Glossary of Uraniumand Thorium-Bearing 

Minerals

THIRD EDITION

GEOLOGICAL SURVEY BULLETIN 1009-F

This report concerns work done on behalf 

of the U. S. Atomic Energy Commission 

and is published with the permission of 

the Commission

A CONTRIBUTION TO THE GEOLOGY OF URANIUM

GLOSSARY OF URANIUM- AND THORIUM-BEARING

MINERALS

THIRD EDITION

By JUDITH WEISS FRONDEL and MICHAEL FLEISCHER

INTRODUCTION

The first edition of this work was published as U. S. Geological 

Survey Circular 74 in April 1950; the second edition was published as 

Circular 194 in February 1952. ^Research on the radioactive minerals 

has continued to be active, and this third edition contains many 

additions, revisions, and corrections, and brings the glossary up to 

date as of July 1954.

The compilation of this glossary is part of a continuing systematic 

survey of data on uranium and thorium minerals and on minerals that 

contain traces or more of uranium or thorium. This survey, part of 

the work being done, by the U. S. Geological Survey on behalf of the 

U. S. Atomic Energy Commission, consists of collecting authoritative 

chemical, optical, and X-ray diffraction data from the literature and 

adding to these data, where they are inadequate, by further laboratory 

research. The results obtained are published from tune to tune as 

separate papers, and a comprehensive monograph on the mineralogy 

of uranium and thorium is in preparation.

The glossary is divided into three sections: A, minerals that contain 

uranium or thorium as major constituents; B, minerals that contain 

minor amounts of uranium or thorium; and C, minerals that probably 

do not contain uranium or thorium, but which have been reported to 

contain impurities or intergrowths of uranium or thorium minerals. 

Many of the minerals listed are'highly variable in composition, some 

varieties containing much, some little uranium or thorium. The 

known range of composition is listed for each, but the variability causes 

the division of species between A and B to be somewhat arbitrary.

In previous editions of this glossary, a fourth group of nearly 40 

minerals was listed as minerals not reported to contain uranium or 

thorium, but which, on crystal-chemical grounds, might be expected 

to show the presence of uranium or thorium if investigated by modern 

methods. The list is not included here; we wish, however, to repeat 

that these minerals mainly those containing the rare-earth ele169
170 CONTRIBUTIONS TO THE GEOLOGY OF URANIUM

ments are well worth additional study, as shown by the recent discovery of irinite, a thorian variety of the rare-earth mineral loparite.

It is hoped that this glossary will help to alleviate the confusion 

that obscures the nomenclature of the uranium and thorium minerals. 

For many of them, the confusion will remain until more thorough 

research is done. Some species may always be subject to question 

because their type specimens have been lost, and existing specimens 

bearing the species name have been found to be other minerals; for 

example, in section A, uranochalcite and voglite. The synonymy 

has been given for each species, but it is to be hoped that the many 

synonyms that serve no useful purpose will be abandoned. Identities and group relations are indicated.

It is beyond the scope of the present publication to describe these 

minerals or to include determinative tables. We have, however, 

added very brief statements of the color of the minerals and of the 

type of occurrence. A chemical classification of the uranium and 

thorium minerals has also been added.

For most of the minerals, a reference has been chosen from standard reference books and easily available journals. Dana VI and VII 

indicate the 6th and 7th editions, respectively, of Dana's System of 

Mineralogy.

The index has 327 entries. These represent 153 species: 103 in 

section A, 39 in section B, and 11 in section C.

The question is often asked, "How many uranium and thorium 

minerals are there?" If section A is used as the criterion, there are 

about 103 such minerals to which 215 names have been applied.

We are indebted to many persons for suggestions and for pointing

out errors in the previous editions, especially to Clifford Frondel 

of Harvard University and to J, S. Vhay and J. C. Rabbitt of the 

U. S. Geological Survey. We hope that readers will inform us of 

any errors, omissions, or additional data.
GLOSSARY OF URANIUM- AND THORIUM-BEARING MINERALS 171

CHEMICAL CLASSIFICATION OF THE URANIUM AND

THORIUM MINERALS

Arsenates:

Abernathyite K2 (U02)2 (As04)2 -8H2 0 

Kahlerite Fe(U02)2 (As04 )2 -nH2 0 

Metazeunerite Cu(U02) 2 (As04)2 -8H2 0 

Novacekite Mg(U02)2 (As04)2 -8-10H2 0 

Troegerite H2 (U02)2 (As04) 2 -8H2 0 

Uranospathite Cu(U02)2 (As04 , P04)2 -11H2 0? 

Uranospinite Ca(U02)2 (As04 )2 -10H2 0 

Walpurgite Bi4 (U02)(AsO4)2 -3H2 0?

Carbonates:

Andersonite Na2Ca(U02) (C03) 3 -6H2 0

Bayleyite Mg2(U02)(C03)3-18H2 0

Liebigite Ca2 (U02)(C03) 3 -10-llH2 0

Rabbittite Ca3Mg3 (U02) 2 (C03) 6 (OH) 4 .18H2 0

Rutherfordine (U02) (C03)

Schroeckingerite NaCa3 (U02) (C03) 3 (S04)F.10H2 0

Sharpite (U02)(C03)-H2 0? or (U02) 6 (C03) 8 (OH) 2 .7H2 0?

Studtite Hydrated carbonate of U6 and Pb

Swartzite CaMg(U02)(C03) 3 .12H2 0

Voglite Ca2CuU(C03) B -6H2 0

Molybdates:

Umohoite Close to (U02) (Mo04) -4H20

Niobates-tantalates-titanates:

Ampangabeite (Y, Er, U, Ca, Th)2 (Nb, Ta, Fe, Ti) 7Oi8

Betafite (U, Ca)(Nb, Ta, Ti) 3 09 -nH2O?

Brannerite Perhaps A3B6Oi6 with A=U, Ca, Fe, Th, Y, and B = Ti.

Calciosamarskite (Ca, X, U, Th) 3 (Nb, Ta, Fe, Ti, Sn) 8015 ? X=yttrium

and other rare earths. 

Davidite AB3 (0,OH) 7 [with A=Fe2 , rare earths, U6 , Ca, Zr, and Th,

and B=Ti, Fe3 , V, Or] 

Delorenzite (Y, U, Fe2)(Ti, Sn) 3 03 ? 

Eschynite (Ce, Ca, Fe2 , Th) (Ti, Nb) 2 09 

Euxenite (Y, Ca, Ce, U, Th) (Nb, Ta, Ti)2 0« 

Fergusonite (Y, Er, Ce, Fe)(Nb, Ta, Ti)O4 

Formanite (Y, U, Th, Ca)(Ta, Nb, Ti)04 

Irinite (Na, Ce, Th),_,(Ti, Nb)[08-,(OH),] 

Ishikawaite (U, Fe, X)(Nb, Ta)04 [X=rare earths] 

Khlopinite (Y, U4 , Th) 3 (Nb, Ta, Ti, Fe) 7 020 ? 

Microlite Essentially (Na, Ca)2Ta2 06 (0, OH, F). 

Nohlite (Ca, Mg, Fe2 , X, U)2 (Nb, Zr, Fe3) 3 0,0 [X=yttrium and other

rare earths] 

Pisekite Niobate-tantalate-titanate of U and rare earths with Th and

Sn.

Polycrase (Y, Ca, Ce, U, Th) (Ti, Nb, Ta)2 0« 

- Priorite (Y, Er, Ca, Fe2 , Th)(Ti, Nb)2 06 

Pyrochlore (Na, Ca) 2 (Nb, Ta) 2OaF 

Samarskite (Y, Ce, U, Ca, Fe, Pb, Th)(Nb, Ta, Ti, Sn)2 06
172 CONTRIBUTIONS TO THE GEOLOGY OF URANIUM

Oxides:

Becquerelite 7UO3 -11H2 0

Billietite BaO.6UO3 -llH2O

Clarkeite (Na, K)2_2l(Ca, Pb),U2 07 -yH2O

Curite 3PbO-8U03 -4H2O

Epiianthinite Hydrated uranyl oxide?

Fourmarierite Probably PbO-4UO3 -7H2O.

lanthinite 2UO2 -7H2O?

Masuyite UO3 -2H2 0

Eichetite Hydrated oxide of U and Pb ?

Schoepite 2U03 -5H2O

Thorianite ThO2

Uraninite (U«i-,U8,)Qw-.

Uranosphaerite (BiO)(UO2)(OH) 3 ?

Vandenbrandeite Cu(U02)O2 -2H2 0

Vandendriesscheite Close to PbO 7U03 12H2 0

Phosphates:

Autunite Ca(U02)2 (P04)2 -nH2 0 [n= 10-12 in natural material] 

Bassetite Fe(U02)2 (PO4)2 -8H2 0 

Cheralite (Th, Ca, Ce, La, U, Pb) (P04, Si04) 

Dewindtite Pb3 (U02) 5 (P04)4 (OH)4 .10H2 0 

Dumontite Pb2 (U02) 3 (P04)2 (OH)4 -3H2O 

Fritzscheite Hydrated phosphate-vanadate of U and Mn. 

Meta-autunite Ca(U02)2 (P04)2 -nH2 0 [n=2^ to 6^] 

Metatorbernite Cu(U02)2 (P04) 2 -nH2 0 [n=4 to 8] 

Meta-uranocircite Ba(UO2)2 (P04)2 -8H2O 

Monazite (Ce, La, Th)P04 

Parsonsite Pb2 (UO2)(PO4)2 -H2O 

 Phosphuranylite Ca(U02) 4 (P04)2 (OH)4 -7H2O 

Renardite Pb(U02) 4 (P04)2 (OH) 4 -7H2O 

Sabugalite HA1(UO2) 4 (PO4)4 .16H2O 

Sateeite Mg(U02)2 (P04) 2 -8-10H2O

Torbernite Cu(UO2)2(PO4)2-12H2O 

Uranospathite Cu(UO2) 2 (AsO4 , PO4)2 -11H2O?

Silicates:

Beta-uranophane Ca(UO2)2 (SiO3 ) 2 (OH)2 -5H2O 

Cheralite (Th, Ca, Ce, La, U, Pb) (P04 , Si04) 

Coffinite U(Si04) 1 -J (OH) 4x

Cuprosklodowskite Cu (UO2)2 (SiO3) 2 (OH)2 . 5H2O

Gastunite Essentially a calcium uranyl silicate containing minor Pb.

Huttonite ThSiO4

Kasolite Pb(U02)(Si03)(OH)2

Pilbarite Hydrated silicate of Pb, Th and U6. 

Sklodowskite Mg(U02) 2 (SiO3)2 (OH)2 -6H2O 

Soddyite (UO2)s(SiO4)2 (OH) 2 .5H2O 

Thorite ThSiO4 with substitution of U.

Thorogummite Th(SiO4)i-x (OH) 4x

Tscheffkinite Complex silicate of rare earths, Fe, Mn, Mg, Ca, Al, Ti,

Th, and U. 

Uranophane Ca(U02)2(Si03)2 (OH)2 .5H20
GLOSSARY OF URANIUM- AND THORIUM-BEARING MINERALS 173

Sulfates:

Cuprozippeite Cu(U02)3(S04)3(OH)2 .llH2 0 

Johannite Cu (U02)2 (S04)2 (OH)2 6H2 0 

Meta-uranopilite (U02) fl(S04 )(OH)i0 -5H20? 

Schroeckingerite VaCa3 ((U02)(C03)3(S04)F.10H2 0 

Uranopilite (U02) 6 (S04 ) (OH) 10 -12H2 0 

Zippeite Basic sulfate of U, of uncertain formula.

Vanadates:

Carnotite K2 (U02) 2 (V04 )2 .nH2O [n=lto3]

Ferghanite U3 (VO4 )2 -6H2 0?

Fritzscheite Hydrated phosphate-vanadate of U and MM.

Metatyuyamunite Ca(U02) (V04) 2 -5-7H2O

Rauvite Ca0.2UO3 -2V205-16H2 0?

Sengierite Cu(U02) (V04 ) (OH) -xH2O [x is near 4 or 5]

Tyuyamunite Ca(U02)2 (V04 )2 -7-10.5H2 0

Uvanite U2V602 ,.15H2 0?

329106 55 2

GLOSSARY OF URANIUM- AND THORIUM-BEARING MINERALS 175

A. URANIUM AND THORIUM MINERALS

ABERNATHYITE

K2 (U02)2 (As04)2-8H2 0 

Potassium analogue of uranospinite. 

U=52.8 percent.

Color: Yellow. A rare secondary mineral.

Thompson, M. E., Ingram, Blanche, and Gross, E. B.; Am. Mineralogist 

(in press).

AMPANGABEITE

(Y, Er, U, Ca, Th)2 (Nb, Ta, Fe, Ti) 7 018 ?

Validity questionable; may be an inhomogeneous alteration product of

euxenite.

XJ=17.1 percent, Th=1.8 percent. 

Color: Brown to black. From granite pegmatite. 

Dana VII, v. 1, p. 806-807.

Hydroeuxemte

Synonym of ampangabeite. 

Dana VII, v. 1, p. 806.

ANDERSONITE

Na2Ca(U02)(C03)3-6H2 0

U=39.2 percent.

Color: Bright green. Rare secondary mineral.

Dana VII, v. 2, p. 239.

AUTUNITE

Ca(UO2)2 (P04 )2 -10-12H2 0

See meta-autunite.

U=45.4 to 48.2 percent.

Color: Yellow. Common secondary mineral.

Dana VII, v. 2, p. 984-987.

Calciumphosphoruranit 

Synonym of autunite. 

Mineralog. Mag., v. 28, p. 732, 1949.

Calcouranit

Synonyn of autunite.

Berg- u. hiittenm. Zeitung, Band 24, p. 302, 1865.

Lime-uranite

Synonym of autunite.

Brooke and Miller, Introduction to Mineralogy, p. 519, 1852.

BASSETITE

Fe(U02)2 (P04 )2 .8H2 0

U=51.0 percent.

Color: Yellow. Rare secondary mineral.

Dana VII, v. 2, p. 994-995.

Mineralog. Mag., v. 30, p. 343-353, 1954.
176 CONTRIBUTIONS TO THE GEOLOGY OF URANIUM

BAYLEYITE

Mg2 (UO2)(CO3)3-18H2 0

U=28.9 percent.

Color: Yellow. Rare secondary mineral.

Dana VII, v. 2, p. 237-238.

BECQUERELITE

7UO3 -llHaO

Isostructural with billietite.

U= 75.7 percent.

Color: Amber to yellow. Uncommon secondary mineral.

Am. Mineralogist, v. 38, p. 1019-1024, 1953.

BETAFITE

(U, Ca)(Nb, Ta, Ti) 3O9 -nH2O?

Composition uncertain; name includes several supposedly independent

species that have been united on basis of X-ray and crystallochemical study.

U=13.7 to 24.5 percent, Th=1.0 to 1.1 percent. 

Color: Yellow, brown, black. From granite pegmatites. 

Dana VII, v. 1, p. 803-805. 

Geol. Soc. Japan Jour., v. 57, p. 171-175, 1951.

Blomstrandite

Synonym of betafite.

U=16.3 percent.

Dana VII, v. 1, p. 803-804.

Titanian betafite. 

U= 13.7 percent. 

Dana VII, v. 1, p. 803-804.

Samiresite

Has been considered a plumbian variety of betafite.

TJ= 18. 7 percent.

Dana VII, v. 1, p. 803-805.

BETA-URANOPHANE

Ca(UO2)2(SiO3)2(OH)2 -5H2O 

Dimorphous with uranophane. 

U=55.6 percent.

Color: Yellow. A secondary mineral. 

Am. Mineralogist, v. 35, p. 245-250, 1950.

Sop, frang, min6ralogie bull, v, 74, p. 457-488, 1951.

Beta-uranotile

Synonym of beta-uranophane.

Cesk6 Spol. Nauk vestnfk, v. 2, p. 25, 1935.

Randite

A mixture of beta-uranophane, some tyuyamunite, and calcite. 

Am. Mineralogist, v. 35, p. 245-250, 1950.
GLOSSARY OF URANIUM- AND THORIUM-BEARING MINERALS 177

BILLIETITE , . ' 

Ba0.6U03 -llH20 

Isostructural with becquerelite. 

U=68.8 percent.

Color: Yellow. A rare secondary mineral. ' 

Am. Mineralogist, v. 38, p. 1019-1024, 1953.

BRANNERITE

(U, Ca, Fe, Y, Th) 3 (Ti, Si) 8016 ? 

. U=27.9 to 43.6 percent, Th=0.26 to 4.4 percent. 

Color: Black to brown. Rare. In granitic rocks, placers. 

Dana VII, v. 1, p. 774-775. 

Am. Mineralogist, v. 39, p. 109-117, 1954.

CALCIOSAMARSKITE

Probably (Ca, X, U, Th) 3 (Nb, Ta, Fe, Ti, Sn) 5015 (?) .

X=yttrium and other rare earths.

U=9.4 to 11.3 percent, Th=1.9 to 2.9 percent.

Color: Black to brown. Rare, from granite pegmatite.

Dana VII. v. 1, p. 772.

CARNOTITE

K2 (U02)2 (V04 )2 -3H20

H2 0 can range 1 to. 3.

U=52.8 to 55.0 percent.

Color: Yellow. Common secondary mineral.

Dana VII, v. 2, p. 1043-1045.

CHERALITE

Phosphate-silicate of Th, Ca, and rare earths.

Isostructural with monazite, conforming to monazite formula type 

AXO4 with A=Th, Ca, Ce, La, U, Pb; X=P, Si. Cheralite is 

essentially an intermediate member of a solid-solution series apparently extending between monazite, CeP04 , and CaTh(P04)2 , 

known only as an artificial compound.

U=3.5 to 5.5 percent, Th=25.9 to 27.7 percent.

Color: Green. Rare, from granite pegmatite. ' Mineralog. Mag., v. 30, p. 93-99, 1953.

CLARKEITE

(Na, K)2_2x (Ca, Pb)JJ2 07 .yk2 0

U=68.0 to 68.9 percent.

Color: Brown, reddish brown. Alteration product of uraninite.

Dana VII, v. 1, p. 624-625.

Am. Mineralogist, v. 39, p. 826-838, 1954.

COFFINITE

U(Si04)i-,(OH) 4 ,

U=60.2 percent in concentrated, but not pure sample. Most specimens associated with carbonaceous material.

Color: Black; very fine particles ( 325 mesh) pale brown in transmitted 

light.

Stieff, L. R., Stern, T. W., and Sherwood, A. M., Am. Mineralogist, 

in preparation.
178 CONTRIBUTIONS TO THE GEOLOGY OF URANIUM

CUPROSKLODOWSKITE

Cu (UO2)2 (SiO3)2 (OH)2 5H3O

Isostructural with sklodowskite and uranophane.

U=54.1 percent.

Color: Greenish yellow. A secondary mineral.

Am. Mineralogist, v. 19, p. 235, 1934.

Frondel, Clifford, oral communication.

Jachymovite

Synonym of cuprosklodowskite. 

Mineralog. Abs., v. 6, p. 345, 1936.

Kieselkupfer-uranoxyd

Synonym of cuprosklodowskite. 

Neues Jahrb., 1845, p. 297.

CUPROZIPPEITE

Cu(U02) 3 (SO4)3(OH)2 .llH2 0

Validity questionable.

Boldyrev, A. K%, Course of descriptive mineralogy, v. 3, p. 83, 1935,

Leningrad and Moscow. 

CURITE

3PbO-8UO3 .4H20

U=62.9 percent.

Color: Orange-red. An alteration product of uraninite.

Dana VII, v. 1, p. 629-631. x

Donnay, Gabrielle, written communication.

DAVIDITE

AB3 (0, OH) 7 or AB3 07

A=Fe2, rare earths, U6, Ca, Zr, Th.

B=Ti, Fe3, V, Cr.

Ideal end-member is FeTiaO?.

U as much as 4.4 percent, Th as much as 0.12 percent.

Color: Black.

Mineralog. Mag., v. 29, p. 101, 1950. 

Am. Mineralogist, v. 36, p. 563-572, 1951.

Radioactive mineral from T&te district of Mozambique

Possibly AB3 (0, OH) 7, A-Fe2 , rare earths, u«, Ca, Na, Zr, Th.

B=Ti, Fe3, U, Cr.

Near davidite.

U=2.7 percent, Th=0.06 to 0.12 percent.

Mineralog. Mag,, v, 29, p, 101-112,1950,

DELOBENZITE

(Y, U, Fe<0 (Ti, Sn) 308 ?

U=8.7 fluent.

Color: Black. Rare, from granite pegmatite. 

Dana VII, v. 1, p. 808.
GLOSSARY OF URANIUM- AND THORIUM-BEARING MINERALS 179

DEWINDTITE

Pb3 (U02)5(P04)4 (OH)4.10H2 0?

Isostructural with phosphuranylite and renardite.

U=49.5 percent.

Color: Canary yellow. A rare secondary mineral.

Dana VII, v. 2, p. 875.

Am. Mineralogist, v. 35, p. 756-763, 1950; vol. 39, p. 444-451, 1954.

Geol. Soc. America Bull., v. 64, p. 1434, 1953.

Stasite

Synonym of dewindtite.

Am. Mineralogist, v. 7, p. 196-197, 1922.

DROOGMANSITE

No chemical analysis has been made. 

May be related to sklodowskite. 

Am. Mineralogist, v. 11, p. 168, 1926.

DUMONTITE

Pb2 (U02) 3 (P04)2 (OH) 4 .3HaO

U=46.5 percent.

Color: yellow. A rare secondary mineral.

Dana VII, v. 2, p. 928-929.

EPIIANTHINITE

Possibly one of UCV2H20 polymorphs.

A rare alteration product of ianthinite.

U=87.8 percent.

Color: Yellow.

Am. Mineralogist, v. 32, p. 344-350, 1947.

Frondel, J. W., and Cuttitta, Frank, Am. Mineralogist (in press).

ESCHYNITE

(Ce, Ca, Fe2 , Th) (Ti, Nb)2 0fl

Also aeschyhite.

Part of the eschynite-priorite series,.

Th=9.9 to 15.4 percent.

Color: black to brown. From granite pegmatites and nepheline

syenites. 

Dana VII, v. 1, p. 793-796.

EUXENITE

. (Y, Ca, Ce, U, Th) (Nb, Ta, Ti)2 08 

Part of the euxenite-poly erase series. 

U=0.6 to 9.0 percent, Th=up to 4.3 percent. 

Color: Black. From granite pegmatites. 

Dana VII, v. 1, p. 787-791. 

Geol. Soc. America Bull., v. 61, p. 129-132, 1950.

Eschwegite

Tantalian variety of euxenite.

Acad. Brasileira Cienc. Anais, v. 23, p. 119-127, 1951.

Lyndochite

Variety of euxenite-poly erase, relatively high in Ca and Th and low in U. 

Dana VII, v. 1, pp. 787, 789-791.
180 CONTRIBUTIONS TO THE GEOLOGY OF URANIUM

EUXENITE Continued 

Oliveiraite

Alteration product of euxenite. 

Dana VII, v. 1, p. 791.

Tanteuxenite

Variety of euxenite with Ta substituting for Nb.

Dana VII, v. 1, p. 787, 789-790.

Am. Mineralogist, v. 35, p. 386-400, 1950.

Titanoniobile

Allied to euxenite.

Mineralog. Abs., v. 11, p. 232, 1951.

FERGHANITE

Supposedly U3 (VO4)2 -6H2O.

Perhaps leached or weathered tyuyamunite.

TJ=67.9 percent.

Color: Yellow. A secondary mineral.

Dana VII, v. 2, p. 1048.

FERGUSONITE

(Y, Er, Ce, Fe) (Nb, Ta, Ti) O4

Part of the fergusonite-formanite series.

U=0.8 to 7.2 percent, Th = 0.7 to 2.5 percent.

Color: Black, altering to brown and yellow. From granite pegmatites.

Dana VII, y. 1, p. 757-762.

Adelpholite

Synonym of forgusoniie?

A poorly defined substance, possibly an altered mossite. 

Dana VII, v. 1, p. 762, 778-779.

Arrhemte

An altered fergusonite. 

Dana VII, v. 1, p. 762.

Bragite

Synonym of fergusonite.

Dana VII, v. 1, p. 757, 759, 761.

Kochelile

Synonym of fergusonite. 

Dana VII, v. 1, p. 757, 761.

Risdrite

Synonym of fergusonite. 

Dana VII, v. 1, p. 757-758, 760-762. 

Rutherfordite

An altered fergusonite.

Dana VII, v. J. p 757 759-76O. 762. 

S'ipylite

Synonym of forgusonta

Dana VII, v. 1 p. 757 759-7HO 7t>_>

Tyrite

Synonym of fergusonifcf. 

Dana VII, v. 1, p. 757 760-7!) I
GLOSSARY OF URANIUM- AND THORIUM-BEARING MINERALS 181

:FORMANITE

(Y, IT, Th, Ca) (Ta, Nb, Ti) 04 . 

Part of the fergusonite-formanite series. 

U=l.l percent, Th=l.l percent. 

Color: Black. From placers. 

Dana VII, v. 1, p. 758, 760, 762.

:FOURMARIERITE

Pb0.4U03 .7H3 0 or Pb0.4U03 -8H2 0

U=63.7 percenter 63.0 percent.

Color: Orange-red. An uncommon alteration product of uraninite.

Am. Mineralogist, v. 33, p. 619-621, 1948.

FRITZCHEITE

Mn(UOa)2 [(P, V)04]2-8HaO?

No analysis available. May be the manganese analog of torbernite.

Color: Reddish brown. A rare secondary mineral.

Dana VII, v. 2, p. 984.

GASTUNITE , 

No chemical analysis has been made. 

Spectrographic analysis shows main components are U, Ca, Si, but

X-ray powder - patterns are unlike"'those of 'Uranophtfne or /3-

uranophane. 

Min. pet. Mitt., Band 2, Heft 3, p. 307-313, 1951.

GUMMITE

Generic term for minerals occurring as alteration products of uraninite

and not otherwise identified. 

Group includes silicates, phosphates, and oxides. 

Dana VII, v. 1, p. 622-625.

Eliasite .

Synonym of gummite.

U=67.2 percent.

Dana VII, v. 1, p. 622-624.

Pittinite

Synonym of'gummite." 

Dana VII, v. 1, p. 622-624.

Yttrogummite

Yttrian variety of ;gummite.

An alteration product of yttrian uraninite.

Dana VII, v. 1, p. 622-624.

HUTTONITE 

ThSiO«

Dimorph of thorite, isostructural with monazite and cheralite. 

Th=7L6 percent.

Colorless to pale cream. From placers* Rare. 

Am. Mineralogist, v. 36, p. 60-69, 1951. 

829106-56 3
182 CONTRIBUTIONS TO THE GEOLOGY OF URANIUM

IANTHINITE

2UO2 -7H2O?

U=71.5 percent.

Color: Violet black. A rare alteration product of uraninite.

Dana VII, v. 1, p. 633-634.

IRINITE

(Na, Ce, Th),_x (Ti, Nb) [(WOH),]

Thorian variety of loparite. . Th= 11.4 percent.

Color: Reddish brown to yellowish brown. Rare, from nepheline

syenite pegmatite. 

Akad. Nauk S. S. S. R. Doklady, torn. 97, p. 725-728, 1954.

ISHIKAWAITE

(U, Fe, X) (Nb, Ta)O4

X=rare earths.

U=19.3 percent.

Color: Black. Rare, from granite pegmatites.

Dana VII, v. 1, p. 766.

JOHANNITE

Cu(U02)2(S04)2 (OH)2-6H2 0 

U=50.8 percent.

Color: green. A secondary mineral. 

Dana VII, v. 2, p. 606-607.

Gilpinite

Synonym of johannite.

Am. Mineralogist, v. 11, p. 1-5, 1926.

Peligotite " . . . . 

Probably identical with johannite. 

Soc. russe mineralogie Mem., v. 71, p. 9-11, 1942.

Uranvitriol Synonym of johannite.

Chem. Untersuch., Band 5, p. 254, 1821.

KAHI/ERITE

Fe(U02)2 (AsO< )2-nH2 0

Arecuatc analog of bassetite.

U=46.8 percent (?) .

Color: Yellow to yellow green. A rare secondary mineral. 

Der Karinthin, Band 23, p. 277-280, 1953.

KASOLITE

Pb(UO2)(SiO3)(OH)2 -

U=40.5 percent. : .;

Color: Yellow to brown. A secondary mineral.

Am. Mineralogist, v. 7,.p. 128-129,1922.

Acad. roy. Belgique, v, 25, P- 654, 193J9- . . . .
GLOSSARY OF URANIUM- AND THORIUM-BEARING MINERALS 18$

KHLOPINITE

(Y, US Th) 3 (Nb, Ta, Ti, Fe) 7 02o? 

Also chlopinite, hlopinite. 

May be related to euxenite-polycrase. 

U=7.2 percent, Th=1.9 percent. 

Color: Black. From pegmatites. 

Dana VII, v. 1, p. 792.

LIEBIGITE

Ca2(U02)(C03) 3 .10-llH2 0

U=33.6 percent.

Color: Green, yellow green. A rare secondary mineral.

Dana VII, v. 2, p. 240.

Am Mineralogist, v. 35, p. 251-254, 1950.

Thompson, M. E., and Meyrowitz, Robert, written communication.

Kalk-uran-carbonat

Synonym of liebigite.

Reichsanst. Wien Geol. Jahrb., Band v. 4, p. 221, 1853.

Uranothallite

Synonym of liebigite. 

Dana VII, v. 2, p. 241.

Flutherite

Synonym of uranothallite.

Am. Mineralogist, v. 35, p. 251-254, 1950.

Dana VII, v. 2, p. 240.

MASUYITE . U03 .2H2 0

Probably isostructural with vandendriesscheite, but analysis of supposedly authentic material yielded no lead. 

U=73.9 percent.

Color: Yellow to orange-yellow. A rare secondary mineral. 

Soc. beige gSologie Bull., v. 70, p. 212-225* 1947. 

Frondel, J. W., and Cuttitta, Frank, written communication.

MEDJIDITE

Supposedly a uranium sulfate. 

Validity of species is questionable. 

Dana VII, v. 2, p. 600.

META-AUTUNITE I

Ca(U02)2 (P04 )2 -2#-6#H20

See autunite.

Apparently not formed directly in nature, but most field and museum.

specimens of autunite have been dehydrated to this phase. 

U=52.4 to 57.1 percent.

Color: Yellow. A common secondary mineral. 

Dana VII, v. 2, p. 985.

Metakalkuranite

Synonym of meta-autunite. 

Centralbl. Mineralogie, 1901, p. 709.
184 CONTRIBUTIONS TO THE GEOLOGY OF URANIUM

META-AUTUNITE II

Ca(UO2)2 (P04)2-0-6H2O

See autunite and meta-autunite I.

Not found in nature. Meta-autunite I passes into this phase on heating

to about 80° C. 

U=53.0 to 60.4 percent. 

Color: Yellow. 

Dana VII, v. 2, p. 985.

METATORBERNITE

Cu(UO2)2(PO.4)8 .nH2On=4 to 8.

See torbernite.

U=50.8 percent.

Color: Green. A common secondary mineral.

Dana VII, v. 2, p. 991. 

Metachalcolite

Synonym of metatorbernite.

Dana VII, v. 2, p.. 991. 

Metakupferuranit

Synonym of metatorbernite.

Centralb. Mineralogie, 1901, p. 618.

METATYUYAMUNITE

Ca(UO2)2 (VO4)2-5-7H2O 

See tyuyamunite. 

Lower hydrate of tyuyamunite. 

U=50.1 to 52.2 percent. 

Color: Yellow. A secondary mineral.

Stern, T. W. Stieff, L. R. Girhard, Nancy, and Meyrowitz, Robert, Am. 

Mineralogist (in press).

META-URANOCIRCITE

Ba(UOa)2 (PO4)2-8H2O

Belongs to the meta-series of hydrates of the metatorbernite Efroup. and

wag known- originally as uranocircite. 

U=47.1 percent.

Colon YeUO^peen; A rateiSe^Maiy Mineral. 

Am. Mineralogist, v. 38, p. 476, 1953.

Uranocircite

Now recognized as meta-uranocircite. 

Am. Mineralogist, v. 38, p. 476, 1953.

Bariumphosphoruranit

Synonym of uranocircite. 

Mineralog. Mag., v. 28, p. 732, 1949.

3META-TJRANOPILITE

(UWi(SOJ(OH)M .5Hi07

See uranopilite.

Recent work indicates validity of species is doubtful.

tJ=72.3 percent (?) '

Dana VII, v. 2, p. 582-583.

Am. Mineralogist, v. 37, p. 958, 1954.
GLOSSARY OF URANIUM- AND THORIUM-BEARING MINERALS 185

Beta-uranopilite

Synonym for meta-uranopilite. 

Dana VII, v. 2, p. 582. . METAZEUNERITE

Cu(U02)2(As04)2 .8H2 0

The name zeunerite, originally given to the species, was changed to 

metazeunerite when X-ray and dehydration studies indicated that 

the natural occurrences of the mineral corresponded to the laterrecognized series of "the hydrates of the metatorbernite group.

U=46.4 percent.

Color: Green. A common secondary mineral.

Dana VII, v. 2, p. 993-994.

Am. Mineralogist, v. 36, p. 249-255, 1951.

Zeunerite

All natural specimens labeled zeunerite that have been examined by

X-ray means have proved to be metazeunerite.

The fully hydrated, or true, zeunerite has not yet been found in nature. 

Dana VII, v. 2, p. 989-990.

Kupferarsenuranit

Synonym of zeunerite. . 

Mineralog. Mag., v. 28, p. 732, 1949.

MONAZITE

(Ce, La, Th)P04

Th is normally from a few percent to 10.6 percent, but series probably 

extends to 26.4 percent.

Color: Yellowy brown, reddish-brown: Widely disseminated as an accessory mineral in granites and gneisses. In pegmatites. In 

placer deposits.

Dana VII, v. 2, p. 691-696.

Cryptolite

Synonym of monazite.

Dana VII, v. 2, p. 691. 

Edwardsite

Synonym of monazite.

Dana VII, v. 2, p. 691. 

Eremite

Synonym of monazite.

Dana VII, v. 2, p. 691. 

Guadarramite

An intergrpwth of radioactive monazite and some ilmenite.

Am. Mineralogist, v. 37, p. 1061, 1952. 

Kdrarfveite

Impure monazite.

Dana VII, v. 2, p. 691. 

Mengite

Synonym of monazite.

Dana VII, v. 2, p. 691. 

Monazitoid

Synonym of monazite.

Dana VII, v. 2, p. 691.
186 CONTRIBUTIONS TO THE GEOLOGY OF URANIUM

MONAZITE Continued 

Phosphocerite

Synonym of monazite.

Dana VII, v. 2, p. 691. 

Turnerite

Synonym of monazite.

Dana VII, v. 2, p. 691, 695. 

Urdite

Synonym of monazite.

Dana VII, v. 2, p. 691.

NOHLITE

(Ca, Mg, Fe', X, U)2 (Nb, Zr, Fe»),0,0 

X= yttrium and other rare earths. 

Validity of species is doubtful. 

U= 13.0 percent. 

Color: Brownish black. 

Dana VII, v. 1, p. 772-773.

NOVACEKITE

Mg(UO2) 2 (As04)2 -8-10H2O

Arsenate end-member of sale"eite-novacekite series.

U=51.6 to 53.7 percent.

Color: Yellow. A rare secondary mineral.

Am. Mineralogist, v. 36, p. 680-686, 1951.

PARSONSITE

Pb2(UO2)(P04)2 -H2 0 or 2H2O

U=26.1 or 26.7 percent.

Color: Yellow. A rare secondary mineral.

Dana VII, v. 2, p. 913-914.

Am. Mineralogist, v. 35, p. 245-250, 1950.

PHOSPHURANYLITE

Isostructural with renardite and dewindtite. 

U=63.3 percent.

Color: Deep to golden yellow. A secondary mineral.

Am. Mineralogist, v. 35, p. 756-763, 1950; v. 39, p. 444-451, 1954.

PILBABITE

PbO-UO3 -ThO2 .2SiO2 .4H2O 

U=24.4 percent, Th=27.4 percent.

Color: Yellow.

Am. Mineralogist, v. 13, p. 464-465, 1928; v. 38, p. 1O08, 1953.

PISEKITE

An ill-defined mineral, essentially a niobate-tantalate-titanate of U

and rare ezxrtHs witli Th u.ncl Sn.

May De related to ampangabeite,

Color: Yellowish brown to black. From granite pegmatite. 

Narodni Mus., Prague, Casopis Min. Geol., Band 1, p. 2, 1923. 

Dana VII, v. 1, p. 807-808.
GLOSSARY OF URANIUM- AND THORIUM-BEARING MINERALS 187

POLYCRASE

(Y, Ca, Ce, U, Th) (Ti, Nb, Ta)2 0«, 

Part of the eaxenite-polycrase series. 

U=5.5 to 12.4 percent, Th=up to 4.7 percent. 

Color: Black. From granite pegmatites. 

Dana VII, v. 1, p. 787-791.

PRIORITE

(Y, Er; Ca, Fe2 , Th) (Ti, Nb)2 0fl 

Part of the eschynite-priorite series. 

U=0.4 to 3.4 percent, Th=0.5 to 14.9 percent. 

Color: Black. From granite pegmatites and nepheline syenites. 

Dana VII, v. 1, p. 793-796. 

Blomstrandine

Also blomstrandinite. 

Synonym of priorite. 

Dana VII, v. 1, p. 793-796.

RABBITTITE

Ca3Mg3(U02)2(C03) 6 (OH)4-18H20 

U=31.1 percent.

Color: Pale green. A rare secondary mineral.

Thompson, M. E., Weeks, A. D., and Sherwood, A. M., Am. Mineralogist (in press). ,

RAUVITE

CaO-2U03 -5V2 05 -16H2 0?

U = 26.1 percent.

Color: Purplish to bluish black. A secondary mineral.

Dana VII, v. 2, p. 1058.

Sherwood, A. M., unpublished analysis.

Weeks, A. D., report in preparation.

RENARDITE

Pb(U02)4(P04)2 (OH)r7H20

Isostructural with phosphuranylite and dewindtite.

U=57.3 percent.

Color: Yellow. A rare secondary mineral.

Dana VII, v. 2, p. 928.

Am. Mineralogist, v. 39, p. 444-451, 1954.

RICHETITE

Contains Pb and U.

Validity of species is questionable.

Soc. beige geologic Bull., v. 70, p. 212-225, 1947.

RUTHERFORDINE 

UO2C03

U=72.1 percent.

Color: Yellow. A rare alteration product of uraninite. 

Dana VII, v. 2, p. 274-275. 

Frondel, Clifford, and Meyrowitz, Robert, written communication

Diderichite

Synonym of rutherfordine.

Frondel, Clifford, and Meyrowitz, R.f written communication.
188 CONTRIBUTIONS TO THE GEOLOGY OF URANIUM

SABUGALITE

HA1(UO2)4(PO4)4-16H2O

U=53.6 percent.

Color: Yellow. A rare secondary mineral.

Am. Mineralogist, v. 36, p. 671-679, 1951.

SALEEITE

Mg(UO2)2 (PO4 ) 2 -8-10H2 0

Phosphate end-member of the sale'eite-novacekite series.

U=50.9 to 53.0 percent.

Color: Yellow. A rare .secondary mineral.

Dana VII, v. 2, p. 988-989.

Am. Mineralogist, v. 36, p. 680-686, 1951.

Magnesium-phospkoruranite 

Synonym of sale'eite. 

Mineralog. Mag., v. 28, p. 732, 1949;

SAMARSKITE

(Y, Ce, U, Ca, Fe, Pb, Th) (Nb, Ta, Ti, Sn)2O8 

U=8.4 to 16.1 percent, Th=up to 3.7 percent. 

Color: Velvet-black to brown. From granite .pegmatites. 

Dana VII, v. 1, p. 797-800.

Annerddite

Samarskite with parallel overgrowths of columbite. 

Dana VII, v. 1, p. 797, 799.

Eytlandite

Synonym of samarskite. 

Dana VIII, v. 1, p. 797.

Hydrosamarskite

An altered samarskite. 

Dana VII, v. 1, p. 799-800;

Nuetiite

Synonym of samarskite.

Am. Mineralogist, v. 36, p. 358, 195.1.

Plumboniobite

A niobate of Y, U, Pb, Fe and rare earths.

May be a plumbian variety ofjsamarskite. 

Dana VII, v. 1, p. 800. 

Rogersite

Probably an altered samarskite.

Of doubtful validity. 

Dana VII, v. 1, p. 8OO.

Uranoiantalite

Synonym of samarskite.

Dana VII, v. 1, p. 797.

V-ietinghofite

Supposedly a ferroan samarskite.

Dana VII, v. 1, p. 800-801.

Yttro-ilmenite

Synonym of samarskite. 

Dana VII, v. 1. p. 797.
GLOSSARY OF URANIUM- AND THORIUM-BEARING MINERALS! 189

SCHOEPITE

Close to UO3 -2H2 0 but perhaps 8U08 .20H30.

U=71.9 percent.

Color: Yellow. An uncommon alteration product of uraninite.

Dana VII, v. 1, p. 627-628.

Cuttitta, Frank, unpublished analysis.

Paraschoepite

X-ray study indicates mineral is identical with schoepite.

Am. Mineralogist, v. 32, p. 344-350, 1947; v. 33, p. 513-514, 1948.

Frondel, J. W., unpublished data.

SCHROECKINGERITE

NaCa3 (U02) (C03)8(S04)F.10H20

U=26.8 percent.

Color: Greenish yellow. A secondary mineral.

Dana VII, v. 2, p. 236.

Hurlbut, C. S., Am. Mineralogist (in press).

Dakeite

Synonym of schroeckingerite. 

Dana VII, v. 2, p. 236.

Neogastunile

Synonym of schroeckingerite.

Min. pet. Mitt., Band 2, Heft 3, p. 311-312, 1951,

SENGIERITE

Cu(U02) (V04) (OH).4-5H!jO?

U=42.8 to 44.3 percent ?

Color: Yellowish green. A rare secondary mineral.

Dana VII, v. 2, p. 1047.

SHARPITE

Perhaps (UQ2)(C03)-H20 or (U02)6(C03) B (OH)2 .7HaO

Composition needs to be checked.

U=68.4 or 68.6 percent.

Color: Greenish yellow. A secondary mineral.

Dana VII, v. 2, p. 275.

SKLODOWSKITE

Mg(UO2)2 (Si03)2 (OH)2 .6H2O

Also sklodovskite;

Isostructural with uranbphane and cuprosklodowskite.

U=55.6 percent. ' 

Color: Yellow. A rare secondary mineral.

Am. Mineralogist, v. 10, p. 132, 1925.

Natuurk. tijdschr. Ned.-Indie, deel 96, afl. 1, p. 284, 1936..

Chinkolobwite

Also shinkolobwite. 

Synonym of sklodowskite. . , Mineralog. Abs., v. 3, p. 115, 1926.
190 CONTRIBUTIONS TO THE GEOLOGY OF URANIUM

SODDYITE

(UO2) 5 (Si04 )2(OH) 2 .5HaO 

U=71.8 percent.

.Color: Yellow. A secondary mineral. ' - Mineralog Abs., v. 3, p. 371, 1927. . . Am. Mineralogist, v. 37, p. 386, 1952.'

STUDTITE

Hydrated carbonate of U and Pb. 

Species not-well-defined. 

Color: Yellow. A secondary mineral. 

Dana VII, v. 2, p. 275,

SWARTZITE

CaMg(U02) (COj}) 3 -12H2 0

U=32.6 percent.

Color: Green. A rare secondary mineral.

Dana VII, v. 2, p. 238-239.

THORIANITE

(Th,U)Oa

Forms complete series with uraninite.

Division between thorianite and uraninite at Th:U=l:l.

U=as much as 46.5 percent, Th=45.3 to 87.9 percent.

Color: Gray, black, brownish black. From placers.

Dana VII, v. 1, p. 620-622.

Aldanite

A variety of thorianite containing 14.9 to 29.0 percent UOj and 11.2

to 12.5 percent PbO. 

Soviet Geol. 1941, no. 6, p. 105-107.

Uranothorite

Synonym for thorianite containing U. 

Am. Jour. Sci., v. 26, p. 47, 1933.

THORITE

ThSi04 ' U=up to 10.1 percent, Th=25.2 to 62.7 percent.

Color: Yellow, brown, black. From nepheline syenites and granites.

Dana VI, p. 488-49O.

Am. Mineralogist, v, 38, p, 1007-1018,1953,

Auerlite

Phosphatian variety of thorite,

Dana VI, p. 488-490.

Am. Mineralogist, v. 38, p. 1007-1018,1953.

Calc-iothorfte

Variety of thorite,

Dana VI, p. 489.

Am. Mineralogist, v. 38, p. 1007-1018,1953, -

JSnalile

Uranoan variety of thorite.

Am. Mineralogist, v. 18, p. 223, 1933; v. 38, p. 1007-1018, 1953.
GLOSSARY OF URANIUM- AND THORIUM-BEARING MINERALS 191

Eucrasite

Possibly a variety of thorite high in rare earths.

Dana VI, p. 489.

Am. Mineralogist, v. 38, p. 1007-1018, 1953.

Ferrothorite

A. ferroan variety of thorite.

Am. Mineralogist, v. 14, p. 78, 1929; v. 38, p. 1007-1018, 1953.

Freyalite

Variety of thorite high in rare earths.

Dana VI, p. 489.

Am. Mineralogist, v. 38, p. 1007-1018, 1953.

Orangite

Synonym of thorite. 

Dana VI, p. 488-489.

Uranothorite

Uranoan variety of thorite.

Am. Mineralogist, v. 36, p. 557-562, 1951.

Wisaksonite

Uranoan variety of thorite.

Am. Mineralogist, v. 39, p. 825-829.

THOROGUMMITE

Th(Si04 ),-lt (OH)4 1 m 

Isostructural with thorite.

U=2.5 to 31.4 percent, Th=18.2 to 50.8 percent. 

Am. Mineralogist, v. 38, p. 1007-1018, 1953.

Chlorothorite

Synonym of thorogummite.

Am. Mineralogist, v. 38, p. 1007-1018, 1953

Hyblite

Synonym of thorogummite.

Am. Mineralogist, v. 38, p. 1007-1018, 1953.

.Hydrothorite

Synonym of thorogummite.

Am. Mineralogist, v. 38, p. 1007-1018, 1953.

Mackintoshite

Synonym of thorogummite.

Am. Mineralogist, v.-38, p. 1007-1018, 1953.

Maitlandite

Synonym of thorogummite.

Am. Mineralogist, v. 38, p. 1007-1018, 1953

Micolayite

Synonym of thorogummite. 

. Am. Mineralogist, v. 38, p. 1007-1018, 1953.
192 CONTRIBUTIONS TO THE GEOLOGY OF URANIUM

THUCHOLITE

A complex of uraninite with hydrocarbons.

U as much as 53 percent in the ash, Th as much as 48 percent in the ash.

Color: Black.

Great Britain Geol. Survey Bull. 3, pp. 1-19, 1951.

Am. Mineralogist, v. 38, p. 802, 1953.

Carbocer

A mineral similar to thucholite, high in Ce. 

Great Britain Geol. Survey Bull. 3, p. 3, 1951. 

Am. Mineralogist, v. 38, p. 804, 1953.

Carburan

A hydrocarbon complex related to thucholite.

U=4.29 percent.

Mineralog. Abs., v. 6, p. 437, 1936.

Titanothucholite

Titanian variety of thucholite.

Mineralog. Abs., v. 9, p. 37, 1944.

TORBERNITE

Cu(U02) 2 (P04 )rl2H2O

See metatorbernite.

U=47.1 percent.

Color: Green. A common secondary mineral.

Dana VII, v. 2, p. 981-984.

Chalkolith, Chalcolite *

Synonyms of torbernite. 

Dana VII, v. 2, p. 981.

Copper uranite

Synonym of torbernite. 

Dana VII, v. 2, p. 981.

Cuprouranil

Synonym of torbernite. 

Dana VII, v. 2, p. 981.

Kupferphosphoruranit

Synonym of torbernite.

Mineralog. Mag., v. 28, p. 732, 1949.

Torberite

Synonym of torbernite.

Brooke and Miller, Introduction to Mineralogy, p. 517, 1852.

Uranite ... 

Synonym of torbernite-autunite group. 

Dana VII, v. 2, p. 981-984.

Uran-mica

Synonym of torbernite.

Jameson, System of mineralogy, 182O.

Uranphyllit

Synonym of torbernite. 

Dana VII, v. 2, p. 981.
GLOSSARY OF URANIUM- AND THORIUM-BEARING MINERALS 193

TROEGERITE

Probably H2 (U02) 2 (As04) 2 -8H2 0

New analysis is needed.

U=55.1 percent.

Color: Lemon yellow. A rare secondary mineral.

Am. Mineralogist, v. 36, p. 322, 1951.

Dana VII, v. 2, p. 966-967.

TSCHEFFKINITE

Also chevkihite.

Complex silicate of rare earths, Fe, Mn, Mg, Ca, Al, Ti, Th, and U.

Color: Black. In alkaline granite pegmatites.

U=2.3 percent, Th=up to 18.4 percent.

Am. Mineralogist, v. 31, p. 582-588, 1946.

Perrierite

Perhaps identical with tscheffkinite.

Th=4.0 percent.

Am. Mineralogist, v. 36, p. 926, 1951.

TYUYAMUNITE

See metatyuyamunite.

Ca(U02) 2 (V04) 2 -7-10.5H20

U=54.4 to 56.7 percent.

Color: Yellow. A common secondary mineral.

Dana VII, v. 2, p. 1045-1047.

Ccdciocarnotite

Synonym for tyuyamunite.

Dana VII, v. 2, p. 1045. . .;'

UMOHOITE - 

Close to (UQa).(Mo04).4H2 0 

Umohoite is the only known uramium mineral that contains Mo ad a

major constituent. 

U=47.4 percent.

Color: Black^to bluish black. A rare secondary mineral. 

U. S. Atomic Energy Commission, RME-3046, p. 45, April, 1953. 

Brophy, Gerald, and Kerr, P. F., Am. Mineralogist (in press),

UNNAMED MINERAL (Antipov, 1900) 

Essentially Cu(UO2)(C03) 2 -10H2 0

U=37.6 percent. -v 

Antipov, Gesell. Min. St, Petersburg Verhl., Band 38, p. 38? 1900.

UNNAMED MINERAL (Chernik, 1922) . 

Ill-defined vanadate of Cu and U.

Has same qualitative chemical composition as sengierite. 

U=32.5 percent (from incomplete analysis). 

Chernik, G., Acad. sci. U. R. S. S. Bull., v. 16, p. 505, 1922.

UNNAMED MINERAL (Chirvinsky, 1925) ~*° 

An incompletely described mineral presumed to contain U by virtue of

its properties and association. 

May be a variety of tyuyamunite. 

Mineralog. Mag., v. 20, p. 287, 1925.
194 CONTRIBUTIONS TO THE GEOLOGY OF. URANIUM

URACONITE

This name has been used for uranium sulfates, but lacks specific meaning

and should be abandoned. ; . 

Dana VII, v. 2, p. 600.

Calciouraconite

Near Ca(UO2)4(SO4 ) 2 (OH)6-20H2O 

Validity questionable.

Boldyrev, A. K., Course of descriptive mineralogy, v. 3, 1935, Leningrad 

and Moscow.

URANINITE

Ideally U02 .

Usually more or less oxidized and ranging in composition to at least 

(U4 , U8)O2 .8. Also contains Th, Pb, Y, arid other rare earths, in 

Solid Solution. Forms complete series with thorianite. Division 

between uraninite and thorianite at U:Th=l:l.

U=46.5 to 88.2 percent, Th=up to 45.3 percent.

Color: Velvety brownish, grayish, greenish black.

In granite and syenite pegmatites (crystals), in hydrothermal 

. sulfide veins (pitchblende).

Dana VII, v. 1, p. 611-620.

Am. Mineralogist, v. 37, p. 363-385, 1952.

Broggerite

A thorian variety of uraninite. 

Dana VII, v. 1, p. 611-614.

Cleveite

A variety of uraninite containing rare earths. 

Dana VII, v, 1, p. 611, 613-614.

Coracite

Synonym of uraninite. \\- 

Dana VII, v. 1, p. 611, 615, 617. ; ..

Nasturan * 

Synonym of pitchblende. 

Dana VII, v: 1, p. 611, 614, 617.

Nivenite

A variety of uraninite containing rare earths. 

Dana VII, v. 1, p. 611, 613-615, 617.

Pitchblende

A colloform, fine-grained variety of uraninite. 

Dana VII, v. 1, p. 611-619.

Ulrichite

Synonym of uraninite.

Dana VII, v. 1, p. 611, 613, 617.

Uranoniobite

Synonym of uraninite. 

Dana VII, v. 1, p. 611, 613.

Uranopissite

Synonym of uraninite.

Mineralog. Mag., v. 16, p. 374, 1913.
GLOSSARY OF URANIUM- AND THORIUM-BEARING MINERALS 195

URANOCHALCITE

An ill-defined uranium sulfate of doubtful validity. 

Dana VII, v. 2, p. 600.

URANOCHER

A generic term used chiefly for uranium sulfates, and, in part, uranium

oxides. 

Dana VII, v. 2, p. 58i, 598.

URANOPHANE '. 

Ca (U02)2 (Si03)2 (OH) 2 - 5H2 0 

Dimorphous with beta-uranophane; isostructural with sklodowskite and

c uprosklodowskite.

U=55.6 percent. '< 

Color: Yellow. A common secondary mineral. 

Frondel, Clifford, oral communication.

Lambertite

Synonym of uranophane.

Am, Mineralogist, v. 11, p. 155-157, 1926.

Uranotil, Uranotile

Synonym of uranophane. 

Dana VI, p. 699.

URANOPILITE .' .

See meta-uranopilite (U02)«(S04)(OH)i0 -12H2 0. .. . U=67.9 percent.

Color: Yellow. A secondary mineral.

Dana VII, v. 2, p. 581-582.

Am. Mineralogist, v. 37, p. 950, 1952. 

URANOSPATHITE .,,.,,.. 

Cu(U02)2 (As04, P04)2 .11H2 0? ' '- ; 

U= 46.0 percent (?) ' '"' ; ' , ; 

Color: Yellow to pale green. A rare secondary mineral. ; 

Dana VII, v. 2, p. 990. " :. . > 

Mineralog. Mag., v. 30, p. 343-353, 1954. \

URANOSPHAERITE , , '

(BiO)(U02)(OH) 3 ? ' """ """ ' " "" '

U=43.6 percent (?) '.'''..' .,'

Color: Orange to red. An alteration product of uraninite.'

Dana VII, v. 1, p. 631.

URANOSPINITE '' ,..,'.*'' . ', , , Ca(U02)2 (As04)2 -10H2 0 * U=45.9 percent. . > ; % 

Color: Yellow to green. . A rare secondary mineral. ''.'.; 

Dana VII, v. 2, p. 990-991. 

Am. Mineralogist, v. 38, p. 1159-1168, 1953. i

Calciumarsenuranit ' ' ' ' 

Synonym of uranospinite. .., . ' .' , Mineralog. Mag., v/28, p. 732, 1949.: ' -
196 " CONTRIBUTIONS TO THE GEOLOGY , OF URANIUM

UVANITE

U2V6O2i.l5H20?

U=34.3 percent (?)

Color: Brownish yellow. A rare secondary mineral.

Dana VII, v. 2, p. 1056. .

VANDENBRANDEITE

Cu(U02)O2-2H2O .

U=59.3.percent. >

Color: Blackish. A rare secondary mineral.

Dana VII, v. 1, p. 632-633.

Am. Mineralogist, v. 36, p. 394-410, 1951.

Uranolepidite

Synonym of vandenbrandeite.

Am. Mineralogist, v. 19, p. 235-236, 1934.

VANDENDRIESSCHEITE 

PbO.7UOs -12H2 0 

This is "mineral x". of Charles Palache and Harry Berman, now a

validated species. 

U=68.3 percent.

Color: Yellow. A rare alteration product of uraninite. 

Am. Mineralogist, v. 18, p. 20-24, -1933.- 

Soc. beige geologic Bull., v. 70, p. 212-225, 1947. 

Frondel, J. W., unpublished data.

VOGLIANITE

A hydrous calcium and uranium sulfate of doubtful validity. 

Dana VII, v. 2, p. 600.

VOGLITE

Ca2CuU(C03)5-6H20?

U=32.6 percent.

Color: Green. A rare secondary mineral.

Dana VII, v. 2, p. 237.

Uran-kalk-kupfer carbonat 

Synonym of voglite. 

Reichsanst. Wien Geol. Jahrb., Band 4, p. 220, 1853.

WALPURGITE

Probably BudJOaXAsO^CVaEkO.

U=15.9 percent.

Color; Yellow, A rare secondary mineral.

Dana VII, v. 2, p. 796-797.

ZIPPEITE

3UO8 2SO»r9HaO ? or 2UO8-SOj-5EaO?

New analysis needed. . . U=59.1 or 64.1 percent (?)

Color: Orange-yellow. A secondary mineral.

Dana, VII, v. 2, p. 698.

Am, Mineralogist, v. 37, p. 394,950, '1951
GLOSSARY OF URANIUM- AND THORIUM-BEARING MINERALS 1Q7

B. MINERALS WITH MINOR AMOUNTS OF URANIUM AND

THORIUM

ABUKUMALITE

(Th, Ca, Y) 6 (Si04 , P04 , A104)i(0, F)

Related to apatite.

Th=0.8 percent.

Am. Mineralogist, v. 24, p. 66, 1939.

Strunz, Hugo, Mineralogische Tabellen, p. 167, Leipzig, 1949.

ALLANITE

(Ca, Ce, Th) 2 (Al, Fe, Mg) 3Si3O12 (OH) 

U=0.02 percent, Th=up to 3.2 percent. 

Dana VI, p. 522-526. 

Am. Mineralogist, v. 36, p. 223-248, 1951. 

Mineralog. Abs., v. 11, p. 434-435, 1952.

Bagrationile .: 

Variety of allanite. . 

Name also refers to cerian variety of epidoto. 

Dana VI, p. 518-519.

Buckland'ite - 

Synonym of allanite. 

Dana VI, p. 522-523, 525.

Muromontite

Apparently related to allanite but containing yttrium and beryllium. 

Dana VI, p. 526.

Bodenite

Related to muromontite in composition. 

Dana VI, p. 526.

Nagetelite

Phosphatian variety of allanite.

Am. Mineralogist, v. 16, p. 343-344, 1931.

Orthite

Synonym of allanite. 

Dana VI, p. 522-526.

Uralorthite

Synonym of allanite. 

Dana VI, p. 523-525.

Wasite

Altered allanite. 

Dana VI, p. 526.

Xanthorite ' . Altered allanite. . Dana VI, p. 522-523, 525.

Yttro-orthite

Also yttrium orthite.

Variety of orthite containing 8 percent Y2 0s.

Mineralog. Mag., v. 23, p. 639, 1934.
198 CONTRIBUTIONS TO THE GEOLOGY OF URANIUM

ANTHRAXOLITE

A nickeliferous and uraniferous hydrocarbon.

U = 0.003 percent.

Am. Mineralogist, v. 19, p. 426-428, 1934.

ASPHALTITE

Also asphaltum.

Includes solid bituminous hydrocarbons known as albertite, impsonite,

gilsonite, grahamite, nigrite and uintaite. 

U=0.001 percent. 

Mineralog. Mag., v. 15, p. 417, 1910.

Broggite

A variety of asphaltite.

Mineralog. Mag., v. 24, p. 604, 1937.

BASTNAESITE

(Ce, La)FC03

U and Th present, but less than 1 percent.

Dana VII, y. 2, p. 289-291.

Am. Mineralogist, v. 38, p. 932-963, 1953.

Buszite

Synonym of bastnaesite.

Soc. franc, mineralogie Bull., v. 76, p. 124-129, 1953.

CAPPELENITE

Ba(Y, Ce, La) 6B60,2 (OH) 2 (Si04) 3

Th=0.42 percent.

Strunz, Hugo, Mineralogische Tabellen, p. 193, Leipzig, 1949.

CARBONATE-FLUORAPATITE

A carbonatian variety of fluorapatite which is an important constituent

of many phosphate rocks. Analyses show IT up to 0.02 percent. 

Dana VII, v. 2, p. 879, 883-884. 

McKelvey, V. E., Domestic phosphate deposits, in Soil and fertilizer

phosphorus, Agronomy v. 4, Academic Press, p. 347-376, ? 1954. 

Altschuler, Z. S., Clarke, R. D., Jr., and Young, E. J., Uranium in 

apatite (abst): Geol. Soc. America v. 65, p. 1225, 1954.

CERITE

A cerium silicate with minor Ca and Fe. Formula uncertain.

U=0.4 percent, Th=0.3 percent.

Am. Mineralogist, v. 25, p. 381-404, 1940. 

CHINGLUSUITE

A compk silicate of Na, Mn, Ca, and Ti, containing smau WWUB* of

Th and rare earths. 

Mineralog. Abs., v. 7, p. 222, 1938.

CORDYLITE

(Ce, La) 2Ba(C03) 3F2

Th=0.26 percent.

Dana VII, v. 2, p. 285-287.
GLOSSARY OF URANIUM- AND THORIUM-BEARING MINERALS 199

FERSMITE

(Ca, Ce, Na)(Nb, Ti, Fe, Al),(0, OH, F),

Th=0.42 percent.

Acad. sci., U. R. S. S., C. R., torn 52, p. 69-71, 1946.

HIELMITE

Also hjelmite. 

AB2 06 or A2B3 0,0 

A=Y, Fea, U4 , Mn, Ca. 

B=Nb, Ta, Sn, W. 

U=4.0 to 4.3 percent. 

Dana VII, v. 1, p. 779-780.

HOKUTOLITE

Plumboan variety of barite. Radioactive mixture of Pb and Ba sulfate.

Probably contains Ra, Th, and U. 

Dana VII, v. 2, p. 408, 411.

Anglesoibante

Synonym of hokutolite. 

Dana VII, v. 2, p. 408, 411.

JOHNSTRUPITE

A complex silicate of Na, Ca, Th, Ce, and Ti. 

Close to rinkite. 

Th=0.7 percent. 

Dana VI, p. 720-721.

KOLM

Material resembling oil shale.

Form in which uranium is present is unknown.

U=0.43 percent.

Washington Acad. Sci. Jour., v. 21, p. 409-414, 1931.

LOVCHORRITE

Ce2(Ti03) 3 -10CaSiOs-2CeF3 

U=0.03 percent, Th=up to 0.7 percent. 

Mineralog. Mag., y. 21, p. 569, 1928. 

Mineralog. Abs., v. 6, p. 341-343, 1936.

Vudyavrite

An altered lovchorrite.

Th=about 1 percent.

Mineralog. Abs., v. 6, p. 341-343, 1936.

LOVOZERITE

A complex silicate of Ti and Zr.

Th=0.50 percent.

Mineralog. Abs., v. 7, p. 468-469, 1940.

MELANOCERITE

Chiefly a borosilicate of the Ce and Y metals. 

Th=1.5 percent. 

Dana VI, p. 414-415.
200 CONTRIBUTIONS TO THE : GEOLOGY OP URANIUM

MELANOCERITE Continued 

Caryocerite '

Near melanocerite, but contains more Th.

Th=12.0 percent. ' . . Dana VI, p. 415.

MICROLITE

(Na, Ca)2 (Ta, Nb) 2 06 (0, OH, F) ' 

In pyrochlore-microlite series, with Ta>Nb. 

U as much as 10.4 percent, Th = 0.2 percent. 

Dana VII, v. 1, p. 748-754. 

Calciotantalite

Possibly a mixture of microlite and. tantalite. . Dana VII, v. 1, p. 787., ..,. . Djalmaite ': \. . . . Synonym of microlite. 

Acad. Brasileira Cienc. Anais, v. 22, p. 139-140, 1950.

Haddamite

Synonym of microlite. ,

Dana VII, v. 1, p. 748. 

Metasimpsonite ' ' ' '

An alteration product of simpsonite; later identified with microlite.

Dana VII, v. 1, p. 748, 755. 

Neotantalite

An altered microlite with composition close to tantalite.

Dana VII, v. 1, p. 748, 750-751, 753.

Niobtantal pyrochlore : - . . Synonym of microlite. : 

Chemie der Erde, Band 7, p. 56, 1932.

Tantal pyrochlore 

Synonym of microlite.

Chemie der Erde, Band 7, p. 56, 1932.

MOSANDRITE

Complex silicate of Na, Ca, Ce, and Ti. 

Close to rinkite. 

Th=0.3 percent.

Dana VI, p. 721-722. . .---

Zentralbl. Mineralogie, 1934, Abt. A, p. 76-79.

POLYMIGNYTE

A (Nb, Ti, Ta)0,

A=Ca, Fe2, Y, Zr, Th. ;

Th= 3.4 percent.

Dana VII, v,l,p,76H66,

PYROCHLORE

(Na, Ca)2 (Nb, Ta)2O6F

In pyrocUore-UMtfflBte 801188, WM ^7^

U as much as 1.4 percent usually, but as much as 17.1 percent m some

varieties, Th as much as 4.4 percent. 

Dana VII, v. 1, p. 748-754.
GLOSSARY. OF URANIUM-, AND THORIUM-BEARING MINERALS 201

Azor-pyrrhit

Synonym of pyrochlore.

Naturh. Ver. preuss. Rheinlande u. Westfalens Sitzungsber. Band

 43, p. 217, 1886. 

Chalcolamprite

Synonym of pyrochlore.

Dana VII, v. 1, p. 748, 750, 754. 

Ellsworthite

An altered uranoan variety of pyrochlore related to hatchettolite.

Dana VII, v. 1, p. 748, 750-752, 755. ' : 

Endeiolite

Similar in composition to chalcolamprite.

An altered pyrochlore ?

Dana VII, v. 1, p. 748, 754. 

Fluochlore

Synonym of pyrochlore (?)

Jour, prakt. Chemie, Band 50, p. 186-187, 1850. : Hatchettolite

Uranoan variety of pyrochlore.

Dana VII, v. 1, p. 748, 750-752, 754.. 

Hydrochlore

Synonym of pyrochlore.

Jour, prakt. Chemie, Band 50, p. 186-187, 1850.

Koppite

Synonym of pyrochlore.

Dana VII, v. 1, p. 748, 754. 

Marignacite '

Synonym of pyrochlore. ' 

Dana VII, v. 1, p. 748, 750-752, 755. 

Niobpyrochlor

Synonym of pyrochlore.

Chemie der Erde, Band 7, p. 56, 1932. " 

Pyrrhite

Synonym of pyrochlore. ;

Dana VII, v. 1, p. 748, 752, 754. ' . Uran-pyrochlore

Synonym of pyrochlore.

Upsala Univ., Geol. Inst., Bull. 3, p. 181, 1896.

RINKITE

Intermediate member of lovchorrite-calcium-rinkite series.

Th= small amounts.

Mineralog. Abs., v. 6, p. 342-343, 1936. . ;

RINKOLITE

Complex silicate of Na, Ca, Ce, and Zr in lovchorrite-calcium-rinkite

series.

Th up to 0.41 percent. 

Mineralog. Mag., v. 21, p. 575, 1928. 

Mineralog. Abs., v. 6, p. 341-343, 1936.
202 CONTRIBUTIONS TO THE GEOLOGY OF URANIUM

ROWLANDITE

(Y, La, Ce) 4Fe(F, Si2O7)2 ?

U=0.4 percent.

Possibly a metamict thalenite.

Dana VI, p. 1047.

Strunz, Hugo, Mineralogische Tabellen, p. 194, Leipzig, 1949.

STEENSTRUPINE

Complex silicate of rare earths, Th, Na, K, Fe, Mn, Mg, P, Be, Al, and

Ta, with (OH) and F. 

Th=6.2 percent. 

Dana VI, p. 415. 

Strunz, Hugo Mineralogische Tabellen, p. 192, Leipzig, 1949.

TENGERITE

CaY3(C03)4(OH)3-3H20?

The originally described tengerite, Dana VI, pp. 306-307, is a different

mineral, supposedly beryllium yttrium carbonate; no published

analysis.

Th=0.26 percent. 

Dana VII, v. 2, p. 275-276.

THALENITE

Y4Si4013 (OH)2

Related to yttrialite.

Th=0.16 percent.

Dana VI, appendix I, p. 68.

TRITOMITE

A borosilicate of Ce, Y, Th, Ca, and F; exact formula uncertain. 

Th=7.5 to 8.3 percent. 

Dana VI, p. 419.

TURANITE

Supposedly Cus(VO4)2 (OH) 4 . 

Seems to be related to mottramite. 

Reported to contain 3.2 percent U. 

Dana VII, v. 2, p. 818.

VANOXITE

Perhaps 2V2O4 .V2 08 .8H2 0.

Reported to contain UE> to 0.5 percent U; work in progress indicates

species may be invalid.

Dana VII, .v.l, p. 601-602,

VOLBORTHITE

Perhaps Cu3 (VO4)2 -3H2O. 

Reported to contain 3.1 percent U.

Dana VII, v. 2, p. 816-819.

Probably CuCa(V04)(HO).

Possibly only a calcian variety of volborthite.

Dana VII, v. 2, p. 816-818.
GLOSSARY OF URANIUM- AND THORIUM-BEARING MINERALS 203

Tangeite

Also tangufiite.

Appears to be identical with calciovolborthite.

Dana VII, v. 2, p. 816-818.

Uzbekite

Synonym of volborthite. 

Dana VII, v. 2, p. 818.

WIIKITE

Ill-defined mixture and alteration product of minerals high in Nb, Ta,

Ti, Si, and Y.

U=up to 13.2 percent, Th=0.09 to 3.7 percent. 

Comm. ge"ol Finlande Bull. 13, no. 82, 1928; idem, no. 149, 1950. 

Mineralog. Abs., v. 11, p. 227, 1951.

Nuolaite

A mixture similar to wiikite. 

Th=1.8 to 3.5 percent. 

Dana VII, v. 1, p. 801.

XENOTIME 

YP04

U=as much as 3.6 percent, Th=as much as 2.2 percent. 

Dana VII, v. 2, p. 688-681.

YTTRIALITE

Silicate, chiefly of Th and Y metals.

Possibly thalenite with much Th.

U=0.8 percent, Th=10.5 percent.

Dana VI, p. 512.

Strunz, Hugo, Mineralogische Tabellen, p. 194, Leipzig, 1949.

YTTROCRASITE

(Y, Th, U, Ca)2Ti4On?

U=2.3 percent, Th=7.7 percent.

Dana VII, v. 1, p. 793.

YTTROTANTALITE

(Fe, Y, U)(Nb, Ta)0,

Grades to samarskite.

U=as much as 4.8 percent, Th=as much as 1.6 percent.

Dana VII, v. 1, p. 763-764.

Mineralog. Abs., v. 11, p. 231-232, 1950.

Yttrocolumbite

Similar to yttrotantalite.

Am. Mineralogist, v. 25, p. 155, 1940.

ZIRCON

ZrSi04

U and Th low in most specimens, but as much as 2.7 percent U and as

much as to 13.1 percent Th reported. 

Dana VI, p. 482-486.
204 CONTRIBUTIONS TO THE GEOLOGY OF .URANIUM

ZIRCON Continued 

Alvite

Variety of zircon, near cyrtolite. 

Dana VI, p. 487-488.

Azorite

Variety of zircon. 

Dana VI, p. 482-484.

Calyptolite

Probably altered zircon. 

Dana VI, p. 482, 486.

Cyrtolite . . Altered zircon, containing U, Th, Y and other rare earths.

Dana VI, p. 487.

Am. Mineralogist, v. 38, p. 1007-1018, 1953.

Hagatalite

Synonym of zircon.

Am. Mineralogist, v. 11, p. 137, 1926.

Hoegtveitite May be alvite. 

Am. Mineralogist, v. 12, p. 97, 1927.

Mdlacon

Hydrated or altered zircon containing the common elements, but no

U, Th, or rare earths except in trace amounts. 

Dana VI, p. 486.

Naegite

Variety of zircon.

Mineralog. Abs., v. 2, p. 36, 1923. 

Oerstedite

Altered zircon.

Dana VI, p. 486. 

Oyamalite

Variety of zircon.

Am. Mineralogist, v. 11, p. 137-138, 1926. 

Ribeirite

An altered zircon.

Mineralog. Abs., v. 12, p. 305, 1954.

Tachyaphaltite

Probably altered zircon. 

Dana VI, p. 486.

Yamagutilite

Also yamaguchilite. 

Variety of zircon.

Contains PgC^ and rare earths,

: Mineralog. Mag., v. 24, p. 626, 1937.

ZIRKELITE

(Ca, Fe, Th, U)j(Ti, Zr) 2 05 ? 

U=1.4 percent, Th=6.4 percent. 

Dana VII, v. 1, p. 740.
GLOSSARY OF URANIUM- AND THORIUM-BEARING MINERALS 205

C. MINERALS REPORTED TO CONTAIN URANIUM AND 

THORIUM MINERALS AS IMPURITIES OR INTERGROWTHS

ADAMITE

Zn2 (OH)(As04 )

Reported to contain small amounts of U.

Mineralog. Abs., v. 10, p. 375, 1948.

Strunz, Hugo, Mineralogische Tabellen, p. 161, Leipzig, 1949.

BODENBENDERITE

Mixture of fluorite and spessartite.

U=0.11 percent. . Am. Mineralogist, v. 34, p. 608-611, 1949.

COLUMBITE

(Fe, Mn)(Nb, Ta) 2 0a

U= as much as 9.8 percent.

Dana VII, v. 1, p. 780-785. 

Baierite

Also baierine.

Synonym of columbite.

Dana VII, v. 1, p. 780. 

Dianite

Synonym of columbite.

Dana VII, v. 1, p. 780. 

Ferrocolumbite

Synonym of columbite.

Dana VII, v. 1, p. 780, 783.

Ferro-ilmenite

Synonym of columbite.

Dana VII, v. 1, p. 780, 785. 

Greenlandite

Synonym of columbite. ' 

Dana VII, v. 1, p. 780, 784.

Hermannolite . ..< . 

Synonym of columbite.

Dana VII, v. 1, p. 780, 785. 

Manganocolumbite

Variety of columbite.

Dana VII, v. 1, p. 700, 783-784. 

Toddite

Probably a uranoan variety of columbite.

Dana VII, v. 1, p. 785-786.

Ellsworth, H. V., written communication. ".

CORVUSITE

V2 04-6V2 05 .xH2 0

U=1.45 percent.

Work in progress indicates species may be valid.

Reexamination of type material shows presence of rauvite which might

account for reported uranium content. 

Am. Mineralogist, v. 18, p. 195-205, 1933. 

Weeks, A. D., written communication, March 1952.
206 CONTRIBUTIONS TO THE GEOLOGY OP URANIUM

EVANSITE

A13 (OH) 6P04 -6H2 0

Reported to contain small amounts of U.

Mineralog. Abs., v. 10, p. 375, 1948.

Strunz, Hugo, Mineralogische Tabellen, p. 176, Leipzig, 1949.

FISCHERITE

A12 (OH) 3PO4 -2HH2 0

Reported to contain small amounts of U.

Mineralog. Abs., v. 10, p. 375, 1948.

Strunz, Hugo, Mineralogische Tabellen, p. 175, Leipzig, 1949.

FLUORITE

CaF2

Some specimens, especially deep-purple ones, are radioactive. This can 

generally be shown to be due to inclusions of uranium minerals, but 

the fluorite itself may possibly have U in substitution for Ca.

Dana VII, v. 2, p. 28-37.

Strong alpha bombardment produces the semiopaque to opaque black 

variety antozonite as in the inner bands of halos surrounding uraninite and thorite inclusions. Centered thorium halos in fluorite 

have a maximum radius of about 41 microns. Uranium halos are 

smaller with a maximum radius of about 31 microns.

Am. Mineralogist, v. 37, p. 659-666, 910-930, 1952.

KATANGITE

Synonym of chrysocolla. 

May contain U in admixture. 

Mineralog. Abs., v. 9, p. 231, 1946.

OPAL

Si02 .nH2 0

Some varieties, particularly hyalite, show a green fluorescence due to 

uranium content.

U (in hyalite) = 0.000048-0.064 percent. 

Mineralog. Abs., v. 10, p. 374-375. 1948.

PYROMORPHITE 

Pb5 (F04) 3Cl

Some specimens are uraniferous.

Zeitschr, Kristallographie, Band 62, p, 177-178, 1925,

SCA.POLITE

(Na, Ca) 4Al3 (Al, Si) 3Si6 024(Cl, C03, S04)

A fluorescent variety contains 0.023 percent U.

Chemie der Erde, Band 9, p. 139-144,1934,

SEFSXROMITE

A mixture of ilmenite with minor amounts of radioactive minerals,

Dana VII, v. 1, p. 542.

Mmeralog. Mag, v. 20, p. 112, 1950.
INDEX

[Names in Italic are synonyms or varieties]

A Page

Abernathyite_.....________ ___ 175

Abukumalite ...___.__... .... 197

Adamite_ __.__...___ ..__ 205

Adelpholtte.................................... 180

Aldanite...................................... 190

Allanite...... ..-.....-. . .. ...... 197

Alvite......................................... 204

Ampangabeite________________.. 175

Andersonite...___._______...___ 175

Anglesobarite................................ .. 199

Anner8dtie.....................___ .. 188

Anthraxolite________________._ 198

Arrhenite..................................... 180

Asphaltite.---------..----.-.-.-.-----------. 198

Auerlite....................................... 190

Autunite... ......... .. 175

Azorite........................................ 204

Azor-pyrrhit................................... 201

Bagrationite ...................... .... 197

Baierite....................................... 206

Bariumphosphorurantt........................ 184

Bassetite..................................... 175

Bastnaesite. ____,_.-... -. 198

Bayleyite.....-.-_.......................... 176

Becquerelite____________..___ 176

Betaflte...................................... 176

Beta-uranophane_____..___ ... 176

Beta-uranopilite............................... 185

Beta-uranotile................................. 176

Billietite... - . . 177

Blomstrandine................................ 187

Blomstrandite................................. 176

Bodenbenderite....________ . 205

Bodenite. .................................. 197

Bragite....................................... 180

Brannerite__..____.______-....-. 177

BrSggerite..................................... 194

Broggite....................................... 198

Bucklandite................................... 197

Buszite....................................... 198

Calciocarnottte.. ............................ 193

Calciosamarskite. _._..-._____..... 177

Caldotantalite................................. 200

Calciotlwrite...-............................... 190

Calciouraconite................................ 194

Calciovolborthite. ............................ 202

CalciumarsenuranU........................... 195

Calciumphosphoruranit............. .... .. 175

Calcouranit................................... 175

CalyptolUe.................................... 204

Cappelenite_________...__.___ 198

Carbo-cer..................................... 192

Carbonate-fluorapatite..._...___....__ 198

Page

Carburan..................................... 192

Carnotite. ................................. 177

Caryocerite.................................... 200

Cerite.. ................................ 198

Chakolamprtte................................ 201

Chalcolite..................................... 192

Chatkolith.-................................... 192

Cheralite......_....................._.... 177

Chinglusuite................................. 198

Chinkolobwite................................. 189

Cttorothorite.................................. 191

Clarkeite .................................. 177

Cleveite.-- .- ......................... 194

Coffinite... -.............................. 177

Columbite.................................... 205

Copper uranite................................ 192

Coracite....................................... 194

Cordylite..................................... 198

Corvusite__ ... ___________ 205

Cryptolite.................................... 185

Cuprosklodowskite______________ 178

Cuprouranit.................................. 192

Cuprozippeite________________ 178

Curite........................................ 178

CyrtolUe...................................... 204

D

Dakeite....................................... 189

Davidite.._.......................____ 178

Delorenzite__________________ 178

Dewindtite..--..-...-....-......--...--.--... 179

Dianite....................................... 205

Diderichite.................................... 187

Djalmatte..................................... 200

Droogmansite..-..__....__............_ 179

Dumontite__........_.__...__...... 179

E

Edwardsite.....______.___.______ 185

Eliastte....................................... 181

EUsworthite.. -...-.-..:................... 201

Enalite .................................... 190

Endeiolite..................................... 201

Epiianthinite................................. 179

Eremite....................................... 185

Eschwegite.................................... 179

Eschynite..-.-----.---...._..._._._........ 179

Eucrasite..................................... 191

Euxenite_..........-..............---.--..- 179

Evansite..--.---_---.--..__-._..-._........ 206

Eytlandite.................................... 188

F

Ferghanite.-_---------..._._.....-.....--._-. 180

Fergusonite.....-------.-........--.__----- 180

FerrocolumbUe................................ 205

Ferro-ilmentte................................. 205

FerrothorUe................................... 191

207
208 CONTRIBUTIONS TO THE GEOLOGY OF URANIUM

Page

Fersmite.__.._.___________.__ 199

Fischerite_______.-._______.__.. 206

Fluochlore.................................... 201

Fluorite...___._-------___-_--_..__-_---_-_. .206.

Flutherite..................................... 183

Formanite___.-._.________._.. 181

Fourmarierite._.__.____________ 181

Freyalite...................................... 191

Fritzscheite.-....-._..__----------------- 181

G

Qastunite.--,-.------_.-___-.--.----.--- 181

Qilpinite...................................... 182

Greenlandite......-- .------.--------..---- 205

Guadarramite................................. 185

Gummite_______.-_.._....-..----- 181

H

Page

Malacon...............................___ 204

Manganocolumbite....-.----.-..__----._____ 205

Marignacite................................... 201

Masuyite_..-.-_-------------__------ 183

Medjidite..-._--------_-------__--____..__-_- 183

Melanocerite...._______________ 199

Mendeleyevite................................. 176

Mengite...........-.-....^................... 185

Meta-autunitc I--.-----------.----.----...-.. 183

Meta-autunite 11..--..-.. ------..--......-..- 184

Metachalcolite................................. 184

Metakalkuranite.............................. 183

Metakupferuranit............................. 184

Metasimpsmite............................... 200

Metatorbernite.. 181

Metatyuyamunlte__.. . 184

Meta-uranocircite____. _ --. . 184

Meta-uranopilite_ - - 184

Metazeunerite__--.------.--.--------.- . .185

Microlite__.....-..-....--.--.-....--------. 200

Monazite_.._---------_.-.-__--------- 185

Monazttoid................................... 185

Mosandrite....--..----..------.-.--------..-- 200

------------------------------ 197

Haddamite...... ________________'..' 200

Hagatalite...................._________ 204

Hatchettolite................................... 201

Hermannolite______.____.__.___ 205

Hielmite.__..__----._._----.---- -.-- 199

Hoegtveitite................................... 204

Hokutolite..... ~ r 199

Huttonite______________._____ 181 N

Hyblite........................................ 191 Naegite....................................... 204

HgdrmMore................................... 201 Nagetelite..................................... 197

Hydroeuxentte.. ............................ 175 Nasturan.....^............................... 194

Hydrosamarskite.............................. 188 Neogastunite.................................. 189

Hydrothorite................................ 191 Neotantalite................................... 200

	. Nicolayite.......................1............. 191

_,,... Niobtantal pyrochlore.-........................ 200 lanthinite..---------------------------------- 182 -,. ., ..,

, . ., Nwpyrochlor.................................. 201 famta. ................................. 182 Mi....-...---------- 194

Ishikawaite. --.- -. 182 NoMlte....................................... 186

J Novacekite... .. . - ise

Jachymovite______.___-..____-_____ 178 Nuevite________-__.___-..___----- 188

Johannite --------------------------------- 182 Nuolaite...................................... 203

Johnstrupite__-...__-. ................ 199

K Oerstedite..................................... 204

Kahlerite. -- - - - 182 Olieeiraite................................'..... 180

Kalk-uran-carbonat............................ 183 Opal.__.___ _____ ____.... 206

Kd-rarfveite.................................... 185 Orangite...................................... 191

Kasolite.. ................................. 182 Qrthite 197

Katangite.. . 200 oyamalite..................................... 204

Kiilopinite..... 183

KieaeUcupfer-uranoxyd......................... 178 P

Kochelite............................... ....... 180 ParaschoepUe................................. 189

Kolm____________.__-_____-_.... 199 Parsonsite_____________-__.______ ISO

Koppite..................... - 201 Peligotite.-.-................. - 182

Kupferarsenuranit............................ 185 Perrierite......-...-.-.-...-....-...-......-.. IQo

....................-- 192 Phosphocerite.............. ................. 186

L . Phosphuranylite._____---__.---__--.. 186

.....-..--........ 195 ^S^^^^: : :::::::::: ---"---- 183 pttWe...............------- i«

Lime-urantte.................................. 175 . . .. . -.01 I^K««........-------...- « SS^^::::::::::::::"::::":":::::: -

Lovozerite -- -. -...-._... 199 , 10.

-tj,,«/oC/,«.,__________.__ ____ X70 Polycrase . --..._ 187

	HJFJ M Priorite-... ............ ...... . la/

Mackintoshite................................. 191 Pyrochlore_-. .-..-..-.-...- -- 200

Magnesium-phospltOTuranite.........___.. 188 Pyromorphite_.-_____----__-----_ 206

Maitlandite................................... 191 PyrrhUe...................................... 201
GLOSSARY OF URANIUM- AND THORIUM-BEARING MINERALS 209

R Page

Babbittitc...__............................ 187

Randtte....................................... 176

Rauvite..................................._ 187

Renardite. _-_----.__.--___.-.-__._._-___..._. 187

Ribeirite...................................... 204

Richetite. ...............- .-........ 187

Rinkite.-.................................... 201

Rinkolite..--._.........................__ 201

Risdrite........... ........................._ 180

Rogersite..................................... 188

Rowlandite. .__________.__.___ 202

Rutherfordine_____________.. __ 187

Rutherfordite.................................. 180

Sabugalite....._-.. ....................._ 188

Salficite.. .................................. 188

Samarskite______.__...______- 188

Samiresite.................................... 176

Scapolite..................................... 206

Schoepite......---.-.------------.----..._. 189

Schroeckingerite_____.__________ 189

SefstrSmite....................-.-...-.....-.. 206

Sengierite-------------------------------.- 189

Sharpite.. .....________________ 189

Sipyltte....................................... 180

Sklodowskite..----.------ -..._.....__ 189

Soddyite..................................... 190

Stasite........................................ 179

Steenstrupine.. . ..__..___ 202

Studtite__.................................. 190

Swartzlte..................................... 190

Tachyaphaltite........................ ....._ 204

Tangette. ................................... 203

Tantatpyrochlore............................. 200

Tanteuxentte... ...... ...................... 180

Tengerite ___. 202

Thalenite..__.........................._ 202

Thorianite.-...---...----.-----_-.----._-. 190

Thorite_.-_................._..._._ 190

Thorogummite. _ _ ______. 191

Thucholtte................................... 192

Titanoniobite................................. 180

Titanothucholite............................... 192

Toddite....................................... 205

Torberite...................................... 192

Torbernite._..........................__ 192

Tritomite. ................................ 202

Troogerite... .----...-....-.-...-.....-.... 193

Tscheffkinite..._.___................... 193

Turanite_..............................._ 202

TurnerUe..................................... 186

Tyrite........................................ . 180

Tyuyamunite._____.................._ 193

Vase

Uraninite..__________________ 1U4

Uranite....................................... 192

Uran-kalk-kupfer carbonat..............___ 196

Uran-mica.................................... 192

Uranochalcite......__...__-__...___ 195

Uranocher...__....__......_.....__ 195

Uranocircite.................................. 184

Uranolepidite................................. 196

Uranoniobite_______.________._ 194

Uranophane________._________ 195

Uranopilite___________-______ 195

Uranopissite.................................. 194

Uranospathite________________ 195

Uranosphaerite________________ 195

Uranospinite_________________ 195

Uranotantalite................................ 188

Uranothallite.................................. 183

Uranothorite................................ 190,191

Uranotil........................._______ 195

Uranottte.................................._ 195

Uranphyllit................................... 192

Uran-pyrochlore............................... 201

Uranvitriol.................................... 182

Urdite........................................ 186

Uvanite....... -.-.-.... ................ 196

Uzbekite...................................... 203

Vandenbrandelte....____________ 196

Vandendriesscheite______. ____ 196

Vanoxite.__..__.._____....__ 202

Vietinghoflte.................................. 188

Voglianite.................................... 196

Voglite....................................... 196

Volborthite... . ... --. - 202

Vudywrtte.................................... 199

W

Walpurgite.....-.-.-.-.-..-------.-----..---- 196

Wastte........................................ 197

Wiikite.................................... 203

Wisaksonite................................... 191

XanthoTite.................................... 197

Xenotime.._____________ __.. 203

Yamagutilite.................................. 204

Yttrialite...-.............. . . - 203

YttrocolumJbite................................ 203

Yttrocrasite....... ........... ..... ... 203

Yttrogummite................................. 181

Yttro-ilmenite....-.. ....................... 188

Yttro-orthite... . ............................ 197

Yttrotantalite.--. ............... .. . 203

U Z

Ulrichite...................................... 194 Zeunerite..................................... 185

Umohoite.................................... 193 Zippeite - - 196

Uraconite--------...----..-----..-...---..... 194 Zircon__........... ........ . .... 203

Uralorthite.................................... 197 Zirkelite.. .. .... 1 ..........- . 204