fairchild, record C-520.

SiOa .................................... 42.16

AlaOj........................_._._._ 11.08

FezOs, FeO................................. .58

MgO....................................... 29.52

Partial

CaO....................................... None

KaO........................................ 9.96

0.30

HaO.........____...............__... None

Loss on ignition..____.__.______ 2.14

F.......................................... 1.10

96.84

POLLUCITE

From Tin Mountain, S. Dak. 

by R. E. Stevens, record D-370.

U. S. National Museum no. 96487. Analysis

SiOa..

AhOa

..... ........................... 45.66

................................ 16.64

................................ .22

FeO........................................ .10

MgO..... .................................. .29

CaO...... .................................. .36

NaaO... ........ ............................ 2. 12

KiO.... .................................... .14

HzO-...................................... 2.17

H2 0+ ................................^.. .42

Ti02 ...__________________._ None

LijO....................................... .22

Rb2 0._..._ . __ __._____ None

CszO.. . ........ ................... 31.80

100.14

POTASH CLAY

A-B. Two gouge clays from Thunder Mountain district, Idaho, collected by 

C. P. Ross. Analyses by J. G. Fairchild, record C-993.

C, Potash clay from Evansville, Tenn., submitted by C. S. Ross. Analysis 

by J. G. Fairchild, record C-993.

SiOz......... .............

AlzOs. --- . .....-.-

FeaOs. __ ......... __ ...

FeO......................

MgO......................

CaO......................

NazO. ....................

A

57.02

26.10

.92

.38

.50

nPrnpp

B

47150

31.52

1.18

.50

.72

RA

.19

C

55.27

20.73

2.18

.41

3.82

Trace

KaO......................

HzO-.. ..................

H2 0+.. ..................

TiOz...... ................

SrO... ....................

A

6.45

8.20

99.57

B

7.90

9.92

Trace

100.06

C

6.21

4.87

6.50

.30

100.29
110 ANALYSES OF ROCKS AND MINERALS, 1914-36

RECTORITE

From Hot Springs region, Ark., submitted by C. S. Ross. Analysis by J. J. 

Fahey, record D-108.

SiOa.

OaO

 . - 47. 10

3 .. 33.97

t.. .................................... .31

) .01

 .42

) .......... ....... 3.88

K2 0 ... .... ........

H O4-

 . 0.16

 . .. 8.34

 ... ... 6.27

100. 46

ROSCOELITE

A. From Paradox Valley, Colo., collected by F. L. Hess. Analysis by R. C. 

Wells, record 2918.

B-D. From Colorado, collected by F. L. Hess. Analyses by W. T. Schaller, 

record C-734.

Soluble SiOs 

AhOs ..... ...

FezOs 

MuO.. ... ..........

CaO . ... ... ... ...

NasO .

K2 0.. ...............

H«0-.. .....

HsO+_ .............

A

} 47. 27

19. 18

1.69

.93

.06

.24

8.68

1.62

4.17

B

J78. 36

\ 7.97

6.23

\ ( ° 

J3.S5

C

76.79

9.09

4.44

C)

3.76

D

77.21

8.49

(0

TiOj . ............

V,0j.... .........

BaO 

FeS2 

Li, Se . ------

A

0.06

15.26

Trace

.13

99.29

B

0.96

97.37

C

1.65

.01

95.74

D

1.23

1 Present.

SAPONITE

A-C. Three specimens submitted by C. S. Ross. Analyses A, B by L. T. 

Richardson, record D-67; C by J. G. Fairchild, record D-75. A, Utah; B, C, 

Glasgow, Scotland.

D. Hydrous magnesium silicate occurring as angular fragments in magnesitic 

clay in the Currant district, west of Ely, Nev. Submitted by Eugene Callaghan 

and W. W. Rubey. Analysis by Charles Milton, record D-426.

E, F. Saponite from Hector, Death Valley, Calif., submitted by C. S. Ross. 

Analysis E by J. G. Fairchild, record D-289; F by R. E. Stevens, record D-355.

SiOi.. ........ ...........................

\\^.. .... ..............................

FesOs- --. - ~.

FeO---_ . 

MgO ............... .... 

CaO.. ............ .............. ......

KjO..-.. . . 

LiaO. .. 

HiO-.. ................................ .

S.tO+. ..................................

C02 ...... ................................

TiOa ....... ... -----

P2 05 . ...... ...... ...... ...... .......

SrO.... ..................................

A

62.96

13.24

2.66

7.78

.86

.31

.36

12.66

9.22

100. 05

B

40.16

8.03

8.50

3.8.3

19.40

1.91

11.15

7.60

100. 58

C

40.12

7.34

8.69

3.55

19.90

.85

} 19. 56

.10

100. 11

D

40.76

1.10

.37

33.40

Trace

.05

( 8.90

\ 12. 04

.87

.01

99.50

E

57.50

.68

.24

25.98

.47

2.48

.45

3.52

6.88

.02

. .34

98.56

F

51.26

.36

.09

23.25

2.60

3.47

.10

.60

11.56

5.14

1.35

Trace

99.84

SCHROTTERITE

A. From Styria, submitted by C. S. Ross. Analysis by J. J. Fahey, record D-200.

B. Hyaline coating on a lump of sandstone collected by H. Ries at Gardner 

mine, 4 miles northeast of Huron, Ind. Analysis by George Steiger, record 3248.

C. A poorly defined species received from W. S. Baldwin, Dalton, Ga. Analysis 

by E. P. Henderson, record C-667.
SILICATES 111

Si02 ........... ...........

AljOa . .- .-

FezOa-.-. --. .-.-

MgO.. ...................

CaO.... ..................

(Nn, K) 2O...... ...........

H2 0 ....................

HjO+... .................

A

4.34

41.41

.80

.22

.20

.10

on QO

14.43

B

10.70

i 54. 53

.37

S

on

29.48

C

10. 80

33.61

.73

.98

} 39. 95

TiO:.. ........ ...... .....

C02 ... ...................

P2 05 ..._ ................ .

S03 .. . ...................

CuO. .....................

ZnO..... .................

A

2.07

9.23

08

1.80

4.30

99. 96

B

None

100. 34

C

14. 03

100. 10

1 Includes PaOs.

SEARLESITE

From Searles Lake, Calif., described by Larsen and Hicks, Am. Jour. Sci., 

4th ser., vol. 38, pp. 437-440, 1914. Analysis by W. B. Hicks after deducting 

impurities, record 2908.

Si02 .. 

B2 03 .. 

NajO. 

KaO.. 

H2 0..

SEPIOLITE

58.41

17.48

13. 73

1.07

9.31

100.00

From Duchesne County, Utah. Collected by W. H. Bradley and described 

in Prof. Paper 158, pp. 1-7, 1930. Analysis by E. T. Erickson, record C-964.

Si02 

A1 5O3

35. 92

1.16

Fe2 03 ...............................- -... . 26

MgO. 

CaO.

16.34 

1.

Ti02 ._...................................... 0.10

C02 .......................................... 1.14

Loss on ignition, excluding C02 --_....;. 42.06

98.86

SERENDIBITE

From Warren County, N. Y., submitted by E. S. Larsen. Analysis by W. T. 

Schaller, record C-732.' Formula: 4,Si02 .3Al2 03.2Ca0.4MgO.B2 03 .

gjQ

A1 2O3 ... ...................

FeO......................

CaO.....................

........... ....... 26.30

_.._...... . . 34.05

....... .. 2.76

.................. 13.30

M^O.... ................................. -

Bj08 _. ............ -. .-................-..

15.44

8.37

100.22

SERICITE

A-E. From a pegmatite near Amelia, Va., collected by J. J. Glass. Analyses 

A, B, E by R. E. Stevens; C, D by J. G. Fairchild, record D-175.

A, B. Purple mica. Compact sericitic mineral associated with albite and 

topaz.

C, D. Alteration product of topaz.

E. Sericite (metasericite) apparently an alteration product of oligoclase; Be, 

spectrographic tests by George Steiger.

F. From Pend Oreille district, Idaho, associated with pyrite, molybdenite, and 

gouge in a seam of contact-metamorphic minerals in granodiorite. Sample purified by Edward Sampson. Analysis by J. G. Fairchild, record C-418.

G. From Climax district, Colo., collected by J. W. Vanderwilt. Analysis by 

J. G. Fairchild, record D-6.

Si02 ... ........................

A12 03 . ......................

Fe as Fe2 08 .. .--..-.-.......

Ti02 . .........................

MgO........ ..................

CaO...........................

Nn2 0........ ..................

K2 0... .......... ..............

H2 0-...._. ...-......_..__.._.

H2 0+..... ....... .............

P2 06 ............. ..............

MnO..........................

F, Li..........................

Be.............................

S... ............... ............

A

46.81

36.09

.28

.01

.62

.29

.68

10.24

.42

5.00

100.44

B

46.80

35.84

.27

.01

.56

.29

.60

10.08

.64

5.05

100. 14

C

48.06

32.14

1.24

1.39

Trace

.17

9.21

2.06

5.46

.20

99.93

D

47.22

32.00

1.33

1.25

Trace

8.89

3.14

5.64

.12

.14

99.73

E

49.16

30.81

1.53

.04

2.22

.15

.48

10.90

.15

4.73

100.17

F

50.26

32.12

.88

.24

.77

None

None

10.04

.26

4.69

.06

99.31

0

49.14

32.27

1.16

.02

1.81

.80

.23

10.88

} 4.42

.04

100.71
112 ANALYSES OF BOCKS AND MINERALS, 1914-36

SERPENTINE 

[See also Antigorite.]

Serpentine of the picrolite type from Bellows Falls, Vt., submitted by C. S. 

Ross. Analysis by J. G. Fan-child, record C-993.

SiOs........................................ 39.92

AljOa-. -- . - - ..- .44

Fe2 03 -- ... .. ............... . 5.63

FeO ..___..__........__.____ Trace

MgO....................................... 39.10

CaO..___..__._.______.___ None

B:O+ _________.__-...._____ 13.80

TiOj. ___..__...._._.__.._ None

98.94

SHATTUCKITE

From Shattuck Arizona mine, Bisbee, Ariz. Analyses by W. T. Schaller, 

records 2928 and 2926. 

A. From heavy solution. 

B. Deep-blue spherulites. 

C. Pale-blue massive mixture of shattuckite and plancheite.

Si02 . .......... . ....

CuO. ....................

FeO

CaO.....................

A

39.68

S4.80

.05

B

37.91

55. 51

.43

C

39.92

53. 20

QO

H2 0... ...................

ZnO..... ........ ..........

A

5.94

100.63

B

5.83

99.68

C

6.41

100.36

SPADAITE

A, B. From Cane Springs mine, Gold Hill, Tooele County, Utah, collected by 

T. B. Nolan. Analysis by W. T. Schaller, record C-1057. Described in Am. 

Mineralogist, vol. 16, pp. 231-236, 1931. A, Material as analyzed; B, recalculated after deducting insoluble, wollastonite, and H2 0 at 110° C.

C. Nickeliferous spadaite or a related nickel-magnesium silicate from Webster, 

N. C. Similar material has been described as genthite, garnierite, and nickeliferous deweylite. Specimen collected by J. T. Pardee. Analysis by Charles 

Milton, record D-300. Optically it consists of a crystallized gel, brown spherulites, of fairlv high birefringence, and index about 1.46. The analysis approximates 

RO.SiO,.H,b.

Si02 ....

FeaOs 

FeO............ ..........

CaO.........................

A

8.68

43.69

.22

97

1.58

B

54.05

.30

.35

C

50.0

4.8

MgO -

NiO...... .... ....... ..

H2 0 ....... .. ... 

A

24.72

20.87

Iflfl (W

B

31.81

13.52

inn no

C

15.5

16.5

12.1

QO Q

TAIC

A-D. Samples collected and studied by J. S. Diller. Analyses by J. G. Fairchild, record C-177.

A. Indian talc, believed to come from Sandun, about 275 miles northwest of 

Madras, showing some chlorite.

B. German talc, believed to be from southern Fichtelgebirge. Bavaria. Very 

little chlorite.

C. Italian talc. Some pale-green chloritic material.

D. French talc, said to be from Luzenac. A little chloritic material.

E, F. White talc from Riggs, Calif. Analyses by R. C. Wells, record 2874.

G. From Dublin, Harford County, Md. Analysis by J. G. Fairchild, record 

3256.

Si02 ... ........................

A12O3 ........ ... ......

FeO...........................

MgO..........................

CaO..... ......................

H2O. ..........................

A

61.00

2.12

1.74

29.83

5.56

100. 25

B

61.37

1.96

1.47

30.23

5.37

100. 40

C

61.52

.84

1.27

31.38

5.42

100.43

D

61.44

1.52

.97

31.55

5.19

100. 67

E

60.88

.36

.10

.33

28.85

4.28

4.50

99.30

F

63.36

.46

.09

.30

27.60

3.49

3.92

99.22

G

58.68

3.75

5.52

26.80

5.33

100.08
COLUMBATES, TANTALATES 113

TOPAZ

From Old Einstein silver mine, 9 miles west of Fredericktown, Madison County, 

Mo. Collected bv C. S. Ross. Partial analysis bv E. P. Henderson. record 

 C-658.

SiOj................................................................................. 32.65

AhOi-....-..._...................................................................... 54.67

YetOi............................................................................... 1.78

F___ ... ... ......... ._...___.__......._....._....__ Present

TOURMALINE

From a vein northeast of Gold Hill mine, Quartzburg, Boise County, Idaho. 

.Submitted by Louis Klein, of Boise. Partial analysis by W. T. Schaller, record 

 -749.

Si02~, 

A12 03 . 

FeO... 

OaO..

MgO..

37.14

35.02

1.93

URANOPHANE

From Lusk, Wyo., collected by P. L. Hess. Analysis by \V. T. Schaller, 

record C-495-c. A, as received; B, with impurities deducted.

UOj... ...... -.-. .

CaO..... .......... ................

Si02. ----------- _ ...--.... _ ...

H2 0+C0a.. ......................

A

45.5

on O

9.4

22.2

B

67.2

6.5

13.9

U2.6

A

2.1

100.1

B

100.2

ZINNWALDITE

From Morefield mine, Amelia County, Va., collected and purified by J. J. 

Glass. Analysis by J. J. Fahey. Determination of cesium by R. E. Stevens, 

remaining alkalies by R. C. Wells, record D-318.

Si02... ... 

AljO...... ... 

FeO. ............

MgO......... 

CaO.. -

MnO..... ... 

... ..... . 43.70

.... 22.96

 ...... 11.67

..... . .03

ftO

......... 1.96

 ELiO-. ........ ..

HsO+.. .........

TiOt..... ........

LiaO ......

Na2 0.. ......

K2O.. ...........

EbtO. ...........

......... 0.08

..... . 1.35

..... .32

.... ..... 1.92

. . . .74

9 CO

.. .... 1.04

CsaO........ .. ...

F..... ...........

..... .... 0.10

......... 6.52

101.68

...-_ . 2.32

99.26

TITANATES

BRANNERITE

From Stanley Basin, Idaho, submitted by F. L. Hess. Analysis by R. C. Wells, 

record D-252. Described in Franklin Inst. Jour., vol. 189, p. 225, 1920. Calculated age about 37 million years.

COj-.... 0.2

FeaOs, AlaOa, PsOj....__ Traces

SiOa..... 

TiOa..... 

FeO..... 

CaO..... 

U02 ..... 

UOs...- 

ThOj....

0.6

39,0

? 9

?, 9

10 3

33 5

4.1

Cea03 .... ........

YtaOs' -

ZrOa . 

BaO._.._ . .......

SrO...- .........

H2 0.. ........

. .. 3.9

......... .2

 ...... .3

......... .1

......... 2.0

100.0 

Specific gravi ty_____ 5.42

Average molecular weight 350.

COLUMBATES, TANTALATES

COIUMBITE

Two analyses of material from the collection of F. W. Clarke, locality unknown 

but probably Middletown, Conn.

A. Analysis by R. C. Wells, record C-285. 

B. Analysis by J. G. Fairchild, record D-85.
114 ANALYSES OF ROCKS AND MINERALS, 1914-36

CbjOs 

TajOj. .. .-. . .

SiOj......... ........ ............. .

FeO..... .- . ....... .. ..

MgO... .. ..........

CaO. ...--- .................

MnO........... ...................

A

66.6

13.1

.9

12.7

.2

7.3

B

2.25

61.38

16.03

12.50

6.45

NiO, CoO.......... ................

H2 0 .... ...............

TiOj. -

A

100.3

5.63

B

O ^ft

99.11

5.63

MICROLITE

From locality 2 miles southwest of Ohio City, Colo., found in 1932 by E. B. 

Eckel. Material purified further by J. J. Glass. Analysis made for T. S. Lovering by J. G. Fairchild, record D-332. Calculated age, 765 million years.

Insoluble+Si02 ___

AljOsFeaOs - - 

MgO........ --.-

CaO.... .... . ....

NeuO. ...... ... ......

KiO. ................

H2 0. ...... .... . .-

TiOa ~

01........ 

 . 0.92

.... . .10

..... 1.91

04

..... 9.19

..... 2.94

915

 2.84

 . .10

. _ . None

F....... .............

MnO.- -.- .

TaaOs .

U02 --- 

TJOj... 

ZnO.. ..... .... ..

CuO... ....... .... ...

BiaOs. ... 

.... 1.51

 .11

 T 68.47

 . 4.48

.95

 1.69

9 4rt

.04

.07

AszOs

BeO.. ..... ... ... .

PbO.. 

Less 0 = F. .-.---..-.

PblH. ...............

..... 0.40

98 41

. . .64

97.77

 . 5.604

 - .106

POLYCRASE

From Brazil. Described by Hess and Henderson in Franklin Inst. Jour., vol. 

200, p. 235, 1925. Analysis by E. P. Henderson, record C-533.

Ti02 . . 34.88

CbjOs 20.31

Ta205 .................. Trace

ThO2 ................. 5.22

Rare earths.-..-----.--. 29.28

Fe2 03 ~ - .78

AhOa -44

PbO...................... .64

U3 08 - 

H2 0_.

6.4S 

2.04

100.07

SAMARSKITE

A, B. Analyses of two portions of a specimen selected according to their radioactivity from material from Petaca, N. Mex. Described by Hess and Wells in 

Am. Jour. Sci., 5th ser., vol. 19, p. 18, 1930. Analyses by R. C. Wells, record 

C-1065. A, More radioactive part; B, less radioactive part.

C. Specimen from collection of F. W. Clarke, locality unknown. Analysis by 

J. G. Fairchild, record D-84. The presence of silica was not definitely determined.

CbaOj.- 

TaaOs-. 

TiO3 -.._ . .... .... ....

UOs ..... .....

UOj .

ThOj .... . -- .

CeOa ... ....... LasOa. -- -- .

(Y,Er)iO$..~ 

MnO .... ...... --...

A

41.39

7.27

4.29

.02

4.85

7.67

1.58

.31

17.64

n s>;

.89

B

41.29

1 1Q

.02

1.88

3.84

1.10

.56

TVano

37.69

1.36

.59

C

} 52. 00

2.33

} 10.16

.80

16.93

19 99

.38

ZnO ...-.... ......

MgO. .................

CaO ... ...... .... ... ...

PbO--. .

Bi2 03 .. ......

H2 0 ... ... ... ....

A

0.04

4.22

.43

.02

2.06

.27

98.80

5.22

B

0.05

2.98

.11

.04

3.27

1.03

98.38

C

Trace

Trace

1.01

.53

1.02

.85

98.23

5.49

D-F. Samarskite from the Spinelli quarry, 6 miles east of South Glastonbury, 

Conn. Received through Charles Palache. Purified by Harry Berman and C.

M. Alter. Analysis by R. C. Wells, record D-430. 

Age by logarithmic formula 289 million years.

D, Smith's method; E, Fenner's method; F, Mean.

Pb/U+0.36 Th = 0.038S.
BOEATES 115

SiOs.... ...........

Cbj05 .............

TasOs. ............

TiOz.. .. ..........

UOj.... ...........

(La,Tb) 2 03, etc....

Y2 0,.. ............

ThOj............_.

FeO... ............

Fe2Os. .............

D

0.03

42.00

14.73

1.40

8.00

1.55

12.47

3.62

2.11

9.82

E

7.70

3.32

F

0.03

d9 nn

14.73

1.40

7. 85=6. 91 U

 UO

1.55

12.47

3. 47=3. 05 Th

2.11

9.82

MnO._- ....... ...

ZnO...- ....... ...

MgO . ....... ...

CaO..... ... ... .

PbO --.--. 

H2 0-.-._ ...... ..

H2 0+. ...... ...

D

1.75

.02

.33

.30

.06

.59

.46

99.77

E

/0. 362

I .340

F

1.75

.02

.33

} .334=310Pb

.06

.59

.46

99. 504

BORATES

AMMONIOBORITE

From Larderello, Italy. Described by W. T. Schaller in Am. Mineralogist, 

vol. 18, pp. 480-492, 1933. Analysis by W. T. Schaller, record C-1074.

NH4 .................................................................................. 9.78

B2 03 74.18

H2 0 (by difference).... ....................... ..................................16.04

HYDROBORACITE 100.00

From Ryan, Calif, Collected by H. S. Gale. Analysis by W. T. Schaller,

record C-316.

CaO........................................ 14.06

MgO....................................... 10.14

3tOs....................................... 47.71

HsO-. ............................ None

^1,0+...................................... 27.37

FezOs 

SiOz.. 

C02 ..

KERNITE

0.12

.23

Trace

99.63

From Kern County, Calif. Analysis by W. T. Schaller, record C-901. Described by Schaller in Prof. Paper 158, pp. 146-163, 1930.

A. As analyzed.

B, C. Comparison of the loss of water from octahedral borax, Na2 0.2B2 03.5H20, 

and ordinary borax, Na2 0.2B2 03.10H2O, respectively, with that from kernite 

given under A.-

Na 2 0... ...... ........ .......

CaO.........................

BjOa------ .................

HsO at -110°.......... ......

A

22.63

None

50.76

10.97

B

16.03

C

38.47

HsO at 110°-200° .........

H2 0 at 200°+................

Total H2 0. ..................

A

9.08

6.45

99.89

26.50

B

10.82

5.31

32.16

C

5.08

4.7. 46

IUDWIGITE

From the Little Cottonwood district, Utah. A magnesium variety of ludwigite 

described by B. S. Butler and W. T. Schaller, Washington Acad. Sci. Jour., vol. 7, 

p. 29, 1917. Analysis by W. T. Schaller, record D-232.

FeO........................................ 2.55 H2 0.

MgO...................................... 38.34

Fe2 03 .-...-.--... .......--.---. 40.74

B2 0j.......................... .......... 17.36

Insoluble.

0.49 

.61

100.09

PROBERTITE

From Kern County, Calif. Described as krarnerite by W. T. Schaller in 

Prof. Paper 158, pp. 139-146, 1930. Analysis by W. T. Schaller, record C-977. 

Average of three analyses.

Si02 . soluble in HC1... .................. 0.57 Ei03 ^...................................... 49.35

A12 03 , soluble in HC1 .................... .42 H2 0 (total)................................. 25.40

Insoluble in HC1.................. ...... 1.74 

y!aiO....................................... 8.34 100.93

CaO........................ ............. 15.11

1 BsOs determination probably a little high, owing to the reactivity of the separated Si02 and AhOs from 

the residue (clay). Sample may have contained a little admixed borax.
116 ANALYSES OF EOCKS AND MINERALS, 1914-36

TINCAICONITE

From Kern County, Calif. Described by W. T. Schaller in Prof. Paper 158, 

pp. 163-164, 1930. Analyses by W. T. Schaller, record C-980. 

A. Coating on kernite. 

B. From seam in clay associated with kernite and borax.

NaaO. ............................

BjOs 

A

0.48

20.80

47.52

B

0.90

20.72

47.19

HsO . ....................

A

30.59

99.39

B

30.93

99.74

UIBXITE

From Kern County, Calif. Analysis by W. T. Schaller, record C-901. Described in Prof. Paper 158, pp. 138-139, 1930.

Na2 0.... .. . ........ 7.09

CaO.. .... ._ .... 14.06

BaOa 42.94

HaO.................................................................................... 35.54

Insoluble.... __._ - ....... ...................... . ... . .... .10

NITRATES

NITER

99.73

A, B. Efflorescent salts collected by G. R. Mansfield 10 miles west of Homedale, 

Idaho. Water-soluble part. Analyses by R. K. Bailey, record 2983.

01...... ........

804 

N0j._ 

A

0.09

1Q QQ

47.25

B

0.18

4 CO

59.91

Na...... ........

K.. ...... ...... .

Mg.. ...........

A

31.13

QQ

.14

B

13.74

19.75

.03

Ca. 

A

1.61

100. 00

B

1.77

100.00

C. Niter from Riley, Oreg. Analysis by R. K. Bailey, record 3047. Soluble, 

27.55 percent. N0s=52.29 percent of soluble part.

SODA NITER

From Confidence field, Inyo County, Calif. Collected by L. F. Noble and 

described in Bull. 820,1931. Analyses A and B by E. T. Erickson, record C-146, 

and R. K. Bailey, record C-260.

A-B. Best hand-picked specimens.

C. Composition of soluble salts (43.12 percent of sample).

Occurrences of nitrates in the United States are summarized in Bull. 838 by 

G. R. Mansfield. Many chemical tests have been made, but the percentage of 

nitrate in average samples is generally too low to have any commercial importance.

Na 

K. ........... .......... ..

Mg 

Ca... 

SO<..... ....... .... 

A

6.00

B

6.01

C

33.30

.51

.23

.70

35.34

6.08

^Oi.... ..................

NOs 

C103 -. ...................

NH<, I03 , 1... ..

A

22.18

B

22.21

C

0.65

23.19

100. 00

PHOSPHATES AND ARSENATES

AIUMINUM PHOSPHATE

From Tacubaya, Mexico. Analysis by J. G. Fairchild, record C-654. 

not appear to be any known mineral. A little Na20 is also present.

Does

AlsOj. 

Fe2 03 .

MgO. ...........

CaO... ..........

KtO. ...........

17 74

 ...... .89

... .30

. _ . _ .. .44

.......... 2.71

(NHiisO

PjO...... ...... .

80s - 

........... 3.96

W 07

........... 1.74

........... 4.69

HzO (ignition)_______ 32.63 

Insoluble..________ .80

98.97
PHOSPHATES AND ARSENATES 117

ARSENIOSIDERITE

A. From Romaneche, France.

B. Material collected by B. N. Moore at the Gallinger-Root mines, 2 miles 

northwest of Ludlow, San Bernardino County, Calif. Both analyses by Charles 

Milton, record D-452. The small sample of B available contained a little 

psilomelane, hematite, and siliceous impurities.

SiOj. ...........

F6203 ~

AljOj...........

CaO. ...........

A

3.07

36.45

TVftpA

B

i 18. 59

27.03

2.41

H Qt

MgO.- 

MnO. ..........

P2 04 . 

A

0.17

Trace

37.65

.18

B

0.84

31.16

HjO-. ......

H2 0+. ...... ...

A

0.30

8.06

100. 02

B

0.53

8.45

100.94

1 Includes insoluble.

AUTUNITE

From fault block on southeast side of Temple Mountain, Utah, 

by F. L. Hess. Analyses by W. T. Schaller, record C-314-a. 

A. Impure material as analyzed. 

B. Recalculated with impurities deducted.

Submitted

UOs. ... .... .

CaO. ...........

PaOj ...

A

21.11

2.14

3.18

B

63.01

6.39

9.49

HjO.. . ......... Se. -

SOj... .... ... ...

A

7.07

Trace

B

21.11 Insoluble. ......

A

64.22

97.72

B

100.00

CRANDALLITE

From Tintic district, Utah, 

record 3074.

Analysis of impure material by W. T. Schaller

Insoluble... _ .._ 35.13

AkOi..................... 25.16

SrO....................... 1.44

CaO...................... 4.88

MgO.... .............. 0.61

H2 0-.................... .84

H3 0+.................... 12.26

FERROUS PHOSPHATE

80s 2.47

PaOj . 17.61

100.40

An unclassified iron phosphate, collected by F. W. Horton at Climax mica 

mine, near Custer, S. Dak. Analysis by E. P. Henderson, record C-1064.

Insoluble. .... __ 0.97

MgO.............. .... 1.87

CaO. .............. 4.15

MnO.. . ... 3.31

FeO...................... 36.87

KjO.. 

NaaO. 

A12 03 .

2.01

6.42

2.03

1.50

39.82

HjO...................... 1.11

F.... ................ Present

100.06

METATORBERNITE

From southeast end of block fault running through Temple Mountain, Utah. 

Collected by F. L. Hess and described in Bull. 750, p. 70, 1925. Analysis by 

W. T. Schaller, record C-314-a. A, As received; B, with impurities deducted.

uo»... .........

C*nf\

PjOj .......

A

35.86

.05

[11. 16]

B

55.82

AO

17.37

HjO. ....... ....

CuO. ........

A

0.13

11.08

5.96

B

0.20

17 9^

9.28

A

35.76

100.00

B

100. 00

PHOSPHORITE

Although a large number of analyses of phosphate rock have been made in the 

Survey laboratory, most of them were restricted to the determination of PzOi 

only. Those given below are also very incomplete, but they involve some additional constituents. A-F, collected by G. R. Mansfield, G I by J. T. Pardee. 

Analyses by J. G. Fairchild, record C-564, C-577, C-579, and C-923, except E 

and F by R. K. Bailey, record C-220.

A. From Paradise Valley, Idaho, SEJ4NWM sec. 22, T. 2 S., R. 39 E.

B. Same, NWM sec. 17, T. 2 S., R. 39 E.
118 ANALYSES OF ROCKS AND MINERALS, 1914-36

C. Ammon quadrangle, Idaho, NE#NW# sec. 17, T. 2 S., R. 39 E.

D. Portneuf quadrangle, Idaho, T. 6 S., R. 39 E.

E. Montpelier Canyon, Idaho.

F. Paris Canyon, Idaho.

G. Indian Creek, Madison Range, Montana.

H. Shaly phosphate, Huntsville, Utah.

I. Duff Hill, Philipsburg, Mont.

(Al,Fe) 2 03 

Vz03 ~ 

Y. .........................

P^Oi.. .....................

A

1.84

1.57

37.15

81.10

B

1.70

1.00

20.45

44.65

C

0.72

1.32

27.56

60.20

D

0.68

.41

.04

nfi

31.98

69.80

E

0.32

.42

.23

31.73

69.37

F

0.21

.91

.18

32.76

71.52

0

6.34

1.67

32.26

70.45

H

12.27

3.92

31.38

68.54

I

4.95

29.02

63.35

TRIPIITE

A. Collected in the Black Hills, S. Dak., by F. L. Hess. Analysis by E. P. 

Henderson, record C-785.

B. From Sierra de Zapata, Catamarca Province, Argentina. Hand-picked 

dark-brown material. Analysis by E. P. Henderson, record C-949.

MnO... 

FeO 

FoiOi.. ........................ ..

-piOt.. ......... ........ ..........

H2 0... 

F.... . . PI

CaO.- 

MgO.-. 

A

1.16

37.27

15.74

5.55

31 27

1.24

7.10

19

1.60

Trace

B

0.28

34.84

23.54

01 cn

1.58

6.41

Tr<ic6

3.48

Trace

Na2O. ...........................

KzO........ . -.. - . ...._.

As2 O6 , ViOs, AlzOs. 

A

0.96

.36

102. 44

3.02

99.42

B

0.27

.33

102. 23

2.69

99.54

VABISCITE

From Lucin, Utah. Analysis by W. T. Schaller, record D-362. Originally 

described as lucinite in Bull. 610, 1916. Metavariscite is a dimorphic form of 

variscite. A, As analyzed; B, with quartz deducted.

AhOz.. ..........................

PtOt.. ...........................

HzO.... ......................

A

25.82 

31.56 

16.80

B

34.97 

42.75 

22.75

Si02 .............. ................

A

26.29

100. 47

B

100. 47

VANADATES

FERNANDINITE

Collected at Minasragra, Peru, by D. F. Hewett. Analysis with description 

by W. T. Schaller in Washington Acad. Sci. Jour., vol. 5, p. 7, 1915. Record 2948.

Insoluble In acid_.__...-.___.___ 12.18 

V2 04 ........................................ 10.18

55.42

MoOs.. . 1.38

FeaOa .79

CaO ............ ... .............. 3.35

MgO........................................ 0.06

KjO _ _ __ .52

HjO......................................... 15.81

99.69

HEWETTITE

From Minasragra, Peru. 

Schaller, record C-315.

Collected by D. F. Hewett. Analysis by W. T.

.

V2 06 - 

CaO. 

HjO..

0.43

71.20

7.15

21.04

Mo03 . 0.99

100.81
VANADATES 119

MELANOVANADITE

From Minasragra, Peru. Collected by D. F. Hewett. Analyses by W. T. 

Schaller, record C-315. 

A. Melanovanadite.

B. Alteration product, largely V205 .2H20. 

C. Matrix of alteration product.

v2 o<.. ...................

V2 05 .. ...................

CaO...... .............. _.

H2 0-. ...................

H2 0+.... ................

A

34.1

40.7

11.4

8.9

7.0

B.

7.8

73.5 ? <<

9.0

8.0

C

13 34

12.13

2

QC

} 9.71

MoOs-. ......... __ .....

A

1.3

103.4

B

1.7

103.3

C

1.58

54.69

93.80

MOTTRAMITE

From Higgins mine, Bisbee, Ariz. Described as psittacinite by Taber and 

Sciialler in Am. Mineralogist, vol. 15, pp. 575-579, 1930. Analysis by W. T. 

Schaller, record C-1075.

CuO....... __ .. _ ........-..--..-...-. 19. 10

ZnO... _____ . ____ .. ___ .... _ .... None

PbO........... ............................. i 50. 13

..................................... 21. 11

Manganese oxide.....___ _ 3.06 

Ignition loss..________ ___ ___ 4. 79

98.19

Probably low

PASCOITE

From Crescent no. 3 claim, Crescent Creek, Henry Mountains, Utah. 

by W. T. Schaller, record 2945. 

A. As analyzed. 

B. Soluble portion. 

C. Reduced, gypsum rejected.

Analysis

CaO.............. ........

S03 - . --.

A

9.35

90.60

B

17.7

13.7

C

11.6

V2 05 .. ....... ............

H2 0... ...... .............

A

99.95

B

37.1

68.5

C

65.3

23.1

100.0

RAUVITE

From Temple Mountain, Emery County, Utah. Collected by F. L. Hess 

and described in Bull. 750, pp. 68-70, 1935. Analyses by W. T. Schaller, record 

C-314-a. A, as received; B, with impurities deducted.

U03 -..-- 

VsO«... .........

VaOt.. .

PaO

KsO... .........

A

20.82

2.05

36.33

9 flft

Trace

B

27.92

2.75

48.70

2.68

FesOa- .

H2 0-. .........

H2 0+.,. .......

Se-... .........

A

2.39

7.77

5.61

B'

10.42

7 W

MgO. .......

S03 .

A

0.12

.13

24.06

101.28

B

100. 00

SINCOSITE

From Sincos, Peru. Collected by W. S. Hutchinson, Boston. Analyses by 

W. T. Schaller, record C-317. See also Washington Acad. Sci. Jour., vol. 12, 

p. 195, 1922.

A. Green rectangular plates.

B. Selected crystals.

C. Nodules consisting of 45 percent sincosite, 5 percent gypsum, about 22 

percent volatile hydrocarbon, 5 percent water, and 23 percent ash.

71413 37 9
120 ANALYSES OF ROCKS AND MINERALS, 1914-36

VtOi... ... ... ... ... ... ...

V,06 _ .

CaO......................

Pj06 ....... ....

H2 0...... ................

A

36.3

12.1

Q1 7

19.9

B

37.8

13.3 11 i

17.1

C

15.67

.33

8.81

Id 79

14.51

SOs .

A

0.3

100.3

B

0.7

100.0

C

22.86

12.86

2.23

100. 90

UVANITE

Sample from San Rafael Swell, Utah. Described by Hess and Schaller in 

Washington Acad. Sci. Jour., vol. 4, p. 576, 1914. Analyses by W. T. Schaller, 

record 2950. A, impure; B, A reduced; C, picked material.

Gangue . .

HsO .... .... ........ ,

VjOj.. .... ... ..... ...

PjOs ......... ......

UOs . . .

A

82.35

4.60

6.76

.07

no

5.74

B

26.00

38.21

.39

.11

32.45

C

1.24

18.28

37.70

.06

.05 IQ fin

FezOs ........ ..........

MgO_. ...................

CaO......................

K2 0... ...................

A

0.18

.22

.10

100.04

B

1.02

1,25

.57

100.00

C

0.04

1.73

.30

QQ nn

ARSBNATES

ARSENOBISMITE

An impure sample from the Mammoth mine, Tintic district, Utah, described 

by A. H. Means in Am. Jour. Sci., 4th ser., vol. 41, p. 125, 1916. Analysis by 

R. C. Wells, record 3009. After allowing for admixtures the mineral is calculated 

to be 2Bi 2 03.As205.2H20.

Insoluble in HOI: 

SO3 - -

BaO- ... 

Soluble in HC1:

Bi2 03 - .... -

FesOa ......-.-----

..... 16.60

..... 31.90

..... 1.42

..... 28.17

..... 10.59

..... 3.88

Soluble in HC1 Con. 

AljOs..... 

CuO....... ......

CaO...-.... ..-.

MgO -

SOsHzO-..'. 

H2 0+... .. 

 0.44

... .12

... .62

... .46

... 1.09

... 1.43

Soluble in HC1 Con. 

P»0S ..........

SbaO3 ...............

PbO. ............

.. 0.04

.. 1.26

.. 1. 12

99.14

SULPHATES

AITJNOGEN

From Pintado Canyon, N. Mex. 

George Steiger, record 3133.

Collected by E. S. Larsen. Analysis by

AhOs-- 16.59

S03 .. 37.74

HjO.. : 44.64

Insoluble -- _ --. -- ... ._ .. -------- -.. .. .._. .94

ANHYDRITE

9.91

Banded material from Caesar Grandi well 1, Eddy County, N. Mex., collected 

by W. B. Lang. Analysis by E. T. Erickson, record D-223. The nature of the 

organic matter could not be definitely determined.

Carbonaceous matter. _.._ 0.17

Ignited insoluble in acid ........ . 28

RaOs--- .03

CaO..... . ---- 

MgO 

 - 42.64

-02

SOs- ------- - 51.52

COa 5.15

Organic matter soluble in chloroform.... .05

APHTHITAIITE

Separated by F. C. Calkins from core, Government test 22, southeast corner 

sec. 26, T. 23 S., R. 30 E., Eddy County, N. Mex. Depth 1,449 feet. Analysis 

by J. J. Fahey, record D-109.

Insoluble in HjO_ _____. - . 0.06

NaCl (computed from Cl)_.__ - - . 2.16

SOs-- - ----------------------------- 46.35

KjO........ . 40.89

............. 10.42
SULPHATES 121

ARGENTOJAROSITE

From Tintic Standard mine at Dividend, Utah, submitted by V. C. Heikes. 

Analysis by W. T. Schaller, record C-486. A, yellow-brown; B, brown.

AgaO. ..........

X2 0. ...........

Na2 0. ..........

PbO. ...........

FejOs ........

A

i 17.96

C1

.79

42.26

B

2 18. 00

42

.61

. 43.07

AlsOs. -

S03 --.. ...... ..

H2 0+. .........

H2 0-. .........

P»0« .........

A

0.47 3 27. 75

9.87

B

< 28. 15

9

Q1

A

0 9Q

QQ on

3.64

B

0 9Q

100. 35

3.66

' Average of 17.94, 18.06, 17.87.

2 Average of 18.31, 17.83, 17.86.

3 Average of 7 determinations. 

« Average of 5 determinations.

BARITE

A. From Castle Islands, Duncan Canal, Alaska. Analysis by W. C. Wheeler, 

record 2881. Zinc present but not determined.

B. Collected by Theodore Chapin at Lime Point, Prince of Wales Island, 

Alaska. Analysis by George Steiger, record 3082.

SiOj.. ..........

FeaOa ~

 CaO............

SrO. .........

MgO. ..........

A

5.05

.77

.37

B

0.42

19

.06

.16

BaO. ...........

PbO..... ...... .

MnO. ........ ..

Ti02 ...... ......

A

58.60

.15

B

64.94

1Q

SOn..... ........

A

34.74

QQ Afi

B

34.01

QQ Ril

CEIESTITE

A. Concentrate from Lead Hill mine, Saline Creek, Utah. Analysis for 

G. F. Loughlin by R. C. Wells, record 3095.

B. Near LaConner, Skagit County, Wash. Determinations by A. A.

 Chambers, record 3094.

 C. Limestone partly replaced by celestite, Barstow, Calif. Analysis by 

R. C. Wells, record 3180. Described by Adolph Knopf in Bull. 660, pp.

 260-261, 1918.

D-E. Average rock samples from locality 15 miles southwest of Aguila, Ariz.,

 collected by B. S. Butler. Partial analysis by J. G. Fairchild, record C-1050. 

D, best rock; E, sample from 64 inches in five beds ranging from 7 to 20 inches 

in thickness in 8 feet of rock.

F. From Cady Range, near Argos, Calif., collected by B. N. Moore. Analysis 

by Charles Milton, record D-323.

.SIOn-.-.. -- 

.AhOa- - 

yeiOi.... ................................

FeO... ................ ..... . . 

MgO--.. .................. .......... 

 CaO......-.... .................... ...

H20............... ......... ........ 

 TiOj.~ ......................

COz .. .. . - - 

.SOi.. ...... ..............................

MnO. ...................................

B&O. ....................................

.SrO.... ..................................

PbO.. ..... .1.. ........ ..................

A

6.9

.6

.3

.3

.9

.3

1.0

1.9

34.8

Trace

45.8

6.6

99.4

B

42.23

54.80

97.03

C

39.5

12.9

D

12.91

None

.39

None

.41

.57

36.70

48.10

99.08

E

22.10

.29

.33

41.26

F

1.53

.92

.54

.11

.97

.56

.30

41.08

Trace

1.07

52.35

99.43
122 ANALYSES OF ROCKS AND MINERALS, 1914-36

GYPSUM

A. From 60-foot bed near top of Minnelusa sandstone, Sundance Canyon 

near Rocky Ford, Wyo., collected by W. W. Rubey. Analysis by J. G. Fairchild, 

record C-941.

B-C. Two samples from Fish Creek Mountains, Imperial County, Calif., 

submitted by General Land Office. Analyses by J. G. Fairchild, record C-183. 

B, NE#SWV£NW# sec. 29, T. 13 S., R. 9 E.", San Bernardino meridian; C, 

SW^NE^SEj4 sec. 19, T. 13 S., R. 9 E. San Bernardino meridian.

D-G. Four samples from Big Horn Basin, Wyo. Analyses by W. C. Wheeler, 

record 3062.

H-I. Two samples from Panasoffkee, Fla., collected by R. W. Stone, described 

in Mineral Resources for 1918, pt. 2, pp. 293-296, 1921. 'Analyses by Chase 

Palmer, record C-139. H, Bear Island, 6 inches below surface; I, Soapstone 

Island, 2 feet below surface.

J. From Muddy Creek, Nev., collected by W. W. Rubey. Analysis by 

Charles Milton, record D-320.

K. From east slope of Big Horn Mountains, Wyo., T. 47 N., R. 83 W., collected 

by D. D. Condit. Analysis by A. A. Chambers, record 3088.

Si02 -. .... -----

AhOa . .......

FezOa... ....... ... ...

MgO. ............ ...

CaO... ...... ........

HiO. ......... .......

C02 . . ... ... 

SOs ---------

C\.. .................

A

0.24

Trace

.41

32.72

20.20

1.18

45.33

Trace

100. 08

B

} 0.18

.27

32.54

20.00

.67

44.35

98.01

C

None

0.12

32.48

20.44

45.42

98.46

D

0.01

.17

.98

33.74

' 19. 50

43.92

98.32

E

0.05

.03

.44

32.92

1 19. 99

45.74

99.17

F

0.06

..05

.42

32.72

' 20. 03

45.18

98.46

G

0.25

.01

34.20

120.00

45.50

99.96

H

0.55

{~fc32.39

21.64

44.10

99.20

I

0.26

.32

32.30

21.53

45.00

99.41

J

0.2

32.8

20.8

44.9

98.7

K

0.07

.11

32.81

' 20. 40

45. 42

98.81

i At 300°.

HAIOTRICHITE

A. Zinciferous specimen from 900-foot level of Tintic Standard mine, Dividend, 

Utah. Submitted by W. T. Schaller. Analysis of a small sample by Charles 

Milton, record D-361.

Insoluble in HCL---- .. 3.98

AlaOs. 10.61

FejOs .43

FeO. - 6.67

ZnO....................... 1.65

MnO..---.....___-.-... None

CaO .................... 0.34

MgO.---....---......---.. Trace

PbO ................... .74

S03 -- . -. 33.45

.

B.tO+.

26.21

15.16

99.24

B. From Tonopah district, Nev., collected by T. B. Nolan. Analysis by

Charles Milton, record D-150.

Ash ................... 0.20

98.61

FezOs 

A12 03 . ..... ...

FeO. .... .......

ZnO ......

MnO.. ......

.... . ..... 13.84

.......... 3.08

 ... .32

..----..-- 1.50

.... ...... 7.00

BaO(?). .........

MgO.. 

80s... ... ... .... .

H2 0-. ........ ..

HsO+.... ....

.......... 0.84

. .... .18

 .. 39.40

.......... 13.23

.. ... 19.02

JAROSITE

A. Impure material collected by Adolph Knopf from Arabia district, Nev. 

Analysis by J. G. Fairchild, record C-435.

B. From Lion Hill, Chloride Point mine, Stockton quadrangle, Utah, collected 

by James Gilluly. Analysis by E. P. Henderson, record C-1058.

C. Artificial crystals made and analyzed by J. G. Fairchild, record D-205. 

Described in Am. Mineralogist, vol. 18, p. 544, 1933, with other jarosites.

SiOz....... ....... ...... -

AhOs ... ... 

FesOa--. ~ 

NasO ................

K2 O___ ...................

HsO- ... 

HjO+ ................

A

1.7

60.9

6.0

.2

9.7

B

1.43

4.01

40.22

.90

9.16

} 11.25

C

48.1

9.5

10.3

80t ...................

PtOi.. ...................

A

20.9

QQ S

B

33.15

100 12

C

32.1

100.0
SULPHATES 123

KORNEIITE

From Tintic Standard mine, Dividend, Utah. 

record C-487.

Analysis by W. T. Schaller,

S0j. 

HaO.

 ................................................... .. ..... ... .. 29.23

 . . 43.15

-- -_ . --..-.. .. . 25.96

Insoluble- ................... ____ ... _ .......... __ .. __ __ ... _ .. __ _ _ .. .86

Soluble residue. ------ -... ----------------------- -----......-.-.- .62

LANGBEINITE

99.82

From McNutt well 1, sec. 4, T. 21 S., R. 30 E., Eddy County, N. Mex., depth 

1,430 feet. Analysis by J. J. Fahey, record C-1032.

KaO......................................... 22.37

NajO......-...-... ....................... .48

MgO ..................................... 19. 15

SOs.-~..................................... 57.44

Cl........................................... None

CaO........................_............. None

Loss on heating..__.____.... ... 0.25 

Insoluble in HsO:

FesOa.---------_--.--..--_.......... .02

Other insoluble matter.... . .03

9.74

IEONITE

Prom Joe W. Mitchell core, 1,368 feet 1 inch to 1,368 feet 3 inches, sec. 33, 

T. 20 S., R. 31 E., Eddy County, N. Mex. Analysis of impure material by 

E. P. Henderson, record C-1041. A, Material as analyzed; B, analysis recalculated after deducting 25.3 percent of kainite.

K -. .......... .

K2 0. ....... ......................

MgO............ .................

SOj 

A

3.97

18.95

12 42

40.80

B

25.74

11 31

44.36

HjO. ........ -.-.. ...... ......

CL. ...........................

A

19.18

3.61

99.74

B

18.59

100. 00

MELANTERITE

Copper-bearing melanterite from Rico district, Colo., collected by E. B. Eckel 

and described in Am. Mineralogist, vol. 18, p 449, 1933. Analysis of wet material 

by R. C. Wells, record D-146. The analysis calculates roughly to 2[FeSC>4. 

7H2 0].(Cu,Zn)S04 .7H20.

FeSOi.THaO.. 67.1

CuS04.7HaO----.-...-.-.--.---.------.-------------------------------------- 24.9

ZnS04 .7H2 0..-...... 4.2

Mg.__ . __ .. ._____...._.....____... ____---. -.-.... None

Excess HzO (by difference)-........-.........-.. .-..- ..- 3.8

MINASRAQRITE

100. 00

From Minasragra, Peru. Collected by D. F. Hewett. Analysis by W. T. 

Schaller, record 2947, with preliminary description in Washington Acad. Sci. 

Jour., vol. 7, p. 501, 1917. A, as analyzed; B, minus impurities.

V3 04 

FeO. ...-..--.-.--.-. ...........

NiO._ 

CaO.. 

SOi 

A

5.29

.97

.46

10.92

B

24.64

33.17

A

66.16

14.28

100. 00

B

42.19

100. 00

MIRABIIITE

Analyses by R. C. Wells, record C-912 and C-666. 

A. From Lake 32, east of Soap Lake, east of Malott, Wash. 

B. From lake south of Cody, Wyo., S^NEX sec. 14, T. 52 N., R. 102 W. 

Partly dried Glauber's salt.
124 ANALYSES OP ROCKS AND MINERALS, 1914-36

H2 0_ . ........................ ..

NaHCOs. - - 

NaCl. ............................

MgS04 . - ..............

A

0.08

50.90

.33

oo

.18

B

0.3

49.5

Fe, Ca, B ... _- __ 

NaSOi.. .........................

Fe, Ca, Mg, 01, COs 

A

None

48.28

100. 00

B

50.2

None100.0

PIUMBOJAROSITE

Two samples collected from Yellow Pine district, Nev., by Adolph Knopf. 

Described in Bulletin 620, pages 7-8, 11, 1916.

A. Analysis by R. C. Wells, record 3001, corrected in 1922. Specific gravity 

3.458.

B. A bismuth-bearing variety. Analysis by R. C. "Wells, record 2985.

SiOa 

AlaOs- --- -

Fe203- -----

MgO........ ... .

CaO..... ....

NaaO. 

KaO... 

HjO-.. .

A

1.14

80

38.90

.49

.45

.76

.10

(U

B

6.90

.14

32.24

.14

.06

C9

.22

.02

HaO+.. 

TiOj...- .......

C02 ... ....

PaOs 

803 PbO . 

CuO. ...........

A

10.77

2.53

24.60

18.44

B

8.55

.37

.43

Trace

24.08

16.75

1.97

6.34

AssOj.. .........

Au . ..........

PPd. ...........

Pt. .............

Ag..............

A

99.92

B

0.09

.79

.22

.05

Trace

99.88

POLYHALITE

A. From Bryant well of States Oil Corporation, 9 miles south of Midland, 

Tex., depth 2,305-2,425 feet, collected by D. D. Christner. Partial analysis by 

R. K. Bailey, record C-243.

B, C. From McDowell well, Glasscock County, Tex., depth 1,000-1,400 feet. 

B, Brick red; C, salmon-colored. Collected by R. S. Sternbergh.

D. From Stassfurt, Germany. Analyses B-D by George Steiger, record 3287.

E. From Government test 17, depth 2,611 feet 6 inches, sec. 28, T. 20 S., R. 

33 E., Lea County, N. Mex., submitted by W. B. Lang. Analysis by L. T. 

Richardson, record D-23.

R&s..... .................................

MgO. ....................................

CaO.... ____________ . ______ .

NaaO . 

K2 0. .....................................

H2 0. .....................................

803 .... .... ... .... ........................

Cl _____.__.._..___.__._.

A

0.22

.35

7.05

18.14

2.06

15.63

.35

B

0.27

6.48

18.75

15.66

6.07

52.40

99.63

C

0.39

6.16

18.54

.20

15.37

6.50

52.60

99.76

D

0.47

6.52

18.42

.09

15.36

6.43

52.68

.69

100. 66

E

0.40

6.97

18.66

15.66

6. 39

51.83

.11

100. 02

SALINE CRUST

From a soda lake in sec. 14, T. 52 N., R 102 W. sixth principal meridian, 

Wyoming, collected by J. D. Northrop. Analysis by J. G. Fairchild, record 

C-619. A, Analysis; B, hypothetical combinations.

01 

SOi..... ......... .. ...

Ca.. ......... ................

Mg

Na. :. _ ___.__.___

K.. ..........................

... ....... .. 1.02

....... __ ... 55.56

. _ .... ___ 2.89

. ____ . __ 2.25

. ... 19.66

. _____ . Trace

.... ____ ... 10.93

8

m 

100. 32

NaCl..... __ ....... _ ..

CaSO4 -- 

MgS04- 

Na2S04.-.-- __ . ____ .

K2S04... ... ... ...

H2 0.... . __

... ____ ....... 1.68

 9.81

... ________ 11.23

 ... ........ ... 58.66

.. - ___ 10.93

... ... ... . 8.01
MOLYBDATES, TUNGSTATES, AND TJRANATES 125

SULPHOHALITE

From Searles Lake, Calif., described in Am. Jour. Sci., 4th ser., vol. 38, p. 273, 

1914; see also idem, vol. 49, p. 76, 1920. Analysis by W. B. Hicks, record 2903.

SOs.. . . . _ . 42.00

Na2 0..._.___.______.__________._________......_____.__ 32.50

Na..___________________._____._.______.___._____.. 11.35

CL...........__._.__..........______........._....._...._____... 9.19

F (by difference).._____________________________________ 4.96

100.00

SZOMOLNOKITE

From Tintic Standard mine, Dividend, Utah, 

record C-938.

Analysis by W. T. Schaller,

FeO....-__............... 38.94

ZnO...................... 1.18

CuO...................... .20

PbO...................... .09

(Mn, Mg)0............... None

SOs ................. 45.77

PsOs - ................. .27

HnO-__... ______ .. None

HjO+. ................... 10.45

THENARDITE

Insoluble.

0.59

2.66

100.15

A. Collected by D. G. Thompson near Buckhorn Springs, 6 miles south of 

Muroc, Kern County, Calif. Analysis by R. C. Wells, record C-266.

B. From alkali lake in sees. 22, 23, and 26, T. 25 N., R. 89 W., Carbon County, 

Wyo., submitted by H. I. Smith. Analysis by R. C. Wells, record D-9.

C. Composite sample submitted by Irvin Lavine from dry lake deposits of 

Divide County, N. Dak. Described in Am. Inst. Min. Met. Eng. Contr. 97, 

1936. Analysis by R. C. Wells, record D-397.

CaS04 ... ....... ..........

MgSO«... ................

K2S04 . .... ...

NaCl.............. .......

NaHCOs. .............

A

0.2

.2

.6

B

11.06

Trace

C

5.8

1.2

1.6

.9

Na2C03... ..... ....

H2 0. .....................

NasS04 .. .................

e

A

1.5

.3

96.9

100.0

B

0.49

88.45

100. 00

C

3.7

87.0

100.2

MOLYBDATES, TUNGSTATES, AND URANATES

CUPROTUNQSTITE

From Cave Creek, Ariz. Analysis by W. T. Schaller, record 2929. See Am. 

Mineralogist, vol. 17, p. 234, 1932.

H20 (ignition) .... 

WOs ----- 

CuO. .

Hard, compact 

material

HC1

71.75 

4.35 

13.10

7.85

HN03

71.84 

4.32 

13.24 

7.09

Soft material

HC1 

33.14 

6.43 

35.47 

19.89

HN03

34.08 

6.46 

35.26 

19.26

CaO .._. ._ 

MgO. ............

Fe2 03..~. . _

Hard, compact 

material

.88 

.20 

.61

98.74

1.08 

.12 

.68

98.97

Soft material

1.72 

.19 

1.52

98.36

1.74 

.34 

1.03

98.17

GTJMMITE

Small segregations resembling clarkeite or gummite, in serpentine, north of 

Easton, Pa., collected by R. C. Wells and C. S. Ross. Analyses by J. G. Fairchild, 

record D-145-a, made on 0.52 gram concentrated from about 15 pounds of rock. 

Age (calculated), 590 million years.

UsOs _____ _. . . __..................__. 42. 70=36.21 U

Th02 .___ .__ _ -..-..__-. __ _ 25.06=22.03 Th

Ce02 , etc...__________.__________.____________ 5.10 

PbO.. .. . .... . .. 3.86= 3.58 Pb

Insoluble..__________________._________________ 5.90
126 ANALYSES OF ROCKS AND MINERALS, 1914-36

PITCHBLENDE

From Lusk, Wyo. Rather impure. Metallic copper mentioned as seemingly 

present. Occurrence described by Larsen, Hess, and Schaller, Am. Mineralogist, 

vol. 11, pp. 155-164, 1926. Analysis by "W. T. Schaller, record C-495-a. Determination of lead made on a ^-gram sample and probably not very accurate.

Quartz, insoluble HCL... 18. 02

Cu, insoluble HC1. ------- 2. 69

S, insoluble HCL... ----- .71

SiO2( soluble... ........... 7.64

UOj.. ........... ......... 18.64

TJOi.. .................... 17.06

CuO. .................. 7.23

PbO....... ............... .23

CaO ...............

BaO... ... ........

MgO. ....... ......... .

AliO}. .................

KiO. ..................

NtaO. .................

Pi0.1 ...... .......

... 8.91

.15

.46

.63

... 2.87

qc

.69

.45

C02 .. ...... ..........

HjO-. ...............

H2 0+.. ..............

Zn, As..-------.......

... 5.42

... 2.72

... 5.54

TVflpA

100. 41

THORIANITE

From Sherrer quarry, north of Easton, Pa., collected by G. "W. Gehman. 

Average of two analyses by J. G. Fairchild, record D-154. Described in Am. 

Jour. Sci., 5th ser., vol. 26, p. 45, 1933. Age (calculated), 790 million years.

U0a ... ... ... - 4.44

U03-- 33.15

ThOj ...... ....... 38.47

PbO. --.- .. 5.21 

Rare earths....... 2.49

RaOa 1.57

CaO.._ ................. .97

MgO... ----. ....... .53

MnO. ..................... .31

TYUYAMUNITE

HS 0....................... 4.39

Insoluble..________ 7.86

99.39

From west side of Mount Killers, Henry Mountains, Utah. Submitted Dy 

F. L. Hess and described in Bull. 750, pp*. 73-78, 1925. Analysis by W. T. 

Schaller, record C-314-a. A, as received; B, with impurities deducted.

UOj... .... . -

VjO,.. .... ...

CaO....... ... ..

K>0.. .... ...

A

52.22

17.62

5.36

.47

B

57.68

19.46

5.92

.52

BaO. -___- ...

FesOs .

HiO-. .........

A

0.26

1.10

9.34

B

0.29

10.18

HjO+. .........

A

5.45

8.51

100. 33

B

5.94

100.00

UBANINITE

o

From Wilberforce, Cardiff Township, Ontario, Canada, submitted by A. C. 

Lane. Determination of lead-uranium ratio by R. C. Wells, record D-l. Calculated age, 1,125 million years.

Phil.. 

Th. Pb.

9.26

53.52

10.37

.61

U+0.38 Th

ZIPPEITE

A specimen from Grand Wash, 2 miles southeast of Fruita, \\"ayne County, 

Utah, collected by F. L. Hess and described in Bull. 750, pp. 70-73, 1925. 

Analysis by W. T. Schaller, record C-314-a. A, as received; B, with gypsum 

and carbonates, phosphates, and arsenates of copper and calcium deducted.

UOs-.------ ----------------

CaO....----.-......-.....--..

PaOs, Asa05 - . --------

H2 0 ... ..... ....... ...........

CuO 

A

72.50

97

3.73

8.77

.96

B

80.22

9.02

SOj.... ... ... ... .... ... .

A

11.11

1 Qfi

100. 00

B

10.76

100.00
INDEX

A

Actinium, relative abundance......

ores and gangue material. ......

slates and shales. ..... .

Alabamine, relative abundance.....

Alaska, ankerite. ___ .. . ___ ...

barite... ___ .. _ .. .

bravoite.. ......................

chalmersite __ _ . _ .... _ ...

gillespite... __ ..... __ .

igneous and crystalline rocks... .

platinum ____________ .

pyrrhotite ___ .- _ - ___ ...

sulphur.... ___ . ____ ..

Albite 

Albite-chlorite gneiss.. -. ___ ...

Albite gneiss... _ ___ ___ ...

Albite granite. .. __ - _ - _ ......

Albitite..- ... ..................

Allanite.--- _ __ --. __ ..

Allophane.- _ . . .

Almandine. See Garnet.

Aluminum phosphate.. _ ... ..

A uminum, relative abundance ...

Alunite.. ____ _ .

Alunogen .

Ammonioborite.. -...---- __ .....

Amphibolite _______ _ _ ..

Aplite .... ....... ...........

Page 

. ___ .. 4

. .... 46

........ 65

........ 72-73

......... 63

........ 4

........ 93

........ 121

........ 84

........ 46-47

........ 84

...... .. 89

........ 102

........ 6-7

........ 83

........ 83

........ 86

........ 83

........ 84

........ 96

........ 8

........ 8

........ 37

........ 13

........ 96

........ 96-97

........ 88

........ 116

... .... . 4

.-- 76,79,81

 .. 120

........ 115

........ 29

........ 24

........ 97

.... .... 22

41

 41

Q7

33-35, 37, 39-40 

..... 15

.... .... 32

........ 120

........ 74,93

07

.... .... 4

........ 120

........ 31-32

........ 118

........ 121

.... 28

_ ..... 4

........ 97

 99

chrvsocolla

CQnHctAtioc QTiH ohorfc

Austria, igneous and crystalline rocks

B 

Bahamas, carbonate rocks ......

Barite ............ ........... ..

Basalt. ...... 9, 12, 15, 22, 25, 28, [

Basalt tuff....... ......... __ .......

Beidellite 

Belgium, allophane-.. .

Bementite ___ .... ____ ..

See also montmorillonite. 

Bermuda, igneous and crystalline rocl

Bervllium. relative abundance ___ .

rage 

........ 94

AQ

........ 121

QQ

inn

8-11

...... 107-108

110

........ 92

49

........ 112

48-49

. - 65-66

01

 11

01

09

....... 110

..... 117-118

 . 82

....... 117

.... 120

84

80

9 11-19

....... 13

....... 40

10

....... 14

21

18

4Q

........ 11

....... 117

....... 49

....... 121

------ 4

3-35, 37-38, 40 

....... 34

....... 26

. 65-66,68,75

....... 98

....... 70,98

....... 96-97

....... 103

....... 98

J4, 66-67, 69, 71

CS __ 11

....... 99

....... 4

127
128 INDEX

Biotite ___-.__.....-.-.-...-......- 99

Biotite andesite- _... '......... 9,10

Biotite-augite andesite___________ 9-10,40

Biotite-augite latite __ 15

Biotite diorite gneiss. .. 8

Biotite-hornblende andesite..__ _____ 9

Biotite-hornblende-augite trachyte __ 40

Biotite-hornblende-quartz latite . __.. 16

Biotite latite -..-.. . 10,40

Biotite latite intrusive breccia 23

Biotite latite vitrophyre _ 9

Biotite monzonite _ - .. 23

Biotite-pyroxene andesite. . 9

Biotite-pyroxene andesite vitrophyre .. 9

Biotite-pyroxene latite-andesite ... 18

Biotite pyroxenite _ 21

Biotite-quartz latite______ ...... 15

Biotite schist -- 23

Biotite-sillimanite schist.___ 18

Bisbeeite.____.__ . . 99

Bismuth .__ ... 80

relative abundance___ 4

Bohemia, arsenopyrite 84

Bornite ____.. 84

Boron, relative abundance _ 4

Brannerite. ___ . 113

Braunite -._.__ . ......--. 89

Bravoite ___ 84

Brazil, polycrase .... 114

Breccia__________ . _. 73

Bromine, relative abundance .. 4

Cadmium, relative abundance......_ 4

Calcareous clay __ 58 

Calcite ... 74,94

See also Ores and gangue material. 

Calcium, relative abundance ...__.... 4

Caliche 57

California, anauxite _ 97 

ankerite___ '. 93 

arseniosiderite _.._.. .... .. 117

bavenite..._........................... 98

carbonate rocks . .. 50-51

celestite.. _.__ ...... 121

chromite. _ .._ 90 

clays and soils__.__ _. 66 

garnet. .. 101

gold. ................................. 82

griffithite ........... ... 102

gypsum.. ... __ 122 

halloysite ___._ ........._ 103

hydroboracite..-..-- .. 115 

igneous and crystalline rocks. _____ 11-13 

kernite.._________________ 115 

lepidolite_________________ 105 

leverrierite..__..__..... _.. 106

magnesite.._____... ..-.__ 95 

monticellite- _..-..-_..--...____ 106 

montmorillonite__ __..-_.-.- 107 

muscovite. ____..._____... 108 

nontronite._______________ 108-109 

ores and gangue material.. ___ 73 

probertite.________________ 115 

sandstones and cherts... ____ 42-43 

saponite. ........ _ 110

PageCalifornia, searlesite.. . __. Ill 

slates and shales.__ . __. 6$ 

soda niter. __.__ .. 116 

strontianite...__._ .._- 9& 

sulphohalite__.__ ...- 125* 

talc . 112'

thenardite.......... . . 125-

tincalconite...____ . __. 116. 

ulexite._______...-____...... 116:

Canada. See Ontario.

Carbon, relative abundance... ._--..... 4

Carbonate...... . .. . ...... 60>

Carbonate rocks.. 46-62' 

Carnallite... ................. ... 8T

Cassiterite ...- .... -------- ... 89'

Celestite---.- - 121

Cerite - ---- --- ..... .... 99>

Cerium, relative abundance .... 4

Cerusite...--.---. . 94 

Cesium, relative abundance... 4 

Chalmersite..._____ .._. 84 

Chert-...- 42-46'

Chlorine, relative abundance.. . 4 

Chromite ^................................. 89-90-

Chromium, relative abundance: __. 4 

Chrysocolla._._..__ . ... .. 99' 

Clay.- 52,58,65-72'

Clay minerals. See Allophane, Anauxite, 

Beidellite, Bentonite, Kaolinite, 

Leverrierite, Montmorillonite, 

Gouge clay, Potash clay, Saponite. 

Clinohypersthene... 100- 

Clinoptilolite ....... .......... 100-

Clinozoisite. - . _. 100' 

Cobalt, relative abundance. ..___ 4 

Colorado, alaskaite......- .... 84

carbonate rocks-__ ... 51 

cerite_.-.... ... . 99'

clays and soils...__ __ 67 

corvusite. .. 90- 

creedite . _.. 87' 

enargite... .. .. ..__ 84- 

galena. . ............ ... 84

gearksutite.. . 88- 

hetaerolite . 91 

igneous and crystalline rocks.._____ 13-23. 

kaolinite-__......__.........____ 105

magnetite...... _ . ____ 92'

melanterite.___._... .. ____ 123- 

microlite... - 114 

montmorillonite-___ ____.. 107-108- 

ores and gangue material.. ....____ 73-74

roscoelite_______ -------- 110-

sericite.-.. ill

slates and shales______..._____ 63 

smaltite.._..._ .... 86'.

tennantite ... .. 86 

tetradymite..____..... _.___ ST

vanoxite_..__.....- .-...---.----.. 93

Columbite ---: - - 113-114, 

Columbium, relative abundance _.-.. 4 

Concretion....___..__.-.. ..-. 64-

Conglomerate._____.___.____.. 24 

Connecticut, columbite______.. 113-114

gersdorffite____.___________ 85- 

igneous and crystalline rocks... . . 24
129

Page

Connecticut, inicrocline.._____..._-- 106 

samarskite -_____-_.-__......114-115

Copper, relative abundance... ....-...-- 4

Corvusite.._...___...._............... 90

Crandallite ..................... 117

Creedite.........__....__...-.........-- 87

Cristobalite dacite_.._......__....... 33

Cuba, carbonate rocks...--......._..... 52

chromite...___________.._.. 89

ores and gangue material....... .. 74

Cuprotungstite..- .. .. _ 125

Czechoslovakia, arsenopyrite from... .. 84

D 

Dacite............-................. ...... 12,33

Delafossite..._..._ .... 90

Diabase.....-.......-..-.-......-...-..-..-- 38,41

Diaspora....________________- 68

Diatomite________________.... 44-45

Dickite-------....-...---.-...__........ 100

Dike rocks....-......... ................ 22

Diorite.......... ......... 7,19-20, 27,32,37

District of Columbia, carbonate rocks...-.-. 52

nontronite . . 108-109 

Dolomite-.. ........... 46-47,50-51,53-59,61-62

See also Limestone and Magnesite. 

Dominican Republic, igneous and crystalline

rocks.......__......__...... 24-25

Dysprosium, relative abundance.__._-- 4

E

Elements, relative abundance..._____.. 3-5

Emery ore rock..._________..___. 42

Enargite....__.________.___. 84

England, beidellite.------................. 98

Erbium, relative abundance________. 4

Essexite.-...............................__ 20

Europium, relative abundance.______. 4

Feldspar...................___.____. 100

See also Albite, Andesine, Microcline. 

Feldspar-pyroxene andesite________.. 17,20 

Felsjte. .................. 31,37

Feraandinite.________________ 118

Ferrous phosphate. ____________. 117

Fire clay..._________._______. 69

Florida, clays and soils. __________. 67

gypsum.__________________ 122

ores and gangue material.___.___ 74

Fluorine, relative abundance.________ 4

France, arseniosiderite...__________ 117

montmorillonite_____________ 107

siderite______.__.________ 95-96

talc..............................._.... 112

G

Qabbro-..._______________.__ 39 

Qabbro-diorite._______________ 20 

Gadolinium, relative abundance______ 4 

Gahnite_________________.__ 90-91 

Galena.____________________ 84 

Gallium, relative abundance. ________ 4 

Gangue material...._________..__ 72-82 

Garnet. ... ....._.___.. 31,100-101 

Garnet-nepheline rock___________ 21

Garnet vesuvianite_.__-- -- 28

Gearksutite,..-.._.._ 8&

Georgia, calcite.______ 94

carbonate rocks... _ 52

gahnite.. .-. .. .... . ....--. 90-91

garnet---.......--...---.. . . 100-101

gold..................................... 82

igneous and crystalline rocks. _.. _.. 25

muscovite_________ __-_ 108-

schrotterite______ . 110-111

Germanium, relative abundance.. ...___ 4

Germany, polyhalite.... 124

skuttertadite_____ 8& 

smaltite._______... - . - 88 

talc . . 112

Gersdorffite.--.-....-------...-..-.--.-.--- 85

Gillespite. 102

Glaucodot_________ 85 

Glauconite. __. ....--... --------------- 102

Gneiss.............. 17,24

Gold........................................ 82

Gold, relative abundance ---- 4

Gouge clay... . - .- 109 

Granite.. 6,11-12,22-23,26,29,32,39 

Granite gneiss.-----... -- 24

Granite porphyry... ... 10,20,29 

Granodiorite. 6,7,23,27,31-32,38-39,41 

Granodiorite aplite - 32 

Granodiorite porphyry.... ... 30

Graphic granite. 13 

Graphite.... 73,75,79

Graphitic schist... 13, 76-

Greece, allophane..... 96-97

Greensand..____... . - 79

See also Glauconite. 

Greenstone.._...... .... 13,36-37

Griffithite 102

Grunerite_._............-..----------.-. 103

Gummite.. .__.-.....,....-....-.....- 125

Gypsum..__________ . ...... 122

H

Hafnium, relative abundance ... . 4

Haiti, carbonate rocks.. .. .. 52

ores and gangue material.. 74

Halite...-.--.-.-.--..-.-..-..--___....... 88

Halloysite__________________ 103

Halotrichite.. ............................ 122

Hausmannite_______......__..... 91

Hawaii, igneous and crystalline rocks.._... 25-26

Hedenbergite ._..._..-- - ... 104

Helium, relative abundance._ _--..__ 4

Hematite ...__........................ 82,91

Hematite jasper-__......... . _ 82

Hercynite.__--..-..__._ . 91

Hetaerolite_________________ 91

Hewettite.___________.._____ 118

Hisingerite.__________:..__.___ 104

Holmium, relative abundance ... 4

Hornblende._________________ 104

Hornblende andesite...____.__.__ 15,34

Hornblende-augite-quartz latlte.. _.. ___ 17

Hornblende basalt____________ _. 9

Hornblende-blotite-quartz monzonite.___ 8

Hornblende gneiss______..____... 24
130

Page 

Hornblende-mica dacite...______...... 12

Hornblende monzonite ... ....___ 18

Hornblende-pyroxene andesite...___..__ 16,18 

Hornblende-quartz latite........ -- _... 18

Hornfels-__......__....__............ 61

Hydroboracite ____________._ 115 

Hydrogen, relative abundance_____._ 4 

Hydromagnesite. . ..___ 96 

Hydrozincite . -.^. 95 

Hyperstliene-augite andesite- ........__ 40

Hyperstliene-augite latite. .......... 40

I 

Idaho, arsenic.-.. _.... 82

beidellite.--...-.-.....-.--..-..-...-.... 98

branuerite. . 113 

carbonate rocks. . . .. _. 52-53 

delafossite...__.. - ....____ 90

hisingerite____ ...___ 104 

igneous and crystalline rocks.... __... 26-28

niter________.__________ 116 

ores and gaugue material.........____ 74-76

phosphorite..... -... 117-118

potash clay..._ _.___.. 109 

sericite_..-- -- .. __.. Ill 

slates and shales... ........ 64

tourmaline.... 113

Illinium, relative abundance ... _... 4 

Ilvaito -.. 104

India, talc... -............. ......... 112

Indiana, allophane..... -..--...__ 96-97

carbonate rocks . .. __ 63 

halloysite..__.__.-.. ... _..... 103

schrotterite....... ... ............ 110-111

Indium, relative abundance... ...__ 4 

Inesite 104 

Iodine, relative abundance.... ..-..-... 4

Iowa, carbonate rocks... ....___ 63

clays and soils. _... 67 

Iridium, relative abundance... ...._... 4

Iron carbonate- . 79

See also siderite. 

Iron ores........................ 72-73,77-79,81-82

Iron, relative abundance .-. ... 4

Ironstone.- .- 64

Italy, ammonioborite .---.-.-.--.-.. .. 115

johannsenite- .. ... .. -. 105

talc. . 112

Jaboncillo.__________________ 80

Japan, halloysite..________.____ 103

hedenbergite.-.___.._______- 104

Jarosite.. -._ .- 122

Jasper..---..-..--_--...... .--.._.... 82

Jeffersonite____._____________ 105

Johannsenite.----.----..--.- ....__..... 105

K 

Kaim'te. 88

Kansas, carbonate rocks... _______ 53

Kaolinite_______.__.._______ 76,105

Kentucky, allophane____.________ 96-97

carbonate rocks...____________ 53

muscovite_ .. ...._._ 108

Keratophyre...___..___________ 31-32 

Kernite.-------------------------------..... 115

Kersantite.... ...__ 27

Kolm.............. ...... ............. 64

Page 

Kornelite..___.___.___.____... 123

Krypton, relative abundance____._... 4

Lamprophyre.-... _-___.._......... 32,41

Langbeinite..________.________ 123 

Lanthanum, relative abundance.._____ 4 

Laterite..._.....___..__....___.. 68

See also Clay. 

Latite........., 11,13,15-18, 20-21, 30,32, 34-36,40-41

Latite-andesite.._.._.................... 16,18

Lava.---..------..-.-...........--.. 7,25-20,28,30

Lead-. .'- ... .. 80,83

Lead, relative abundance_.....____ 4

Leonite...___________________ 123 

Lepidolite______._____._____ 105 

Leuchtenbergite_....__.___.---.. 106

Leucoxene___________......... 91

Levervierite-....__.-.____--------__ 106

Limestone.________._____ 46-48,51-62

See also Dolomite and Marble. 

Limonite.---..-.-.-----------__--------- 76-78,92

Lithium, relative abundance.-----___..- 4

Lorettoite._______._______.... 88

Louisiana, clays and soils__________ 67 

Ludwigite__. ____________._ 115 

Lutecium, relative abundance__.--.___ 4

M 

Magnesite_______________ 50,55-56,62,95

See also Carbonate rocks and Dolomite. 

Magnesium clays. See Saponite. 

Magnesium, relative abundance.. ____ 4 

Magnetite-___.___.__.__.____ 92 

Magnetite-hematite jasper_.._ .-.--.. 82 

Magnetite jasper......___.......____ 82

Maine, clays and soils.......___.....__ 67

igneous and crystalline rocks. .-..__ 29

montmorillonite.__..____..__.. 107 

Manganese_------________. 74-75,77,81

Manganese, relative abundance_-_____ 4 

Manganese ore.._________-_____ 42

rocks associated with.................... 48

See also Hausmannite. 

Marble--------.-.------.-...-...--..- 46-47,52,60

See also Limestone and Dolomite. 

Marl.......................... ...

Marlstone..---..-------._'...-..

Maryland, carbonate rocks..__.

igneous and crystalline rocks.

talc ----- ---. ... 

Massachusetts, carbonate rocks...

...... 52,57

...... 51

...... 53

...... 29

.---.- 112

... 54

garnet-.__________._______ 101

igneous and crystalline rocks_____... 29

Masurium, relative abundance.._...-__ 4

Maucherite_..______.._-._-__ 85

Melanterite...________________ 123

Melanovanadite..-------__.--_.--..__ 119

Melilite..-..........-.-...-..--__......... 21

Mercury, relative abundance__ ___ 4

Metaconglomerate_._.__... ___ 24

Metagabbro.___________ .-_... 37

Metatorbernite________________ 117

Mexico, aluminum phosphate......____ 116

beidellite_____________-..____ 98

dickite__________________ 100

johannsenite -...__..... 105
INDEX 131

Mexico, montmorillonite -_.___...... 107

Michigan, grunerite... ..............._. 103

Microcline........_........_..._.._ 106

Microlite- 114

Minasragrite..... . .-.. ... __ 123

Mirabilite...-.-..- ................... 123-124

Miscellaneous localities, clays and soils...... 71-72

Mississippi, beidellite-..-_.._.____.. 98

clays and soils.. ... ............ 68

halloysite._________...._____ 103

igneous and crystalline rocks............ 30

montmorillonite.-. ........._ 107

ores and gangue material............__ 75

Missouri, clays and soils..................... 68

glauconite. ... .... 102

kaolinite. ... ...... ... 105

siegenite ... .. ..-.. 86

topaz.. ....... 113

Molybdenum, relative abundance......._ 4

Monchiquite...- --- ---- - 19

Montana, beidellite.-....... ............. 98

carbonate rocks . .. 54 

hematite- ...... 91

igneous and crystalline rocks... _... _ 30

phosphorite. . 117-118

Monticellite.--..-----------.---------------. 106

Montmorillonite. --.-----...---.------.- 107-108

See also Bentonite. 

Monzonite.---.----.--------.-.- 12,18,23,31-32,36

Mordenite -.-.-.-- ...... .... .... 108

Mottramite.------------ -- --- 119

Mud..- 49,69-70

Muscovite. .. ---- 108

N

Natroalunite.--- -- - -. 73,81 

Neodymium, relative abundance............ 4

Neon, relative abundance.... 4

Nephelite basalt... ........ 28

Nephelite-haiiynite-alnoite.... 30

Nephelite syenite. -. 30 

Nevada, carbonate rocks. 54-57 

cassiterite...-. .__-... . 89 

clays and soils. ... . 69 

glauconite.- . . 102 

gold . I 82

gypsum..... ..... 122

halotrichite ...... ...... 122

hydromagnesite.. ..... 95

hydrozincite 95 

igneous and crystalline rocks... .. 30-33 

Jarosite -- 122

leuchtenbergite..... .. 106

leverrierite._ - . 106 

magnesite.._ . 95 

monticellite... - -. - 106 

ores and gangue material........ ..-. 75-76

penninite . . 109

plumbojarosite.... . 124

sandstones and cherts... 43

saponite .- - .. 110

New Jersey, glauconite . 102

igneous and crystalline rocks.... 33

jeflersonite.. .... 105

johannsenite- . 105

New Mexico, alunogen.. _ .. 120

	Page

New Mexico, anhydrite.__.._______ 12ft

aphthitalite...... .., ............. 120

calcite...-_ . .___.__.. 94

carbonate rocks_..._____..___ 57

carnallite._____._____.____ 87

glauconite- .____..... ____.. 10?

hedenbergite......_.___.__.___ 104

igneous and crystalline rocks. _____ S3-3&

johannsenite........___...._... 105

kainite..___._____________ 88

langbeinite.___.___________ 12*

leonite......______________.. 123

montmorillonite____._______ 107-108

muscovite.________________ 10S

nontronite__.____..._... 109

ores and gangue material.,___.___ 76

polyhalite....._.._......... .......... 124

samarskite________________ 114

sandstones and cherts.._________ 43

sulphur..... .... ........... .. 83

tetradymite............................. 87

New York, albite_______.___.___ 9&

allophane ____..____--..-_.. 96-97

carbonate rocks___. ________ 57

igneous and crystalline rocks ..... __ 36-

microcline.______._____..._ 10&

ores and gangue material.._______ 76

serendibite.._____ ________ ill

spinel...........___.._______ 9$

Nickel, relative abundance...._..___ 4

Niter .. . 116

Nitrogen, relative abundance.__._____ 4 

Nontronite..........._...._......__. 108-109

Norite............. .................... 38

North Carolina, ankerite.._________ 93

calcite___________ _____ 94

gahnite__________________ 90-91 

garnet..._........................... 100-101

halloysite . 103

hedenbergite.________ .____ 104

igneous and crystalline rocks. ______ 36

kaolinite ..... 105

limonite._____...___________ 92

magnetite..._______________ 92

muscovite_...._..__.._.._ 108

nontronite_.____._________ 109

ores and gangue material......_..__ 76

pyrite.. . 85

spadaite________.__..__.__ 112

sphalerite____------________ 86

North Dakota, thenardite___._...__ 125

Obsidian..................... ......... 33-34,40

Ohio, carbonate rocks... . 58

slates and shales... 64

Oil sand - - _- 42,44,46,53

Oil shale. . 63-64

Oklahoma, carbonate rocks.. 58 

dickite - -- 100

sandstones and cherts.. . 44 

Oligoclase andesite..... . . 37

Oligoclase diorite..-. .---. ........... 37

Olivine andesite_ .. 15,35 

Olivine-augite andesite._ .. -, 33
132 INDEX

Olivinebasalt _______ 9,38

Olivine essexite..__.__._..._._.___ 20

Ontario, glaucodot _... _______ 85

maucherite.. ..... ____.._ 85

nraninite.. _.... ____..... 126

Oregon, carbonate rocks_ ...__....... 58-59

chromite_.______-----_-..._.. 90

glauconite ... . ____-.... 102

igneous and crystalline rocks _ ___... 36-38 

johannsenite .. . . .. ... 105 

niter.____....____..________ 116

platinum.. ... .......... 83

. sandstones and cherts...._____.__ 44-45

Ores...- - . - --- 72-82

Osmium, relative abundance-.-...... 4

Oxygen, relative abundance........... ... 4

Palagonite tuff....... . 26

Palladium, relative abundance.... .. 4

Panama, beidellite..._ .. 98

carbonate rocks. .... 59

igneous and crystalline rocks _ _ .. 39

Paraffin earth.___ .... .__......... 67

Pascoite__ . ................. 119

Pegmatite-.-.-.--_ 24,29,36

Penninite..... .. ....---.-. ...... 109

Pennsylvania, antigorite -. 97

carbonate rocks.... 59

clays and soils__.. ... .. 69

gummite... . 125

igneous and crystalline rocks...... 39-40

phlogopite ... 109

pyrite.- . 85

thorianite.-. _ . 126

Peru, fernandinite...... . 118

hewettite_ __ ... 118

melanovanadite.._ ........ 119

minasragrite .. 123 

sincosite._ .. . 119-120

Phlogopite.. 109

Phonolite -........ ... 11

Phosphates 116-118

Phosphor! te... ----- - - - 117-118

Phosphorus, relative abundance.. 4 

Phyllite . 39

Pitchblende.._______.. _ . 126 

Platinum-.-.. 83

relative abundance.. 4 

Plumbojarosite.. 124 

Pollucite..------------.-- _.......... 109

Polonium, relative abundance._ -.-.. 4 

Polycrase____..___ . 114 

Polyhalite 124

Porphyry. ......... .. 17-20,23,27,29-30,32,37,39

Potash clay... ... - 66-67,69-70,109 

Potassium, relative abundance.... _... . 4

Praseodymium, relative abundance... 4 

Probertite._________..___ ... 115 

Protactinium, relative abundance. ___.... 4

Psilornelane....._.. ... ... 92 

Pumice......__...____ __ ... 34,38

Puerto Rico, pyrolusite . 92 

Pyrite.....i______ ..._____ 85

Pyrolusite...__.___._-___ . 92 

Pyroxene . 31

Pyroxene andesite _____________ 12, 15,20 

Pyroxene basalt.. ... __ _ __ __ ... _ 12 

Pyroxene diorite _ _ .. ___ _ __ ___ 20 

Pyroxene-hornblende andesite. __ .. __ ..-- 15 

Pyroxenite.,..- .. __ ___ .. ___ .. 21 

Pyrrhotite... _ . _______________ 86

Q

Quartz-albite gneiss. -... 

Quartz andesite--. ____ _ _ .. 

Quartz basalt _ ------- _ .. _ .

Quartz-biotite-pyroxene latite-andesite.

8 

35 

33 

16

Quartz diorite-- _ -.-.. _ _ .. ___ 7,8,27,37,39 

Quartz diorite gneiss.--..--. __ ... _ .. _ . 8 

Quartz gabbro _ -.--..-. _ ... ___ __ ... 39 

Quartz latite. .. .. 15-16,18,20-21,34,40 

Quartz latite porphyry.. __________ 27 

Quartz monzonite. ___________ 7,8,12,31-32 

Quartz monzonite porphyry. _______ 10, 14, 23 

Quartz-olivine-pyroxene andesite. ... ___ .. 33 

Quartzite ___________________ 29

R

Radium, relative abundance._....____ 4

Radon, relative abundance... .___ 4 

Rauvite____________________ 119 

Rectorite . .. _.--.- ..__... 110 

Reef material.________________ 49,52 

Reflnite. .--- _--..---.-... 69 

Rhenium, relative abundance-...--.___ 4 

Rhodium, relative abundance._______ 4 

Rhodochrosite_____-.-.___..__ 48-49,95 

Rhyolite. .... . 10-11,17-19,23,26-27,30,34,38

Rhyolite obsidian......___________ 33

Rhyolite pumice.-.. _ 34 

Rhyolite tufi................................ 15,34

Roscoelite.-- 110 

Rottenstone.__... ______._____ 69 

Rubidium, relative abundance._______ 4 

Ruthenium, relative abundance..._____ 4

Samarium, relative abundance..---------_ 4

Samarskite.__________._____ 114-115 

Sand 65

Sandstone....._______________ 28,42-46

Saponite...... . 110

Saprolite...__-.-. ____ ___. 76 

Sardinia, allophane... __ ____ 96-97 

Scandium, relative abundance. -.....-- 4

Schist...-. . 10,13,18,23,25,29,36,39,41-42 

Schrotterite..-_-_.--_ .-. .__ 110-111 

Scotland, saponite......__._ ..... 110

Searlesite..._____ ___ ... 111 

Selenium, relative abundance - ... 4 

Sepiolite-_____...____ _...-. Ill 

Sericite . 111 

Sericite schist.__._____________ 25,36 

Serendibite. . 111 

Serpentine. _... .-.. 11,112

See also Antigorite.

Shale- . . . 63-65,69 

Shattuckite..._-___ . ____ 112 

Shonkinite- 19,21

Shonkinite porphyry 19
INDEX 133

Siderite 68,74-75,95-96

Set also Ores and gangue material and Iron

carbonate.

Siegenite.__________________- 86 

Silicon, relative abundance...._......_.. 4

Silver....................................... 80

relative abundance....____.___. 4

Sincosite....._......_................. 119-120

Skutterudite. .__._...___...___. 86 

Slate........................................ 63-65

Smaltite...-----__........................ 86

Soapstone _ . ___.. 41-42 

Soda niter................................... 116

Soda rhyolite ............._............. 17

Soda syenite.._________._.____ 19,21 

Sodium, relative abundance .... __... 4

Soil . 65-72

Solfataric mud....___..____.._. 12

South Carolina, garnet_..___ ___.. 101

ores and gangue material___ ___- 76

South Dakota, beryl......................... 99

biotite__.__________..___. 99 

carbonate rocks_________..___- 60 

clays and soils.____ _________ 69 

ferrous phosphate___________ 117 

ores and gangue material... ___. 77 

pollucite_________._______ 109 

triplite.................................. 118

Spadaite...._____..__________ 112

Spain, halite....___.____________ 88

Spessartite. See Garnet.

Sphalerite_________________.. 86

Spherulite.....................- ......... 19,34

Spinel....................................... 93

Strontianite.......-.......--_......_..... 96

Strontium, relative abundance_...____ 4 

Styria, schrotterite........................ 110-111

Sulphohalite.._____.__.__.____ 125 

Sulphur..................__............... 83

relative abundance.. __ ____ 4 

Sweden, slates and shales__________ 64 

Switzerland, maucherite.._________. 85 

Syenite ....................._....... 19,21,33,41

Sylvinite....................___.......... 88

Sylvite............. ...... ......... 89

Szomolnokite_______________ 125

Talc............ ........ .......

Tantalum, relative abundance. 

Tellurium, relative abundance 

Tennantite ________ 

Tennessee, calcite. ......

carbonate rocks ____ _

clays and soils.

........ 112

.... 4

. ___ 4 

86 

94

_ _ 60 

__ 70 

garnet _ . _ ...--.. _ ....... __ .... 100-101

hedenbergite _____ _________ 104 

lorettoite... __ . _ .. ___ . ____ .... 88

ores and gangue material... .... . 77

potash clay. __ . _ ............... __ . 109

pyrolusite ________________ 92 

rhodochrosite --.-. _________ 95 

Tenorite ____________________ 93 

Terbium, relative abundance. ________ 4 

Tetradymite... ____ __________ 87 

Tetrahedrite . _ ..... ............. __ 87

Texas, analcite.____________..__ 97

braunite..__............ ........... 89

calcite....___________..___ 94

carbonate rocks....___ . 60

clays and soils_____ _ _.. 70

halite....__........... .. ..... 88

halloysite_____.__._._____ 103 

montmorillonite_____...____ 107-108

ores and gangue material..... ____.. 77-80

polyhalite._______ ___._ 124

siderite___._____ .._...... 95-96

sylvite........ ....................... 89

Thallium, relative abundance..... _ 6

Thenardite.................................. 125

Thorianite__________ ______ 126

Thorium, relative abundance 5

Thulium, relative abundance................ 5

Thuringia, maucherite-... . 85

Tin, relative abundance___ ... ... 5

Tincalconite..________. . ___ 116

Titanium, relative abundance............... 5

Topaz......._.............. ....... 113

Tourmaline_..________________ 113 

Trachyte... ........................ 11,26,31,40

Trachyte porphyry.. __ 39 

Travertine...... ....-..-. ... 52-53,62

Tridymite latite... 16

Tridymite latite-andesite_. _..___ 16 

Triplite._......_........._.__._ 118

Tuff ............................ 15,26,34,64

Tungsten, relative abundance. ... 5 

Tungstenite............_.... ...... 87

Tyuyamunite... _ . 126

U 

TJlexite ................................... 116

Uncompahgrite__ ___ . 21 

Uraninite................ .............. 126

Uranium, relative abundance 5 

Uranophane . . 113 

Utah, analcite___......_.......__.... 97

argentojarosite......__............... 121

arsenobismite___.._. _..__.. 120 

autunite... . 117 

beidellite_________ _____ 98 

carbonate rocks ....'.. Cl

carnallite_ . 87 

celestite..________________ 121 

cerusite.._... ___ .. 94 

clays and soils.__.-----.---... 70

crandallite________ ____... 117 

halloysite.... -_ . 103

halotrichite________________ 122 

igneous and crystalline rocks.... 40-41

Jarosite...-- . ................. 122

kornelite__..______.._____ 123 

limonite_________ _____ 92 

ludwigite... . ... .. 115 

metatorbernite..... 117 

montmorillonite___... _.. 107-108 

mordenite________ . . 108 

ores and gangue material. 80-81 

pascoite..... .. 119

phosphorite...... ..... ....... 117-118

rauvite . 119 

sandstones and cherts... 45-46
134 INDEX

Utah, saponite..-..- ..........__ 110

sepiolite. .. .. 111

spadaite 112

szomolnokite........_.__......_... 125

tenorite-- .................. 93

tetrahedrite._ ... . 87

tungstenite . 87

tyuyamunite_._._________... 126

uvanite... .............................. 120

variscite ~ ............. 118

zippeite_.... . ....... .......... 126

Uvanite.-..-.....-- .................... 120

Uvarovite. See Garnet.

Vanadium, relative abundance. 5 

Vanoxite.._.._........ .............. 93

Variscite.-..--.----------------------------. 118

Vermont, serpentine 112

Virgin Islands, igneous and crystalline rocks. 24-25

Virginia, bornite.. 84

carbonate rocks 61-62

clays and soils. 70

clinohypersthene.--- ... 100

clinozoisite.._ _._________ 100

feldspar................................ 100

garnet__________________ 100-101 

gearksutite..... 88

grunerite. . 103 

hedenbergite_ ...._... 104

hercynite.. 91 

hornblende- ..-. 104 

igneous and crystalline rocks. 41-42 

microcline. 106 

ores and gangue material.. 81 

sandstones and cherts. ___._.___ 46 

sericite.-. _ ... Ill 

wad.. . . ........ .. 93

zinnwaldite.-------__--.._-__ 113

Virginium, relative abundance. 5 

Vitrophyre_...-..-.--....----. .--..-. 31

Volcanic ash........................... 12,13,32,70

Volcanic glass..... . 35

W Page 

Wad.. . .. - . _.... 93.

Washington, bementite __________ 9& 

carbonate rocks__..---..___...-._ 62"

celestite..________________ 121 

clays and soils..._. ..-.____.. 71 

hausmannite.---..__.-..______.. 91 

ilvaite___________________ 104- 

inesite... . 104 

magnesite..........-.- ... ... 95'

mirabilite.________________ 123-124 

ores and gangue material...... .... 81

West Virginia, carbonate rocks..... ____ 62' 

sandstones and cherts... ... __ 46-

Wyoming, allanite.._ . _ 96- 

carbonate rocks.. . .. 62 

chromite..________________ 89-90- 

clays and soils.__ .. 71 

gypsum..._____ 122- 

mirabilite--.--.__--.......-...---.. 123-124;

ores and gangue material........____ 82-

pitchblende-___...__..__.___ 12ff 

pyrite._______..____.__... 85 

pyrrhotite.___.. 86; 

saline crust...._...__________ 124

slates and shales._............. . 64-65-

thenardite_________________ 125 

uranophane.__....-.---.-.___..__ 113

Xenon, relative abundance.

Ytterbium, relative abundance. 

Yttrium, relative abundance...

Zinc, relative abundance.. 5

Zinnwaldite__.___. 113

Zippeite........_____ . 12ft

Zirconium-bearing sand 74

Zirconium, relative abundance 6

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