GEOLOGICAL SURVEY CIRCULAR 194 

A GLOSSARY OF URANIUMAND THORIUM-BEARING 

MINERALS Second Edition 

By Judith Weiss Frondel and Michael Fleischer 

UNITED STATES DEPARTMENT OF THE INTERIOR 

Oscar L. Chapman, Secretary 

GEOLOGICAL SURVEY 

W. E. Wrather, Director 

GEOLOGICAL SURVEY CIRCULAR 194 

A GWSSARY OF URANIUM- AND THORIUM-BEARING MINERALS 

Second Edition 

By Judith Weiss Frondel and Michael Fleischer 

Washington D. C.,. February 1962 

·Free on application to the Geological Survey, Washington 26, D. C. 

CONTENTS 

IntrodYction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 

A. Uranium and thorium minerals ............................ 2 

B. Minerals with minor amounts 0f uranium and 

thorium ............................................... 12 

C. Minerals that should be tested for uranium and 

thorium ...............................•.......•....... 17 

D. Minerals that are nonuranium- or nonthorium-bearing, 

but that have been reported to contain impurities 

or intergrowths of uranium, thorium, or rare-earth 

minerals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . • . 20 

lndex 22 

iii 

GLOSSARY OF URANIUM- AND THORIUM-BEARING MINERALS 

Second Edition 

INTRODUCTION 

The first edition of this work was published as U. S. Geological Survey Cirular 74 in April 1950 and is now out of print. This second edition contains additionS, revisions, and corrections and brings the glossary up to date as of January 

1952. 

The compilation of this glossary is part of a continuing systematic survey of 

data pertaining to uranium and thorium minerals and to those minerals that contain 

traces or more of uranium and thorium. This survey, part of the work being done by 

the 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 inadequate, by work in the laboratory. The 

results will b~ reported from time to time and the authors welcome information on 

additional data and names. 

The glossary is divided into four groups: A, minerals containing uranium and 

thorium as major constituents; B, minerals containing minor amounts of uranium and 

thorium; c, minerals that, if investigated by modern analytical methods, might show 

uranium or thorium content; and D, minerals that are nonuranium- or 'nonthorium-bearing but that have been reported to contain impurities or intergrowths'of uranium, 

thorium, or rare-earth minerals. Uranium is more widespread in its,natural occurence than generally has been supposed and it is possible that the third group of 

minerals (C) will give valuable infor,mation when reinvestigated. 

It is hoped that this glossary will alleviate the confusion that obscures the 

nomenclature of these minerals. For many of them the confusion will remain until 

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

their type specimens have been lost and existing specimens bearing the species name 

have been found to be other substances (for example, in group A, uranochalcite and 

voglianite). Structural formulas are given for most of the minerals and oxide formulas are given where good data are not available. Identities and group relations 

are indicated. It might be well to relegate to obscurity the many synonyms existing in the literature. 

In the index there are 350 entries. These represent 182 species of which 90 are in group A, 40 are in group B, 37 are in group C, and 15 are in group D. These 

four categories are shown in the index by reference letters. 

The question is often asked, "How many uranium and thorium minerals are there?" 

If the group A is used as the criterion, there are about 90 such minerals to which 

have been applied 185 names. 

For most of the minerals a reference has been chosen from standard reference 

books and easily available journals. Dana VI and Dana VII stand for the 6th and 7th 

editions, respectively, of Dana's System of Mineralogy. 

Thanks are due to Pro~essor Clifford Frondel of the Department of Mineralogy 

and Petrography, Harvard University; to J. S. Vhay of the Geological Survey for 

pointing out errors in the first edition of this glossary and for making many valuable suggestions; and to others who have made us aware of other needed corrections. 

l 
A. URANIUM AND THORIUM MINERALS 

ALDANITE Dana VII, vol. 2, p. 985 

kTh02 ·lU02·mU03 ·lPbO 

Mineralog. Mag., vol. 28, p. 722, 1949 

Acad. sci., U .R .S .S., Fersman Memorial 

Volume, p. 79, 1946 

AMPANGABEITE 

(Y, Er, U, Ca, Th) 2(Nb, Ta, Fe, Ti)7018 ? 

Validity questionable; may be an inhomogeneous~lteration product of euxenite 

U = 17.1 percent, Th = 1.8 percent 

Dana VII, vol. 1, pp. 806-807 

Hydroeuxenite 

Synonym of ampangabeite 

Dana VII, vol. 1, p. 806 

ANDERSONITE 

Na2Ca(U02)(COs)s·6H20 

U = 39.2 percent 

Dana VII, vol. 2, p. 239 

AUTUNITE 

Ca(U02)2(P04)2·10-l2 H20 

U = 45.4 to 48.2 percent 

Dana VII, vol. 2, pp. 984-987 

Calciumphosphouranit 

Synonym of autunite 

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

Meta-autunite I 

Ca(U02)2(P04)2·2t-~ H20 

Not found in nature, but most museum 

specimens of autunite have been dehydrated to this phase 

Dana VII, vol. 2, p. 985 

Meta-autunite II 

Ca(U02)2(P04)2·0-6H20 

Not found in nature. Meta-autunite I 

passes into this phase on heating torv 

8o c 

2 

BASSETITE 

Fe(U02)2(P04)2·8H20 

U = 51.0 percent 

Dana VII, vol. 2, pp. 994-995 

Frondel, C., Harvard University, 

personal communication 

BAYIEYITE 

Mg2(U02)(COs)s·l8H20 

U = 28.9 percent 

Dana VII, vol. 2, pp. 237-238 

BECQUERELITE 

2UOs· 3H20 

U = 76.0 percent 

Dana VII, vol. l, pp. 625-627 

Cuttita, F., U. S. Geological Survey, 

unpublished analysis 

B:i,llietite 

BaO · 6UOs "l0H20? 

Work in progress indicates this may be a 

barian becquerelite 

U = 69.7 percent 

Mineralog. Abs., vol. ll, p. 109, 1950 

Frondel, J. W., U. S. Geological Survey, 

personal communication 

BETAFITE 

(u, Ca)(Nb, Ta, Ti)sOe·nH20? 

U = 16.3 to 24.5 percent 

Th = 1.0 to l.l percent 

Dana VII, vol. l, pp. 803-805 

Blomstrandite 

Synonym of betafite 

U = 16.3 percent 

Dana VII, vol. l, pp. 803-804 

Mendeleyevite 

Titanian betafite 

U = 13.7 percent 

Dana VII, vol. l, pp. 8o3-804 
Samiresite 

Has been considered a plumbian variety 

of betafite 

U = 18.7 percent 

Dana VII, vol. 1, pp. 8o3-805 

BETA-URANOPHANE 

Ca(U02)2Si207·6H20 

Dimorphous with uranophane 

U = 56.6 percent 

Am. Mineralogist, vol. 24, pp. 324-338, 

1939 

Randite 

A mixture of beta-uranophane, some 

tyuyamunite, ·and calcite 

Am. Mineralogist, vol. 35, pp. 245-250, 

1950 

BRANNERITE 

(U, Ca, Fe' Y, Th)3Ti5 0ls? 

U = 39.3 percent, Th = 3.6 percent 

Dana VII, vol. 1, pp. 774-775 

Rowe, J. J., U. S. Geological Survey, 

unpublished analysis 

CALCIOSAMARSKITE 

Probably (Ca, X, u, Th)3 (Nb, Ta, Fe, Ti, 

Sn)sOls 

X = yttrium and other rare earths 

U = 9.4 to 11.3 percent 

Th = 1.9 to 2.9 percent 

Dana VII, vol. 1, p. 772 

CARNOTITE 

K2(U02)2(V04)2·3H20 

H20 can range from l to 3 

U = 52.8 to 55.0 percent 

Dana VII, vol. 2, pp. 1043-1045 

CLARKEITE 

U03 , with nonessential H20 

U = 83.2 percent 

Dana VII, vol. l, pp. 624-625 

Frondel, c., Harvard University, 

personal communication 

CUPROSKLODOWSKITE 

Cu(U02 )2Si207 ·6H20 

U = 54.1 percent 

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

Jachymovite 

Synonym of cuprosklodowskite 

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

CURITE 

Pb2U5 017 ·4H20? ·' 

U = 61.1 percent 

Dana VII, vol. 1, pp. 629-631 

DAVIDITE 

Near Fe2 (Fe3 , Ce)2Ti6 017, with about 8 

percent rare earths and 5 percent U02 

U = 4.4 percent, Th = 0.12 percent 

Hey, M. H., Chemical index of minerals, 

British Museum, 1950 

Radioactive mineral from Tete district of 

Mozambique 

Possibly ABs(O, OH)7 

A= Fe2, rare earths, ~ Ca, Na, Zr, Th 

B = Ti, Fe3 , V, Cr 

Near davidite 

U = 2.7 percent, Th = 0.06-0.12 percent 

Mineralog. Mag., vol. 29, pp. 101-112, 

1950 

Guadarramite 

Possibly an intergrowth of ilmenite and 

davidite 

Mineralog. Mag., vol. 16, p. 361, 1913 

Bowie, S. H. U., Geological Survey of 

Great Britain, personal communication 

Studies by George Switzer, U. S. National 

Museum, indicate that this mineral may 

be a mixture of ilmenite and m.onazi te 

DELORENZITE 

(Y, U, Fe2 )(Ti, Sn?)30s? 

U = 8.7 percent 

Dana VII, vol. 1, p. 808 

DEWINDTITE 

Pb~(U02) (P04)4(0H)4·lOH20 U = 45.8 percent 

Dana VII, vol. 2, p. 875 

Am. Mineralogist, vol. 35, pp. 756-763, 

1950 

Stasite 

Synonym of dewindtite 

Am. Mineralogist, vol. 7, pp. 196-197, 

1922 
DIDERICHITE 

Contains uranium, water, and carbonate 

Species not well-defined, but work in progress indicates it is a valid species 

Dana VII, vol. 2, p. 275 

Frondel, J. W., U. S. Geological Survey, 

personal communication 

DJALMAITE 

(U, Ca, Pb, Bi, Fe)(Ta, Nb, Ti)3 09 ·nH20? 

May be microli te 

U = 10.4 percent 

Dana VII, vol. 1, p. 805 

Tavora, E., Anais acad. brazil. cienc., 

vol. 21, pp. 337-350, 1949 

DROOGMANSITE 

No chemical analysis has been made 

May be related to sklodowskite 

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

DUMONTITE 

Pb2(U02)s(P04)2(0H)4·3H20 

U = 46.5 percent 

Dana VII, vol. 2, pp. 928-929 

EPIIANTHINITE 

yUOs ·xH20? 

Good chemical analysis has not been made 

An alteration product of ianthinite 

Am. Mineralogist, vol. 32, pp. 344-350, 

1947 

ESCHYNITE 

Also aeschynite 

(Ce, Ca, Fe2, Th)(Ti, Nb)206 

Th = 9.9 to 15.4 percent 

Dana VII; vol. 1, pp. 793-796 

EUXENITE 

(Y, Ca, Ce, U, Th)(Nb, Ta, Ti)206 

U = 3.0 to 9.0 percent, Th = up to 4.3 

percent 

Dana VII, vol. 1, pp. 787-791 

Lyndochite 

Variety of euxenite-polycrase, relatively high in Ca and Th and low in U 

U = 0.6 percent, Th = 4.3 percent 

Dana VII, vol. 1, pp. 787, 789-791 

Oliveiraite 

Alteration product of euxenite 

Dana VII, vol. 1, p. 791 

4 

Tanteuxenite 

Variety of euxenite with Ta substituting 

for Nb 

U = 3.0 to 3.8 percent, Th = tr 

Dana VII, vol. 1, pp. 787, 789-790 

Titanoniobite 

Allied to euxenite 

Mineralog. Abs., vol. 29, p. 232, 1951 

FERGHANITE 

Us(V04)2·6H20 

Perhaps leached or weathered tyuyamunite 

U = 67.9 percent 

Dana VII, vol. 2, p. 1048 

FERGUSONITE 

(Y, Er, Ce, Fe)(Nb, Ta, Ti)04 

U = 0.8 to 6.3 percent, Th = 0.7 to 2.5 

percent 

Dana VII, vol. 1, pp. 757-762 

Adelpholite 

Synonym of fergusoni te?-

A poorly defined substance; possibly an 

altered mossite 

Dana VII, vol. 1, pp. 762, 778-779 

Arrhenite 

An altered fergusonite 

Dana VII, vol. 1, p. 762 

Bragite 

Synonym of fergusonite 

U = 7.2 percent 

Dana VII, vol. 1, pp. 757, 759, 761 

Kochelite 

Synonym of fergusonite 

Dana VII, vol. 1, pp. 757, 761 

Risorite 

Synonym of fergusonite 

U = 0.09 percent, Th = tr 

Dana VII, vol. 1, pp. 757-758, 760-762 

Rutherfordite 

An altered fergusonite 

Dana VII, vol. 1, pp. 757, 759-760, 762 
Sipylite 

Synonym of fergusonite 

U = 0.8 to 6.3 percent 

Dana VII, vol. l, pp. 757, 759-760, 762 

Synonym of fergusonite 

Dana VII, vol. l, pp. 757, 760-761 

FORMANITE 

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

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

Dana VII, vol. l, pp. 758, 760, 762 

FOURMARIERITE 

PbU401s · 'TH20 

U = 63.7 percent 

Am. Mineralogist, vol. 33, pp. 619-621·, 

1948 

FRITZCHEITE 

Mn(U02 )2 fiP, v)o4] 2 ·8H20? 

No actual analysis is available. May be 

the manganese analogue of torbernite 

Dana VII, vol. 2, p. 984 

GUMMITE 

Generic term for minerals occurring as alteration products of uraninite and 

not otherwise identified 

Group includes silicates, phosphates, 

and oxides 

Dana VII, vol. 1, pp. 622-625 

Eliasite 

Synonym of gummi te 

U = 57.2 percent 

Dana VII, vol. 1, pp. 622-624 

Pittinite 

Synonym of gununi te 

Dana VII, vol. 1, pp. 622-624 

Yttrogununite 

Yttrian variety of gummite 

An alteration product of yttrian 

uraninjte 

Dana VII, vol. l, pp. 622-624 

5 

HUTTONITE 

ThSi04 

Dimorph of thorite 

Th = 71.6 percent 

Am. Mineralogist, vol. 36, pp. 60-69, 

1951 

IANTHINITE 

2U02·7H20? 

U = 71.5 percent 

Dana VII, vol. 1, pp. 633-634 

ISHIKAWAITE 

(u, Fe, X)(Nb, Ta)04 

X = rare earths 

U = 19.3 percent 

Dana VII, vol. l, p. 766 

JOHANNITE 

Cu(U02)2(S04)2(0H)2·6H20 

U = 50.8 percent 

Dana VII, vol. 2, pp. 606-607 

Gilpinite 

Synonym of johannite 

Am. Mineralogist, vol. ll, pp. l-5, 1926 

KASOLITE 

Pb(U02)Si04·H20 

U = 40.5 percent 

Am. Mineralogist, vol. 7, pp. 128-129, 

1922 

KHLOPINITE 

(Y, U4 , Th)s(Nb, Ta, Ti, Fe)702o? 

Also chlopinite, hlopinite 

May be related to euxenite - polycrase 

U = 7.2 percent, Th = 1.9 percent 

Dana VII, vol. l, p. 792 

LIEBIGITE 

Ca2U(COs)4·lOH20 

U = 32.2 percent 

Dana VII, vol. 2, p. 240 

Uranothallite 

Synonym of liebigite 

Dana VII, vol. 2, p. 241 
Flutherite 

Synonym of uranothallite 

Am. Mineralogist, val. 35, pp. 251-254, 

1950 

Dana VII, vol. 2, p. 240 

MACKINTOSHITE 

(Th, U)Si04"H20? 

U = 19.7 percent, Th =up to 39.9 percent 

Dana VI, appendix I, p. 44 

Hydrothorite 

TbSi04·4H20 

Alteration product of mackintoshite 

U = 1.9 percent, Th = 50.7 percent 

Am. Mineralogist; vol. 13, p. 570,. 1928 

Pilbarite 

PbO·U03 ·Th02 ·2Si02·4H20 

Alteration product of mackintoshite; 

close-to thorogummite 

U = 24.4 percent, Th = 27.4 percent 

Am. Mineralogist, vol. 13, pp. 464-465, 

1928 

Thorogummite 

(Th, U)Si04·6H20? 

Alteration product of mackintoshite 

U = 20.2 percent, Th = 36.4 percent 

Dana VI, p. 893 

Chlorothorite 

Synonym of thorogurrilldte 

Dana VI, p. 893 

Nicolayite 

Synonym of thorogummite 

Am. Mineralogist, vol. 16, p. 409, 1931 

MAITLANDITE 

(U, Th, Pb)Si04"3H20? 

Close to mackintoshite 

U = 31.2 percent, Th = 22.7 percent 

Am. Mineralogist, vol. 16, p. 472, 1931 

MASUYITE 

Hydrated lead uranium oxide 

Work in progress indicates it may be a 

6 

valid species 

Soc. belge geologie Bull., vol. 70, 

pp. 212-225, 1947 

Frondel, J. W., U. S. Geological Survey, 

personal communication 

MEDJIDITE 

Supposedly a uranium sulfate 

Validity of species is questionable 

Dana VII, val. 2, p. 6oo 

METATORBERNITE 

Cu(U02)2(P04)2·8H20 

U = 50.8 percent 

Dana VII, vol. 2, p. 991 

Metachalcolite 

Synonym of metatorbernite 

Dana VII, vol. 2, p. 991 

META-URANOPILITE 

(U02)6(S04)(0H)lo"5H20? 

Recent work indicates validity of species 

is questionable 

Dana VII, vol. 2, pp. 582-583 

Frondel, C., Harvard U~iversity, personal 

communication 

Beta-uranopilit~ 

Synonym for meta-uranopilite 

Dana VII, vol. 2, p. 582 

METAZEUNERITE 

Cu(U02)2(As04)2·8H20 

U = 46.4 percent 

Dana VII, vol. 2, pp. 993-994 

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 

pana VII, vol. 2, pp. 989-990 

Kupferarsenuranit 

Synonym of zeuneri te 

Mineralog. Mag., vol. 28, p. 732, 1949 
MONAZITE 

(Ce, La, Th)P04 

Th = normally from a few percent to 10.6 

percent, but series probably extends 

to 26.4 percent 

Dana VII, vol. 2, pp. 691-696 

Cryptolite 

Synonym of monazite 

Dana VII, vol. 2, p. 691 

Edwardsite 

Synonym of monazite 

Dana VII, vol. 2, p. 691 

Eremite 

Synonym of monazite 

Dana VII, vol. 2, p. 691 

0 

Kararfveite 

Impure monazite 

Dana VII, vol. 2, p. 691 

Mengite 

Synonym of monazite 

Dana VII, vol. 2, p. 691 

Monazitoid 

Synonym of monazite 

Dana VII, vol. 2, p. 691 

Phosphocerite 

Synonym of monazite 

Dana VII, vol. 2, p. 691 

Turnerite 

Synonym of monazite 

Dana VII, vol. 2, pp. 691, 695 

Urdite 

Synonym of monazite 

Dana VII, vol. 2, p. 691 

NOHLITE 

(Ca, Mg, Fe2, X, U) 2(Nb, Zr, Fe3 )s01 o 

X = yttrium and other rare earths 

7 

Validity of species is questionable 

U = 13.0 percent 

Dana VII, vol. l, pp. 772-773 

NOVACEKITE 

Mg(U02)2(As04)2·8-lOH20 

U = 51.6 to 53.7 percent 

Am. Mineralogist, vol. 36, pp. 680-686, 

1951 

PARSONSITE 

Pb2(U02)(P04)2·2H20 

U = 26.1 percent 

Dana VII, vol. 2, pp. 913-914 

Am. Mineralogist, vol. 35, pp. 245-250, 

1950 

PHOSPHURANYLITE 

Cas(U02) 5 (P04)4(0H)4·2H20? 

U = 72.0 percent 

Dana VII, vol. 2, p. 876 ! 

Am. Mineralogist, vol. 35, pp. 756-763, 

1950 

POLYCRASE 

(Y, Ca, Ce, U, Th)(Ti, Nb, Ta)20e 

U = 5.5 to 12.4 percent, Th = up to 

4.7 percent 

Dana VII, vol. l, pp. 787-791 

Eschwegite 

Tantalian variety of polycrase 

Am. Mineralogist, vol. 36, p. 927, 1951 

POLYMIGNYTE 

A(Nb, Ti, Ta)04 

A = Ca, Fe2 , Y, Zr, Th 

Th = 3.4 percent 

Dana VII, vol. l, pp. 764-766 

PRIORITE 

(Y, Er,-Ca, Fe2, Th)(Ti, Nb)20e 

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

percent 

Dana VII, vol. 11 pp. 793-796 

Blomstrandine 

Also blomstrandinite 

Synonym of priorite 

Dana VII, vol. l, pp. 793-796 
RAUVITE 

Ca0·2U03 ·5V20s·l6H20 

U = 23.1 percent 

Dana VII, vol. 2, p. 1058 

Sherwood, A. M., U. S. Geological Survey, 

unpublished analysis 

RENARDITE 

Pb(U02)4(P04)2(0H)4·7H20 

U = 57.3 percent 

Dana VII, vol. 2, p. 928 

RICHETITE 

Contains Pb and U 

Validity of species is questionable 

Soc. belge geologie Bull., vol. 70, 

pp. 212-225, 1947 

RUTHERFORDINE 

U02COs? 

Composition needs to be checked 

U = 72.1 percent 

Dana VII, vol. 2, pp. 274-275 

SABUGALITE 

HAl(U02)4(P04)·l6H20 

U = 53.6 percent 

Am. Mineralogist, vol. 36, pp. 671-679, 

1951 

,. SALEEITE 

Mg(U02)2(P04)2·8-lOH20 

U = 50.9 to 53.0 percent 

Dana VII, vol. 2, pp. 988-989 

Am. Mineralogist, vol. 36, pp. 680-686, 

1951 

Magnesium-phosphoruranite 

Synonym of sal~eite 

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

SAMARSKITE 

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

Sn)206 

U = 8.4 to 16.1 percent, 

Th =up to 3.7 percent 

Dana VII, vol. 1, pp. 797-800 

8 

Annerodite 

Samarskite with parallel overgrowths of 

columbite 

Dana VII, vol. 1, pp. 797, 799 

Eytlandite 

Synonym of samarski te 

Dana VII, vol. l, p. 797 

Hydrosamarskite 

An altered samarskite 

Dana VII, vol. 1, pp. 799-800 

Nuevite 

Synonym of samar ski te 

Am. Mineralogist, vol. 36, p. 358, 1951 

Plumboniobite 

A niobate of Y, u, Pb, Fe and rare earths 

May be a plumbian variety of samarskite 

Dana VII, vol. 1, p. Boo 

Rogersite 

Probably an altered samarskite 

Of doubtful validity 

Dana VII, vol. 1, p. Boo 

Uranotantalite 

Synonym of samarski te 

Dana VII, vol. 1, p. 797 

Vietinghofite 

Supposedly a ferroan samarskite 

Dana VII, vol. 1, pp. 8oo-8ol 

Yttro-ilmenite 

Synonym of samarskite 

Dana VII, vol. 1, p. 797 

SCHOEPITE 

UOs·2H20 

U = 73.9 percent 

Dana VII, vol. 1, pp. 627-628 

Cuttita, F., U. S. Geological Survey, 

unpublished analysis 
Paraschoepite 

X-ray study indicates mineral is identical 

with schoepite 

Am. Mineralogist, vol. 32, pp. 344-350, 

1947; vol. 33, pp. 513-514, 1948 

Frondel, J. W., U. S. Geological Survey, 

personal· communication 

SCHROECKINGERITE 

NaCas(U02)(COs)s(S04)F·lOH20 

U = 26.8 percent 

Dana VII, vol. 2, p. 236 

Dakei;te 

Synonym of schroeckingerite 

Dana VII, vol. 2, p. 236 

SENGIERITE 

Cu(U02 ) (V04) ( OH) · 4-5H20'1 

U = 42.8 to 44.3 percent 

Dana VII, vol. 2, p. 1047 

SHARPITE 

(U02)s(COs)s(OH)2·6H20'1 

U = 68.6 percent 

Composition needs to be checked 

Dana VII, vo~. 2, p. 275 

. SKLODOWSKITE 

Mg(U02)2Si207·7H20 

U = 58.4 percent 

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

Chinkolobwite 

Synonym of sklodowskite 

Mineralog. Abs., vol. 3, p. 115, 1926 

SODDYITE 

(U02)s(Si0s)2(0H)e·3H20 

U = 71.6 percent 

Mineralog. Abs., vol. 3, p. 371, 1927 

STUDTITE 

Hydrated carbonate of U and Pb 

Species not well-defined, but work in 

progress indicates it is a valid species 

Dana VII, vol. 2, p. 275 

Frondel, J. W., U. S. Geological Survey, 

personal communication 

9 

SWARTZITE 

CaMg(U02)(COs)s·l2H20 

U = 32.6 percent. 

Dana VII, vol. 2, pp. 238-239 

THORIANITE 

(Th, U)02 

Forms complete series with uraninite 

Division between thorianite and uraninite ideally at Th:U = 1:1 

Dana VII, vol. 1, pp. 620-622 

THORITE 

ThSi04 

U =up to 9.0 percent, Th 25.2 to 62.7 

percent 

Dana VI, pp. 488-490 

Auerlite 

Phosphatian variety of thorite 

Th = 60.7 to 61.5 percent 

Dana VI, pp. 488-490 

Calciothorite 

Variety of thorite 

Th = 52.3 percent 

Dana VI, p. 489 

Enalite 

Uranoan variety of thorite 

U = 9.4 percent, Th = 25.4 percent 

Am. Mineralogist, vol. 18, p. 223, 1933-

Eucrasite 

Variety of thorite 

Th = 31.6 percent 

Dana VI, p. 489 

Ferrothorite 

A ferrian variety of thorite 

U = 2.4 percent, Th = 54.0 percent 

Am. Mineralogist, vol. 14, p. 78, 1929 

Freyalite 

Variety of thorite 

Th = 25.2 percent 

Dana VI, p. 489 
Hyblite 

(both alpha and beta) 

Hydrous basic sulfa-silicate of Th, with 

minor U, Fe, and Pb 

An alteration product of thprite 

Am. Mineralogist, vol. 12, pp. 368-372, 

1927 

Orangite 

Synonym of thorite 

U = 1.0 percent, Th 62.7 percent 

Dana VI, pp. 488-489 

Uranothorite 

Uranoan variety of thorite 

U = up to 10.1 percent, Th = 55.0 percent 

Am. Mineralogist, vol. 36, pp. 557-562, 

1951 

TORBERNITE 

Cu(U02)2(P04)2·8-l2H20 

U = 47.1 to 50.8 percent 

Dana VI~, vol. 2, pp. 981-984 

Chalkolith, chalcolite 

Synonyms of torbernite 

Dana VII, vol. 2, p. 981 

Copper uranite 

Synonym of torbernite 

Dana VII, vol. 2, p. 981 

Cuprouranit 

Synonym of torbernite 

Dana VII, vol. 2, p. 981 

Kupferphosphouranit 

Synonym of torbernite 

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

Uranite 

Synonym of torbernite-autunite group 

Dana VII, vol. 2, pp. 981-984 

Uranphyllit 

Synonym of torbernite 

Dana VII, vol. 2, p. 981 

10 

TROEGERITE 

Probably H2(U02)2(As04)2·~-12 H20 

U = 52.9 to 55.1 percent 

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

Dana VII, vol. 2, pp. 966-967 

Ca(U02)2(V04)2·nH20 

n = 9-10, but may be down to 4 

U = 48.1 to 54.0 percent 

Dana VII, vol. 2, pp. 1045-1047 

Calciocarnotite 

Synonym for tyuyamunite 

Dana VII, vol. 2, p. 1045 

URACONITE 

• 

Thi~ name has been used for uranium 

sulfates, but lacks specific meaning 

and should be abandoned 

Dana VII, vol. 2, p. 6oo 

Calciouraconite 

Near Ca(U02 )4(S04) 2 (0He)·20H20 

Validity questionable 

Boldyrev, A. K., Course of descriptive 

mineralogy, vol. 3, 1935, Leningrad 

and Moscow 

URANINITE 

Ideally U02 

U = 88.2 percent 

Usually more or less oxidized and ranging 

in composition to at least (U4,U6 )02.3• 

Also contains Th, Pb, Y, and other rare 

earths, in solid solution. Forms complete series with thorianite. Division 

between uraninite and thorianite ideally at U:Th = 1:1 

Dana VII, vol. 1, pp. 611-620 

Broggerite 

A thorian variety of uraninite 

U = 68.3 percent, Th = 5.3 percent 

Dana VII, vol. 1, pp. 611-614 

Cleveite 

A variety of uraninite containing rare 

earths 

U = 57.0 percent, Th = 4.0 percent 

Dana VII, vol. l,.pp. 611, 613-614 
Coracite 

Synonym of uraninite 

Dana VII, vol. 1, pp. 611, 615, 617 

Nasturan 

Synonym of pitchblende 

Dana VII, vol. 1, pp. 611, 614, 617 

Nivenite 

A variety of uraninite containing rare 

earths 

U = 57.8 percent, Th = 5.9 percent 

Dana VII, vol. 1, pp. 611, 613-615, 617 

Pitchblende 

A co1loform, fine-grained variety of 

uraninite 

U = 56.9 to 82.9 percent 

Dana VII, vo1. 1, pp. 611-619 

U1richite 

Synonym of uranini te 

Dana VII, vol. 1, pp. 611, 613, 617 

Uranoniobite 

Synonym of uranini te 

Dana VII, vol. 1, pp. 611, 613 

Uranopissite 

Synonym of uraninite 

Mineralog. Mag., vol. 16, p. 374, 1913 

URANOCHALCITE 

An ill-defined uranium sulfate of doubtful validity 

Dana VII, vo1. 2, p. 6oo 

URANOCHER 

A generic term used chiefly for uranium 

sulfates, and, in part, uranium oxides 

Dana VII, vol. 2, pp. 581, 598 

URANOCIRCITE 

Ba(U02)2(P04)2·8H20 

U = 47.1 percent 

Dana VII, vol. 2, pp. 987-988 

11 

Bariumphosphouranit 

Synonym of uranocircite 

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

URANOPHANE 

Ca(U02)2Si207·6H20 

U = 56.6 percent 

Dana VI, p. 699 

Lambertite 

Synonym of uranophane 

Am. Mineralogist, vol. 11, pp. 155-157, 

1926 

Uranotil 

Synonym of uranophane 

Dana VI, p. 699 

URANOPILITE 

(U02)a(S04)(0H)1o·l2H20 

U = 67.9 percent 

Dana VII, vol. 2, pp. 581-582 

URANOSPATHITE 

A hydrated uranyl compound, perhaps an 

arsenate or phosphate, related to the 

autunite group, but the full composition 

is not known 

Dana VII, vol. 2, p. 990 

URANOSPH.AERITE 

Bi2U20s·3H20? 

U = 43.6 percent 

Dana VII, vo1. 1, p. 631 

URANOSPINITE 

Ca(U02)2(As04)2·8-12H20 

U = 45.9 to 52.8 percent 

Dana VII, vol. 2, pp. 990-991 

Calciumarsenuranit 

Synonym of uranospinite 

Minera1og. Mag., vo1. 28, p. 732, 1949 

UVANITE 

U2Va021·15H20? 

U = 34.3 percent 

Dana VII, vol. 2, p. 1056 
V ANDENBRANDEITE 

CuU04'2H20 

U = 59.3 percent 

Dana VII, vol. 1, pp. 632-633 

Uranolepidite 

Synonym of vandenbrandeite 

Am. Mineralogist, vol. 19, pp. 235-236, 

1934 

VANDENDRIESSCHEITE 

Hydrous lead uranium oxide 

Work in progress may establish the species 

as valid 

Soc. belge geologie Bull., vol. 70, 

pp. 212-225, 1947 

Frondel, J. W., U.·S. Geological Survey, 

personal communication 

VOGLIANITE 

A hydrous calcium and uranium sulfate of 

questionable validity 

Dana VII, vol. 2, p. 6oo 

B. MINERALS WITH MINOR AM 

ABUKUMALITE 

(Th, Ca, Y) 5 (Si04, P04, Al04)s(O, F) 

Related to apatite 

Th = 0.8 percent 

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

Strunz, H., Mineralogische Tabellen, 

p. 167, Leipzig, 1949 

ALLANITE 

(Ca, Ce, Th)2 (Al, Fe, Mg) 3 Sis012(0H) 

U = 0.02 percent, Th = up to 3.2 percent 

Dana VI, pp. 522-526 

Bagrationite 

Variety of allanite 

Name also refers to a cerian variety of 

epidote 

Dana VI, pp. 518-519 

Bucklandite 

Synonym of allanite 

Dana VI, pp. 522-523, 525 

12 

VOGLITE 

Ca2CuU(C03 ) 5 ·6H20? 

U = 32.6 percent 

Dana VII, vol. 2, p. 237 

WALPURGITE 

Probably Bi4 (U02)(As04)204·3H20 

U = 15.9 percent 

Dana VII, vol. 2, pp. 796-797 

ZIPPEITE 

(U02)(S04)(0H)2·nH20 

H20 AJ 4, but apparently is variable 

U = 64.1 percent 

Dana VII, vol. 2, p. 598 

Cuprozippeite 

Cu(U02)s(S04)s(OH)2·llH20 

Validity questionable 

Boldyrev, A. K., Course of descriptive 

mineralogy, vol. 3, p. 83, 1935, 

Leningrad and Moscow 

S OF URANIUM AND THORIUM 

Muromontite 

Apparently related to allanite but containing much of the Y and Be metals 

Dana VI, p. 526 

Bodenite 

Related to muromontite in composition; 

contains more yttrium than cerium 

Dana VI, p. 526 

Nagatelite 

Phosphatian variety of allanite 

Th = 0.8 percent 

Am. Mineralogist, vol. 16, pp. 343-344, 

1931 

Orthite 

Synonym of allanite 

Dana VI, pp. 522-526 
Uralorthite 

Synonym of allanite 

Dana VI, pp. 523-525 

Wasite 

Altered allanite 

Th = 0.83 to 0.86 percent 

Dana VI, p. · 526 

Xanthorite 

Altered allanite 

Dana VI, pp. 522-523, 525 

Yttro-orthite 

Also yttrium orthite 

Variety of orthite containing 8 percent 

Y20s 

Mineralog. Mag., vol. 23, p. 639, 1934 

ANTHRAXOLITE 

A nickeliferous a~d uraniferous hydrocarbon 

U = 0.003 percent 

Am. Mineralogist, vol. 19, pp. 426-428, 

1934 

ASPHALTITE 

Also asphaltum 

u = 0.001 percent 

Includes solid bituminous hydrocarbons 

known as albertite, impsonite, gilsonit~ 

grahamite, nigrite and uintaite 

Mineralog. Mag., vol. 15, p. 417, 1910 I 

Broggite 

A variety of asphaltite 

Mineralog. Mag., vol. 24, p. 6o4, 1937 

BASTNAESITE 

(Ce, La)C03 F 

U and Th present, but less than l percent 

U. S. Geological Survey, manuscript report 

Dana VII, vol. 2, pp. 289-291 

CAPPELENITE 

Ba(Y, Ce, La)6B60l2(0H)2(Si04)3 

Th = 0.42 percent 

Strunz, H., Mineralogische Tabellen, 

p. 193, Leipzig, 1949 

13 

CARBONATE-FLUORAPATITE 

A carbonatian variety of fluorapatite 

which is an important constituent of 

many phosphate f'OCkS . Analyf?eS show 

U up to 0.02 percent 

Dana VII, vol. 2, pp. 879, 883-884 

Unpublished analyses, Trace Elements 

Section, U. S. Geol. Survey 

CERITE 

A cerium silicate with minor Ca and Fe. 

Formula uncertain 

U = 0.4 percent, Th = 0.3 percent 

Am. Mineralogist, vol. 25, pp. 381-404, 

1940 

CHINGLUSUITE 

A complex silicate of Na, Mn, Ca, and Ti, 

containing small amounts of Th and rare 

earths 

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

CORDYLITE 

(Ce, La)2Ba(COs)sF2 

Th = 0.26 percent 

Dana VII, vol. 2, pp. 285-287 

FER SMITE 

(Ca, Ce, Na)(Nb, Ti, Fe, Al)2(0, OH, F)6 

Th = 0.42 percent 

Acad. sci.,U.R.S.S., C.R., vol. 52, 

pp. 69-71, 1946 

HIELMITE 

Also hjelmite 

AB205 or A2Bs01o 

A Y, Fe2 , U4 , Mn, Ca 

B = Nb, Ta, Sn, W 

U = 4.0 to 4.3 percent 

Dana VII, vol. 1, pp. 779-780 

HOKUTOLITE 

Plumboan variety of barite. Radioactive 

mixture of Pb and Ba sulfate . Probably 

contains Ra, Th, and U 

Dana VII, vol. 2, pp. 4o8, 411 

Anglesobarite 

Synonym of hokutoli te 

Dana VII, vol. 2, pp. 4o8, 411 
JOHNSTRUPITE 

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

Ti 

Close to rinkite 

Th = 0.7 percent 

Dana VI, pp. 720-721 

KOLM 

Material resembling oil shale 

Form in which uranium is present is 

unknown 

U = 0.43 percent 

Washington Acad. Sci. Jour., vol. 21, 

pp. 409-414, 1931 

LOVCHORRITE 

Ce2 (Ti03 )3 ·10CaSi03 ·2CeF3 

U = 0.03 percent, Th =up to 0.7 percent 

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

Mineralog. Abs., vol. 6, pp. 341-343, 

1936 . 

Ce2(Ti03)3·5(Ca, H)Si03 

An altered lovchorrite 

Th = about 1 percent 

Mineralog. Abs., vol. 6, pp. 341-343, 

1936 

LOVOZERITE 

A complex ~ilicate of Ti and Zr, with a 

minor amount of Th 

Th = 0.50 percent 

Mineralog. Abs., vol. 7, pp. 468-469, 

1940 

.MELANOCERITE 

Chiefly a borosilicate of the Ce and Y 

metals 

Th = 1.5 percent 

Dana VI, pp, 414-415 

Caryocerite 

Near melanocerite, but contains more Th 

Th = 12.0 percent 

Dana VI, p. 415 

MICRO LITE 

(Na, Ca)2(Ta, Nb) 206 (0, OH, F) 

U = up to 5.1 percent, Th = 0.2 percent 

Dana VII, vol. 1, pp. 748-754 

14 

Calciotantalite 

Possibly a mixture of microlite and 

tantalite 

Dana VII, vol. 1, p. 787 

Hadctamite 

Synonym of microlite 

Dana VII, vol. 1, p. 748 

Metasimpsonite 

An alteration product of simpsonite, 

later identified with microlite 

Dana VII, vol. 1, p. 755 

Neotantalite 

An altered microlite with composition 

close to tantalite 

U = tr 

Dana VII, vol. 1, pp. 748, 750-751, 753 

MOSANDRITE 

Complex silicate of Na, Ca, Ce, and Ti 

Close to rinkite 

Th = 0.3 percent 

Dana VI, pp. 721-722 

Zentralbl. Mineralogie, 1934, Abt. A, 

pp. 76-79 

PISEKITE 

Essentially a niobate-tantalate-titanate 

of U and rare earths, with Th and Sn. 

No quantitative analysis available. 

May be related to ampangabeite 

Dana VII, vol. 1, pp. 807-808 

PYROCHLORE 

(Na, Ca)2 (Nb, Ta)20sF 

U =up to'l,4 percent usually, but some 

varieties are high in U 

Th = up to 4.4 percent 

Dana VII, vol. 1, pp. 748-754 

Chalcolamprite 

Synonym of pyrochlore 

Dana VII, vol. 1, pp. 748, 750, 754 

Ellsworthite 

An altered uranian variety of pyrochlore 

related to hatchettolite 

U = 17.1 percent 

Dana VII, vol. 1, pp. 748, 750-752, 755 
Endeio~ite 

Similar in composition to chalcolamprite 

An altered pyrochlore? 

Dana VII, vol. 1, pp. 748, 754 

Hatchettolite 

Uranian variety of pyrochlore 

U = 14.0 percent, Th = 0.5 percent 

Dana VII, vol. 1, pp. 748, 750-752, 754 

Koppite 

Synonym of pyrochlore 

Dana VII, vol. 1, pp. 748, 754 

Marignacite 

Synonym of pyrochlore 

Th = 0.2 percent 

Dana VII, vol. 1, pp. 748, 750-752, 755 

Pyrrhite 

Synonym of pyrochlore 

Dana VII, vol. 1, pp. 748, 752, 754 

RINKITE 

Ce2(Ti03)s·lOCaSi03 ·3CaF2 

Intermediate member of lovchorritecalcium-rinkite series 

Th = small amounts 

Mineralog. Abs., vol. 6, pp. 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., vol. 21, p. 575, 1928 

Mineralog. Abs., vol. 6, pp. 341-343, 

1936 

ROWLANDITE 

(Y, La, Ce)4Fe(F, Si207)2? 

U = 0.4 percent · 

Possibly a metamict thalenite 

Dana VI, p. 1047 

Strunz, H., Mineralogische Tabellen, 

p. 194, Leipzig, 1949 

STEENSTRUPINE 

Complex silicate of rare earths, 

Th, Na, K, Fe, Mn, ~~, P, Be, Al, and 

15 

Ta, with (OH) and F 

Th = 6.2 percent 

Dana VI, p. 415 

Strunz, H., Mineralogische Tabellen, 

p. 192, Leipzig, 1949 

TENGERITE 

CaYs(C03)4(0H)s·3H20? 

The originally described tengerite, 

Dana VI, pp. 306-307, is a different 

mineral, supposedly beryllium yttrian 

carbonate; no published analysis 

Th = 0.26 percent 

Dana VII, vol. 2, pp. 275-276 

THALENITE 

Y4Si401s(OH)2 

Related to yttrialite 

Th = 0.16 percent 

Dana VI, appendix I, p. 68 

THUCHOLITE 

A complex of uraninite with hydrocarbon 

U = up to about 45 percent in the ash, 

Th = up to about 41 percent in the ash 

Great Britain Geol. Survey Bull. 3, 

pp. 1-19, 1951 

Car bur an 

A hydrocarbon complex related to 

thucholite 

U = 4.29 percent 

Mineralog. Abs., vol. 6, p: 437, 1936 

Titanothucholite 

Titanian variety of thucholite 

U = 5.35 to 6.40 percent 

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

TRITOMITE 

A borosilicate of Ce, Y, Ca, Th, and F; 

exact formula uncertain 

Th = 7.5 to 8.3 percent 

Dana VI, p. 416 

TSCHEFFKINITE 

Also chevkinite 

Complex silicate of rare earths, Fe, Mn, 

Mg, Ca, Al, Ti, Th, and U 

U = 2.3 percent, Th = up to 18.4 percent 

Am. Mineralogist, vol. 31, pp. 582-588, 

1946 
Perrierite 

Perhaps identical with tscheffkinite 

Th = 4.0 percent 

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

TURANITE 

Supposedly Cu5 (V04)2(0H)4 

Seems to be related to mottramite 

Reported to contain 3.2 percent U 

Dana VII, val. 2, p. 818 

VANOXITE 

Perhaps 2V204·V20s·8H20 

Reported to contain up to 0.5 percent U; 

work in progress indicates species may 

be invalid 

Dana VII, vol. 1, pp. 601-602 

VOLBORTHITE 

Perhaps Cus(V04)2'3H20 

Reported to contain 3.1 percent U 

Dana VII, val. 2, pp. 816-819 

Calciovolborthite 

Probably CuCa(V04 )(0H) 

Possibly only a calcian variety of 

volborthite 

Dana VII, val. 2, pp. 816-818 

Tangeite 

Also tangu~ite 

Appears to be identical with calciovolborthite 

Dana VII, val. 2, pp. 816-818 

Uzbekite 

Synonym of volborthite 

Dana VII, val. 2, p.818 

WI I KITE 

Ill-defined mixture and alteration 

product of minerals high in Nb, Ta, Ti, 

Si, andY 

U = up to 13.2 percent, Th = 0.09 to 

3.7 percent 

Comm. geol. Finlande Bull. 13, no. 82, 

1928; idem, no. 149, 1950 

Dana VII, val. 1, p. 8ol 

16 

Nuolaite 

A mixture similar to wiikite 

Th = 1.8 to 3.5 percent 

Dana VII, val. 1, p. 801 

XENOTIME 

YP04 

U = up to 3.6 percent, Th = up to 2.2 

percent 

Dana VII, vol. 2, pp. 688-691 

YTTRIALITE 

Silicate of Th and Y metals chiefly 

Possibly thalenite with much Th 

U = 0.8 percent, Th = 10.5 percent 

Dana VI, p. 512 

Strunz, H., Mineralogische Tabellen, 

p. 194, Leipzig, 1949 

YTTROCRASITE 

(Y, Th, U, Ca)2Ti4011? 

U = 2.3 percent, Th = 7.7 percent 

Dana VII, val. 1, p. 793 

YTTROTANTALITE 

(Fe, Y, U)(Nb, Ta)04 

U = 3.4 to 3.9 percent, Th = 0.6 to 0.7 

percent 

Dana VII, val. 1, pp. 763-764 

Yttrocolumbite 

Similar to yttrotantalite 

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

ZIRCON 

ZrSi04 

U and Th low in most specimens, but up to 

2.7 per~ent U and up to 13.1 percent 

Th reported 

Dana VI, pp. 482-486 

Alvite 

Variety of zircon, near cyrtolite 

Th = 13.1 percent 

Dana VI, pp. 487-488 

Azorite 

Variety of zircon 

Dana VI, pp. 482, 484 
Calyptolite 

Probably altered zircon 

Dana VI, pp. 482, 486 

Cyrtolite 

Altered zircon, containing u, Th, Y and 

other rare earths 

U = up.to 1.4 percent 

Dana VI, p. 487 

Hagatalite 

Synonym of zircon 

U = trace, Th = 1.3 percent 

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

Hoegtveitite 

May be alvite 

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

Malacon 

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 

U = 2.4 to 2.7 percent, Th = 2.5 to 4.4 

percent 

Mineralog. Abs., val. 2, p~ 36, 1923 

Oerstedite 

Altered zircon 

Dana VI, p. 486 

Oyamalite 

Variety of zircon 

Th = 0.5 percent 

Am. Mineralogist, val. 11, pp. 137-138, 

1926 

Tachyaphaltite 

Probably altered zircon 

Dana VI, p. 486 

Yamagutilite 

Also yamaguchilite_ 

Variety of zircon 

Contains P205 and rare earths 

Mineralog. Mag., val. 24, p. 626, 1937 

ZIRKELITE 

(Ca, Fe, Th, U) 2(Ti, Zr)205 ? 

U = 1.4 percent, Th = 6.4 percent 

Dana VII, val. 1, p. 74o 

C. MINERALS THAT SHOULD BE STED FOR URANIUM AND THORIUM 

AMBATOARINITE 

Carbonate of Sr and rare earths 

May be related to ancylite 

Dana VII, val. 2, p. 293 

ANCYLITE 

(Ce, La)4(Sr, Ca)s(COs)7(0H)4·3H20 

Dana VII, val. 2, pp. 291-293 

Weibyite 

A fluocarbonate of Ce and La, with minor 

Ca and Sr 

May be related to ancylite 

Dana VII, val. 2, p. 293 

BAZZITE 

Silicate of scandium, with Fe, Na, and 

rare earths 

Mineralog. Abs., vol. 8, p. 105, 1941 

17 

BECKELITE 

Ca3 (Ce, La, Pr, Nd)4Sis014 

Dana VI, appendix II, p. 14 

BEIYINITE 

Undetermined mineral containing La, Ce, 

Y, and Er 

Mineralog. Abs., val. 6, p. 151, 1935 

BRITHOLITE 

(Na, Ce, Ca) 5F(Si04, P04)3 

Strunz, H., Mineralogische Tabellen, 

p. 167, Leipzig, 1949 

BUSZITE 

Silicate of rare earths 

Am. Mineralogist, vol. 14, pp. 438-439, 

1929 
CALCIO -ANCYLITE 

(Ce, La)4 (Ca, Sr)3 (C03)7(0H)4·3H20 

Dana VII, vol. 2, pp. 291-293 

CARBOCER 

A·hydrocarbon high in Ce 

Great Britain Geol. Survey Bull. 3, 

p. 3, 1951 

CENOSITE 

Also kainosite 

Ca2(Ce, Y)2(C03)Si4012·1-2 H20 

Strunz, H., Mineralogische Tabellen, 

p. 198, Leipzig, 1949 

CHURCHITE 

(Ce, Ca)P04·2H20 

Dana VII, vol. 2, pp. 703, 773 

ERDMANNITE 

Hydrous silicate of Ce, Y, Fe, Mn, Al, 

and Ca 

A mixture of homilite with a mineral in 

the melanocerite group 

Dana VI; pp. 416, 507 

ERIKITE 

Phosphate-silicate of rare earths, Al, 

Ca, and Na 

Mineralog. Mag., vol. 14, p. 348, 1907 

EUDIALYTE 

X5Y2Sis01s(OH, Cl) 

X = Ca, Na, Ce, and other rare earths 

Y = Zr, Fe, Nb 

Dana VI, pp. 4o9-412 

Eucolite 

Same as eudialyte, but with different 

optical sign 

Dana VI, pp. 409-412 

FLORENCITE 

CeA13 (P04)2(0H)s 

Dana VII, vol. 2, pp. 831, 838-839 

FLUOCERITE 

(Ce, La, Nd)F3 

Dana VII, vol. 2, pp. 48-50 

18 

Tysonite 

A synonym of fluocerite 

Dana VII, vol. 2, pp. 48-50 

GADOLINITE 

Be2FeY4Si2013 

Dana VI, pp. 509-512 

HELLANDITE 

(Ca, Y, Er, Mn)3 (Al, Fe)H20(Si04)2 

Strunz, H., Mineralogische Tabellen, 

p. 190, Leipzig, 1949 

KONDRIKITE 

Also kondrikovite 

mNa Al Si 01o·n(ce4(Ti20s)3·lOCa~i20s] 

Natrolite with microscopic inclusions of 

rinkite-like mineral 

Mineralog. Abs., vol. 6, pp. 341-343, 

1936 

KNOPITE 

In perovskite series 

Dana VII, vol. l, pp. 730-733 

LANTHANITE 

(La, Ce)2(C03)2·8H20 

Dana VII, vol. 2, pp. 241-243 

LESSINGITE 

Silicate of rare earths 

Mineralog. Abs., vol. 10, P• 245, 1940 

LOPARITE 

Perhaps (Na, Ce, Ca)2(Ti, Nb)20s 

End member in perovskite-knopitelopari te. series 

Dana VII, vol. l, pp. 730, 732-734 

LORANS KITE 

(Y, Ce, Ca)(Ta, Zr)04? 

Dana VII, vol. l, p. 767 

.METALOPARITE 

Hydrous titano-niobate of rare earths, 

pseudomorphous after loparite 

Mineralog. Mag., vol. 26, p. 339, 1943 
OBORITE 

Undetermined mineral containing La, Ce, 

Y, and Er 

• Mineralog. Abs., val. 6, p. 151, 1935 

PARISITE 

(ce, La) 2Ca(C03 )sF 

Dana VII, val. 2, pp. 282-285, 287 

Yttroparisite 

Composition near parisite, but contains 

much yttria 

Dana VII, val. 2, p. 285 

PEROVSKITE 

CaTi03 

Some analyses show rare earths 

Dana VII, val. 1, pp. 730-734 

Dysanalyte 

Synonym of perovskite 

Dana VII, val. l, pp. 730-732 

RETZIAN 

Basic arsenate of Mn, Ca, and rare earths 

Dana VII, val. 2, pp. 794-795 

RHABDOPHANE 

Also rhabdophanite 

{Ce, La, Nd)P04·H20 

Dana VII, val. 2, p. 774 

Scovillite 

Synonym of rhabdophane 

Dana VII, val. 2, p. 774 

SCHETELIGITE 

{Ca, Y, Sb, Mn)2(Ti, Ta, Nb) 2 (0, OH)7 

Dana VII, vol. 1, p. 757 

SPHENE 

Essentially CaTiSi05 , but commonly 

contains rare earths, Nb, and oth~r 

elements 

Am. Mineralogist, val. 32, pp. 637-642, 

1947 

19 

Keilhauite 

Yttrian variety of sphene 

Dana VI, p. 717 

Yttrotitanite 

Synonym of keilhauite 

Strunz, H., Mineralogische Tabellen, 

p. 192, Leipzig, 1949 

Titanite 

Synonym of sphene 

Dana VI, p. 712 

SYNCHISITE 

(Ce, La)Ca(COs)2F 

May be related to parisite 

Dana VII, val. 2, pp. 287-289 

THORTVEITITE 

(Sc, Y)2Si207 

Am. Mineralogist, vol. 7, pp. 195-196, 

1922 

Befanamite 

Synonym of thortveitite 

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

TOERNEBOHMITE 

Chiefly R3 (F, OH)(Si04)2 

R = Ce(La, Nd), Al, Fe, Mn, ·Mg, Ca 

Am. Mineralogist, val. 6, pp. 118-119, 

1921 

WEINSCHENKITE 

(Y, Er)P04·2H20 

Am. Mineralogist, val. 29, pp. 97-107, 

1944 

Dana VII, vol. 2, pp. 703, 771-773 

YTTROTUNGSTITE 

Formerly thorotungstite 

Contains Y and Ce, but no Th or Zr 

Mineralog. Abs., vol. 11, p. 189, 1951 
D. MINERALS THAT ARE NONURANIUM- OR NONTHORIUM-BEARING, 

BUT THAT HAVE BEEN REPORTED TO CONTAIN IMPURITIES OR 

INTERGROWTHS OF URANIUM, THORIUM, OR RARE-EARTH MINERAlS 

ADAMITE Ferrocolumbite 

Zn2(0H)As04 

Reported to contain small amounts of U 

Minera1og. Abs., vol. 10, p. 375, 1948 

Strunz, H., Mineralogische Tabellen, 

p. 161, Leipzig, 1949 

BADDEIEYITE 

Zr02 

Analyses show traces of rare earths 

Dana VII, vol. 1, pp. 607-610 

Brazilite 

Mixture of fibrous baddeleyite, zircon, 

altered zircon, and other minerals 

Dana VII, vol. 1, p. 610 

Caldasite 

Mixture of baddeleyite, zircon, altered 

zircon, and other minerals 

Dana VII, vol. 1, p. 610 

Zirkite 

Mixture of baddeleyite, zircon, altered 

zircon, and other minerals 

Minera1og. Mag., vol. 18, p. 390,1919 

BODENBENDERITE 

Mixture of fluorite and spessartite 

U = 0.11 percent 

Am. Mineralogist, vol. 34, pp. 6o8-611, 

1949 

COIUl.ffiiTE 

(Fe, Mn)(Nb, Ta)20e 

U =up to 1.7 percent 

Dana VII, vol. 1, pp. 78o-785 

Baierite 

Also baierine 

Synonym of columbite 

Dana VII, vol. 1, p. 780 

Dianite 

Synonym of co1umbi te 

Dana VII, vol. 1, p. 78o 

20 

Synonym of columbi te 

Dana VII, vol. 1, pp. 78o, 783 

Ferro-ilmenite 

Synonym of columbi te 

Dana VII, vol. 1, pp. 786, 785 

Greenlandite 

Synonym of columbi te 

Dana VII, vol. 1, pp. 780, 784 

Hermannolite 

Synonym of columbi te 

Dana VII, vol. 1, pp. 780, 785 

Manganocolumbite 

Variety of columbite 

Dana,VII, vol. 1, pp. 780, 783-784 

Todd.ite 

Probably a uranian variety of columbite 

U = 9.8 percent 

Dana VII, vol. 1, pp. 785-786 

Ellsworth, H. V., Geological Survey of 

Canada, personal communication 

CORVUSITE 

V204·6U20s·xH20 

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 

Weeks, A. D., personal communication, 

March 1952 

Am. Mineralogist, vol. 18, pp. 195-205, 

1933 

EVANSITE 

Als(OH)eP04·6H20 

Reported to contain small amounts of U 

Minera1og. Abs., vol. 10, p. 375, 1948 

Strunz, H., Mineralogische Tabellen, 

p. 176, Leipzig, 1949 
FISCHERITE 

Al2(0H)sP04 ·~ H20 

Reported to·contain small amounts of U 

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

Strunz, H., Mineralogische Tabellen, 

p. 175, Leipzig, 1949 

FLUORITE 

Some specimens, especially those of deeppurple color, show radioactivity. 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, vol. 2, pp. 28-37 

Strong alpha bombardment produces the 

semiopaque to opaque black variety 

antozonite as in the inner bands of 

halos surrounding uranini te and thori te 

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. 

Phair, George, and Onoda, Kiyoko, 

unpublished manuscript, 1951 

Yttrocerite 

Variety of fl~orite containing rare 

earths 

Dana VII, vol. 2, pp. 29, 33-34 

Yttrofluorite 

Yttrian variety of fluorite 

Dana VII, vol. 2, pp. 29, 32-34 

KALKOWSKITE 

Fe2TisOs? 

Analysis shows rare earths 

Dana VII, vol. 1, pp. 773-774 

KATANGITE 

Synonym of chrysocolla 

May contain U in admixture 

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

21 

OPAL 

Si02·nH20 

Some varieties, particularly hyalite, 

show ~ green fluorescence due to uranium content , _

7 -4 

U (in hyalite) = 4.8 x 10 to 6.4 x 10 

gjg 

Mineralog. Abs., vol. 10, pp. 374-375, 

1948 

PYROMORPHITE 

Pbs (P04 )scl 

Some specimens are uraniferous 

Zeitschr. Kristallographie, vol. 62, 

pp. 177-178, 1925 

SCAPOLITE 

(Na, Ca)~l (Al, Si)sSie024(Cl, COs, S04) 

A fluorescent variety contains 0.023 

percent U 

Chemie der Erde, vol. 9, pp. 139-144, 

1934 

SEFSTROMITE 

A mixture of ilmenite with minor amounts 

of radioactive minerals 

Dana VII, vol. 1, p. 542 

TANTALITE 

(Fe, Mn)(Ta, Nb)20e 

Dana VII, vol. 1, pp. 780-787 

Ferrotantalite 

Synonym of tantalite 

Dana VII, vol. 1, pp. 780, 783 

Ildefonsite 

Synonym of tantalite 

Dana VII, vol. 1, p. 78o 

Manganotantalite 

Variety of tantalite 

Dana VII, vol. 1, pp. 780, 783-784 

Siderotantalite 

Synonym of tantalite 

Dana VII, vol. 1, p. 78o 
INDEX 

(A) indicates minerals containing uranium or thorium as major constituents. 

(B) indicates minerals containing minor amounts of uranium or thorium. 

(C) indicates minerals that should be tested for uranium and thorium 

content. 

(D) indicates minerals that are nonuranium- or nonthorium-bearing, but 

that have been reported to contain impurities or intergrowths of 

uranium, thorium, or rare-earth minerals. 

Abukuma.li te (B) ..•.......•..•••.••...•. 

Adami te (D) •..........•..•..•.••....•.• 

Adelpholite (A)= fergusonite ......••.. 

Aeschynite (A) see eschynite ••...•••... 

Aldanite (A) ...•..••.•.....•..•.••••.•• 

Allanite (B) ... -.............•..••••• ; .. 

Alvite (B) see zircon .•.......•...•.... 

Amba toarini te ( C ) •..............•...... 

Ampangabeite (A) ..................... .. 

Ancyli te (c) ••.••........•••••.••••.••• 

Andersonite (A) ••.....•••..•...•...•... 

Anglesobarite (B)= hokutolite ····~···· 

Annerodite (A) see samarskite ......... . 

Anthraxoli te (B) ..•.......•••••........ 

Arrhenite (A) see fergusonite ..•••..... 

Asphaltite (B) .....•....•••....•••...•• 

Auerlite _(A) see thorite .............. . 

Autunite (A) ......•........•..•.....•.. 

Azorite (B) see zircon ••..•..••••...•.. 

Baddeleyi te (D) ...•...•..•..••........• 

Bagrationite (B) see allanite •....•.••. 

Baierine (D) see baierite .....••....... 

Baierite (D)= columbite •....•......... 

Bariumphosphouranit (A) = uranocircite . 

Basseti te (A) ...•.....•.•.•........•.•• 

Bastnaesite (B) ...•...•.....•........•. 

Bayleyite (A) ....•..........•....•..... 

Bazzite (C) .......•..•................• 

Beckelite (c) •.........•.........•.•... 

Becquerelite (A) ...................... . 

Befanamite (C)= thortveitite ........•• 

Beiyini te (C) ..........•.••.•••..•...•. 

Betafi te (A) ....•...•. _, .•...•....•...•• 

Beta -uranophane (A) ....•..•.• • •..•.•... 

Beta-uranopilite (A) = meta-uranopilite. 

Billietite (A) see becquerelite •...•••. 

Blomstrandine (A)= priorite •••.••.••.. 

Blomstrandinite (A)= priorite .•..•.•.. 

Blomstrandite (A)= betafite .....•..•.. 

Bodenbenderite (D) ..•••..•..•..•......• 

Bodenite (B) see allanite ..•••.••...... 

Bragite (A)= fergusonite .•.......•.•.. 

Branneri te (A) ......•.........•......•• 

Brazilite (D) see baddeleyite .•.••.•••. 

Britholite (C) .•....•....•..•.....•.... 

Page 

12 

20 

4 

4 

2 

12 

16 

17 

2 

17 

2 

13 

8 

13 

4 

13 

9 

2 

16 

20 

12 

20 

20 

11 

2 

13 

2 

17 

17 

2 

19 

17 

2 

3 

6 

2 

7 

7 

2 

20 

12 

4 

3 

20 

17 

22 

Page 

Broggerite (A) see uraninite •.••.•...•. 10 

Broggite (B) see asphaltite •••••.••.••• 13 

Bucklandite (B)= allanite .••.•.••..•.. 12 

Buszite (C) .•.•..•..•.•••.....•.•.•.••• 17 

Calcio-ancylite (C) ....•..•••....•.••.• 18 

Calciocarnotite (A)= tyuyamunite •..•.. 10 

Calciosamarskite (A) .......••...•••.••• 3 

Calciotantalite (B) see microlite ...•.. 14 

Calciothorite (A) see thorite •..•••.•.• 9 

Calciouraconite (A) see uraconite •.••.. 10 

Calciovolborthite (B) see volborthite .. 16 

Calcirimarsenuranit (A)= uranospinite .. 11 

Calciumphosphouranit (A)= autunite ••.• 2 

Caldasite (D) see baddeleyite •..•••..•• 20 

Calyptolite (B) see zircon .•..••.•••••• 17 

Cappeleni te (B) .........•.• ·• • • • . • . • . • • . 13 

Carbocer (C) ..•.. , .•••..•..••.•••.•..•• 18 

Carbonate-fluorapatite (B) ...•...•.•..• 13 

Carburan (B) see thucholite ••...•••..•. 15 

Carnotite (A) . . . . . . . . . . . . . . . . • . • . . . . . . . 3 

Caryocerite (B) see melanocerite ...•.•• 14 

Cenosite (c) .••....•..•....•........... 18 

Cerite (B) ...••....... ~ .••..•....•.•.•• 13 

Chalcolamprite (B)= pyrochlore .......• 14 

Chalcoli te (A) = torberni te ....••.•• ·. • • 10 

Chalkolith (A)= torbernite ........•.•. 10 

Chevkinite (B) see tscheffkinite .•.•... 15 

Chinglusui te (B) . . . . . . . . . • . . • . . . • . . • . . • 13 

Chinkolobwite (A)= sklodowskite ....... 9 

Chlopinite (A) see khlopinite ..•..•.... 5 

Chlorothorite (A)= thorogummite •.. ~ ... 6 

Churchi te ( C ) • • • • • • • • • • • • • • • • • • • • • • • • • • 18 

Clarkei te (A) . . . . . . . • . . . . • • • . • • . . . • • • . . 3 

Cleveite (A) see uraninite .........••.• 10 

Columbite (D) ......•..•...••.•......... 20 

Copper uranite (A)= torbernite .•.....• 10 

Coracite (A)= uraninite •..•.•..•...... 11 

Cordyli te (B) . . • . . . . • • . • . . . • • • . . • . • • • . • 13 

Corvusi te (D) . . • . . . . • • . • . • • • . • • . . . . . • • . 20 

Cryptolite (A)= monazite ..•.........•• 7 

Cuprosklodowskite (A) ..•...•.....••.•.. 3 

Cuprouranit (A)= torbernite ....•••.•.. 10 

Cuprozippei te (A) •....•.....••.•.••.... 12 

Curite (A) . . . . . . . . • . . • • . . . . • • . • . . • . . . • . 3 

Cyrtolite (B) see zircon .....•..•.••..• 17 
Page 

Dakeite (A)= schroeckingerite ...•..... 9 

David.i te (A) . . • • . • . . . . . . . . . . • . . . • . . . . . . 3 

De1orenzite (A) • . . . . . . . . . . . . . . . . • . . • . . . 3 

Dewindti te (A) . . . . . • . . . . . . . . • . • . . . . . • . . 3 

Dianite (D)= co1umbite .............•.• 20 

Diderichite (A) . . . . . . . . . • . • . . . • . . . . . • • • 4 

Djalmaite (A) . . . . • • . . . . • . . . . • . • . . . • • . . . 4 

Droogmansite (A) . . . . . • . • . • . • • . . . . . . . . . . 4 

Dumontite (A) ..... ~.................... 4 

Dysana1yte (C)= perovskite .....•....•• 19 

Edwardsite (A)= monazite •..••.....•... 7 

E1iasite (A)= gummite ..•.•..•....•.... 5 

E11sworthite (B) see pyroch1ore .•.•.... 14 

Ena1ite (A) see thorite .....•.......... 9 

Endeio1ite (B) see pyroch1ore .......••. 15 

Epiianthini te (A) . . . . . • . • • . . . . • • . . . . . . . 4 

Erdmanni te ( C ) • • . . . . . . . . . . . . . • • . . • . . . . • 18 

Eremite (A)= monazite ...•..••.••.....• 7 

Erikite (c) ........................•..• 18 

Eschwegite (A) see po1ycrase •.•.•...••. 7 

Eschynite (A) • . . . . . . . • • . . . . . . . . . . . • . • . . 4 

Euco1ite (C) see eudia1yte •....••..•... 18 

Eucrasite (A) see thorite .•••.••..••... 9 

Eudia1yte ( C ) . . . . • . . . • . • . . . . . . . • . • . . • . • 18 

Euxenite (A) . . • . . . . . . • . . . • . . . • . • • • . . . • • 4 

Evansite (D) ........•...•.•......•..••• 20 

Eytlandite (A)= samarskite ............ 8 

Ferghanite (A) . . . • . . . . • . • • . . . • . . . . • . . . . 4 

Fergusonite (A) . . . . . . . . • . . . . • . . . • . • • . . . 4 

Ferroco1umbite (D) co1umbite •.••...•• 20 

Ferro-ilmenite (D)= co1umbite ...•...•. 20 

Ferrotanta1ite (D)= tanta1ite ...•....• 21 

Ferrothorite (A) see thorite ...•......• 9 

Fersmi te (B) . . • • . • • . . . . . • • . . . • • . . . . • • . . 13 

Fischeri te (D) . . . . . . . . . • • . • . • • • • • . • • • . . 21 

F1orenci te (C) • . . . • . . . . . . . . . • • • . . . . • • . . 18 

F1uoceri te ( C ) • • • • • • • • • • • • • • • • • • • • • • • • • 18 

F1uori te (D) • . . . . • . • • . • . . . . . . • • . . . • . . . • 21 

F1utherite (A)= 1iebigite ..•....•..... 6 

Formanite (A) . . . . . . . . . • . • . . • • . . . . . . . . . • 5 

Fourmarierite (A) • . . . . • • • • • • . • • • . . . . . • • 5 

Freya1ite (A) see thorite •....•••.•.••. 9 

Fritzcheite (A) . . . . . • • • • • • . . • . . • • . . . . • • 5 

Gado1ini te ( C ) . • . • • • . . . • . • . • • • . . . . . • . . . 18 

Gi1pinite (A)= johannite •.....•..••... 5 

Greenlandite (D)= co1umbite •.••.••••.. 20 

Guadarramite (A) see davidite ...••....• 3 

Gummite (A) .•...•. :. • . . . . • • . • . • . • • . . . . • 5 

Haddamite (B)= micro1ite •......•••.••. 14 

Hagata1ite (B)= zircon .•....••...•..•. 17 

Hatchetto1ite (B) see pyroch1ore ..•...• 15 

23 

Page 

He11andite (C) ...•....•...•..••..•..•.. 18 

Hermanno1ite (D)= co1umbite •.......••• 20 

Hielmite (B) •..................••..•••. 13 

Hjelmite (B) see hie1mite •..•.••...•... 13 

H1opinite (A) see khopinite ...••••..... 5 

Hoegtveitite (B~ see zircon ••.....•..•. 17 

Hokuto1i te (B) • . . . . . . . . . . • . . • . . . . • • . • . • 13 

Huttonite (A) . . . . . . . . . . . • . • . • . • • • • • . . • • 5 

Hyb1ite (A) see thorite .•..•••.••.••••• 10 

Hydroeuxenite (A)= ampangabeite ....••• 2 

Hydrosamarskite (A) see samarskite 8 

Hydrothorite (A) see mackintoshite ..•.. 6 

Ianthini te (A) • . . . • • . . . . . . . . . . . . . . • • • . . 5 

I1defonsite (D)= tanta1ite ......••.••• 21 

Ishikawai te (A) . . . • . . . . . • . • . • • • . . . . • . . . 5 

Jachymovite (A)= cuprosk1odowskite .... 3 

Johanni te (A) . . . . . . . . . . • • . . . • . . . • • • . . . . 5 

Johnstrupi te (B) ...•..•.....••....... ; . 14 

Kainosite (C) see cenosite ....•...••... 18 

Kalkowski te (D) . . . . . . • . . • • • • . • • • • • . . . . . 21 

Kararfveite (A) see monazite •.•••.•.•.• 7 

Kaso1ite (A) . . • . . . • . . . . . • . . . . • . . . • • . • . • 5 

Katangi te (D) . . . . . . . . • . • • . . • • • . . . • . . . . • 21 

Keilhauite (C) see sphene •.•••.•••.•.•• 19 

Kh1opini te (A) . . • . • . . . • • . . . • . • . . . . . . • • . 5 

Knopite (C) •.•••••••••••••••••••••••••• 18 

Koche1ite (A) = fergusonite . . . . . • . • . . . . 4 · Ko1m (B) .......•.•.••....••..•••...•.•• 14 

Kondrikite (C) ••.........•........•..•. 18 

Kondrikovite (C) see kondrikite ...•..•. 18 

Koppite (B)= pyroch1ore •.....•••.••••. 15 

Kupferarsenuranit (A)= zeunerite .•..•• 6 

Kupferphosphouranit (A)= torbernfte .•• 10 

Lambertite (A)= uranophane •...•••.•.•• 11 

Lanthanite (C) ......•.••...•.....••••.. 18 

Lessingi te (C) . . • . . . . . • . . • . . . . . • • . . • . • . 18 

Liebigite (A) . • • . . • . . • • • . • • . . • • . . . . • • • • 5 

Loparite (C) .....•..•••...•••••.••..... 18 

Loranski te ( C ) • • . . . . • . • . . • . . • • • • . • . • • • . 18 

Lovchorrite (B) ......................... 14 

Lovozeri te (B) • • . . • • • . . • • • . . • • . • • • • • . . • 14 

Lyndochite (A) see euxenite •....•.••.•• 4 

Mackintoshite (A) .. . . .. . . .. • . . .. .. • • • • • 6 

Malacon (B) see zircon •..••.•••.•..•••• 17 

Magnesium-phosphoruranite (A) = sa1~eite 8 

Mai t1andi te (A) • . . . . • • . • • • • . • • • • • • • . • . • 6 

Manganoco1umbite (D) see co1umbite •.••• 20 

Manganotanta11te (D) see tanta11te •..•• 21 

Marignacite (B)= pyroch1ore •.•.•••••.• 15 

Masuyite (A) • • . • . • • . • • • • • . • • • . . . • • • • • • • 6 
Page 

Medjidite (A) . . . . .. . • . . . . . • . . . • . . . . • . . . 6 

Melanoceri te (B) . . • . . . . . . . . . • . . . . . . . . .. 14 

Mendeleyevite (A) see betafite ......... 2 

Mengite (A)= monazite .......••.•...... 7 

Meta-autunite I (A) see autunite ....... 2 

Meta-autunite II (A) see autunite •..... 2 

Metachalcolite (A)= metatorbernite .•.. 6 

Metaloparite (C) .........••...•. -· ...... 18 

Metasimpsonite (B) see microlite ....... 14 

Metatorbernite (A) . • . . . . . . . . . . . . . . . . . . . 6 

Meta-uranopilite (A) ................... 6 

Metazeunerite (A) . . . • . . . . . . . . . . . . . . . . . . 6 

Microli te (B) . . . . . • • • . . . . . . . • . . . . . . . . . . 14 

Monazite (A) . . . . • • . . . . . . • . . . . . . . . . . • • . . 7 

Monazitoid (A)= monazite .............. 7 

Mosandrite (B) .••.•.•.................. 14 

Muromontite (B) see allanite .•.....•.•. 12 

Naegite (B) see zircon •............•..• 17 

Nagatelite (B) see allanite ............ 12 

Nasturan (A)= pitchblende ..••.•.•...•. ll 

Neotantalite (B) see microlite ......... 14 

Nicolayite (A)= thorogummite .......... 6 

Nivenite (A) see uraninite ......•...... ll 

Nohlite (A) . . . . • . • . . . . . . . . . . • . . • . . . . . . . 7 

Novaceki te (A) . . . • . . . . • . . . . . . . . . . . . . . . . 7 

Nuevite (A)= samarskite ............•.• 8 

Nuolaite (B) see wiikite ...........•... 16 

Oborite (C) .....•.........•............ 19 

Oerstedite (B) see zircon ......•....... 17 

Oliveiraite (A) see euxenite ........... 4 

Opal (D) ........•.•..................•. 21 

Orangite (A)= thorite .......•......... 10 

Orthite (B)= allanite ................. 12 

Oyamalite (B) see zircon ............••. 17 

Paraschoepite .(A) = schoepite . . . . . . . . • . 9 

Parisite (C) ..•.............•..•....... 19 

Parsonsite (A) . . .. . . . . . .. . . . • . . . . .. . . . . 7 

Perovski te ( C ) • . . • • . . . . . . . . . • . . . . . . . • . . 19 

Perrierite (B) see tscheffkinite ....... 16 

Phosphocerite (A)= monazite .......•... 7 

Phosphuranylite (A) . . • • . . . . • . . . . . • . • . . . 7 

Pilbarite (A) see mackintoshite ......•. 6 

Piseki te (B) • . . . . . • . . • • . . . . . . . • • . . . . . . . 14 

Pitchblende (A) see uraninite .......... ll 

Pittinite (A)= gummite ••..........•... 5 

Plumboniobite (A) see samarskite •...... 8 

Polycrase (A) . . . • . . • • • . . . • . . . • . . . . . . . . • 7 

Polymignyte (A) . . • • . • . . . . . . • • • • . . • . . . . . 7 

Priori te (A) • . . . . . . . • . . . . . . . • • • . . • • . . • . 7 

Pyrochlore (B) . . . . . . • • . . . • . . . . . . . . . . . . . 14 

Pyromorphite (D) ...•.•................. 21 

Pyrrhite (B)= pyrochlore ••.......•.... 15 

24 

Page 

Radioactive mineral, Mozambique (A) see 

davidite . . . . . . • . . • • . . . • . . . • . . . . . . . • . . 3 

Randite (A) see beta-uranophane ...•...• 3 

Rauvite (A) . . . . . . . . . . . . . • . . . . . . . . . . . . • • 8 

Renardite (A) . . • . . . . . . . • • . . • . • . • • . . • . . . 8 

Retzian ( C ) . . . . . . . . • . . . . • • . • • . • • • • . . • . . 19 

Rhabdophane (C) •.........•.•...•..•..•. 19 

Rhabdophanite (C) see rhabdophane .•.••. 19 

Richetite (A) . . . . . . . • . . . • • • . • • . . . . . • • . . 8 

Rinki te (B) • . • . . . . . . • . . . • . . . . • . • . . . • . . . 15 

Rinkolite (B) ...•......••..•...•....... 15 

Risorite (A)= fergusonite ..•.•.•..•.•• 4 

Rogersite (A) see samarskite •..•......• 8 

Rowlandi te (B) . . . . . . . . . . • . . • . . . • . . . • • . • 15 

Rutherfordine (A) . • . . . • . . . . . . • • • . . • . . • • 8 

Rutherfordite (A) see fergusonite ••...• 4 

Sabugalite (A) . . . • . . . . . . . . • . . • . . . . . • • . . 8 

Saleeite (A) . • . . • • . . . . . • . . . . . • . . • . • . . . • 8 

Samarski te (A) . . . . • . . . . • . . • . • . . • . . . • . . • 8 

Samiresite (A) see betafite ..•.•••••.•. 3 

Scapoli te (D) . . . . . • . • • . . . • . . . • . . . • • • . • . 21 

Scheteligi te (C) • . . . . . . . . . • . . • • . . • • . . • . 19 

Schoepite (A) • . • • . . . . . . . • . . . . • • • . • . . . • . 8 

Schroeckingeri te (A) • • . . . . . . . . . • . . • . . . . 9 

Scovillite (C)= rhabdophane •.•...••.•. 19 

Sefstromi te (D) • . . . • . . . . • . . . • • . • . • • . . . . 21 

Sengieri te (A) • . . . • . • . . . . . • . • . . . • • . • . . . 9 

Sharpi te (A) .........•..•. ·. . . . . . . . • . • • . 9 

Siderotantalite (D)= tantalite ......•. 21 

Sipylite (A)= fergusonite ..•...•...•.. 5 

Sklodowski te (A) . . . . . . . • • . . • • • . . . . . • . . . 9 

Soddyite (A) • . . . • . • . . . • . . . . . • . . • • . • • . . • 9 

Sphene (C) •....••.••...•.••..•....••.•. 19 

Stasite (A)= dewindtite •••.•......•... 3 

Steenstrupine (B) • • • . • • • • . • • • . • • . . . . • . • 15 

Studtite (A) ....•.•..•••.••.....•.••.. • 9 

Swartzite (A) . . . . . • • . . • . . . • • • . . . • . . . • • • 9 

Synchisite (c) ..•.••......•••..•.•.•..• 19 

Tachyaphaltite (B) see zircon ..•..•.••. 17 

Tangeite (B) see volborthite ..•.••...•. 16 

Tangu~ite (B) see volborthite .•.•..•••• 16 

Tan tali te (D) . . • . • • . • • • • . • . • • . • • • • . • • • • 21 

Tanteuxenite (A) see euxenite .•.....••• 4 

Tengerite (B)' ...•......••...••..••....• 15 

Thaleni te (B) . . . . . . • • . . • • • . . • . . . • . . . • • . 15 

Thoriani te (A) • • . . . . . . . . . . . • . . . • . • . . • • . 9 

Thori te (A) •·..•...•••.•.•••.•...•.•••.• 9 

Thorogummite (A) see mackintoshite ..•.• 6 

Thorotungstite (C) see yttrotungstite .• 19 

Thortvei ti te ( C ) . . . . • . . • • • • . . . . . . • . . • • • 19 

Thucholi te (B) . • • . • • • . • • • • • • • • • . • • • • . . • 15 

Titanite (C)= sphene •..••..••.••...••• 19 

Titanoniobite (A) see euxenite •..•..... 4 
Page 

Titanothucholite (B) see thucholite 15 

Toddite (D) see columbite .......•.••••. 20 

Toernebohmite (C) ••••••.••••••••••.••.• 19 

Torberni te (A) • • • • • • • • • • • • • • • • . • • • • • • • • 10 

Tri tomi te (B·) • • • • • • • • . • • • • • • • • • • • • • . • • • 15 

Troegeri te (A) • • • • • • • • . . • • • • • • • • • • • • • • • 10 

Tscheffkini te (B) • • . • . • • • . • • • • • • • • • • • • • 15 

Turanite (B) •.•••••••.••••••••••••..••• 16 

Turnerite (A)= monazite •....•.•....... 7 

Tyrite (A)= fergusonite ......•.•.....• 5 

Tysonite (C)= fluocerite •...•••••.••.• 18 

Tyuyamunite (A) •••••••••••••••••••••••• 10 

Ulrichite (A)= uraninite .•....•....•.• 11 

Uraconi te (A) • . • • . • • • • • • . • • • • . • . • • • . . . • 10 

Uralorthite (B)= allanite •.•..•.•..... 13 

Uraninite (A) •.••••••••.••••••••••••.•• 10 

Uranite (A) see torbernite •..••.••..... 10 

Uranochalci te (A) • • • • • • • • • • • • • . • • • • • • • • 11 

Uranocher (A) • • • • • • • • • • . • • • • • • • • • • • • • • • 11 

. Uranocircite (A) ••••••••••••••••••••••• 11 

Uranolepidite (A)= vandenbrandeite .... 12 

Uranoniobite (A)= uraninite .•......... 11 

Uranopbane (A) . . . . . . . . . . . . . . . . . . . . . . . . . 11 

Uranopi1i te (A) • • • . • • • • . . • • • • • • • • • • . • • • 11 

Uranopissite (A)= uraninite •......•.•• 11 

Uranospa thi te (A) • • • • • • • • • • • • • • . • • • • • • • 11 

Uranosphaerite (A) ..................... 11 

Uranospini te (A) • • • • • • • • • • • • • • • • • • • • • • • 11 

Uranotanta1ite \A) = samarskite •.•.•..• 8 

Uranotha1lite (A)= liebigite •....•..•• 5 

Uranothorite (A) see thorite ..•••...•.. 10 

Uranotil (A)= uranophane .•.••••••....• 11 

Urdite (A)= monazite ••.....•....••..•• 7 

Uvani te (A) • • • • • • • • • • • • • • • • • • • • • • • • • • • • 11 

Uzbekite (B)= volborthite ........•••. ~ 16 

Vandenbrandeite (A) •••••••••••••••••••• 12 

25 

Vanden~iesscheite• (A) •••••.••••••••••• 12 

Vanoxite (B) ••••••••••.•••.•••••••••••. 16 

Vietinghofite (A) see samarskite ••..•.• 8 

Vog1iani te (A) • • • . • . • • . • • • • • • • • • • . . • • • • 12 

Vog1ite (A) •••••••••••••••••••••••••••• 12 

Volborthi te (B) • . • . • . . . • • . • . • . • • • • . • • . • 16 

Vudyavrite (B) see lovchorrite •.•...... 14 

Wa1purgite (A) ••••••••••••••••••••••••• 12 

Wasite (B) see allanite ...•.•••.••.••.. 13 

Weibyite (C) see ancylite •••.•.••••.••• 17 

Weinschenkite (C) •••••••••••••••••••••• 19 

Wiiki te (B) • • • . . • • • . • • • • • . • • • • • • • • • • • • • 16 

Xanthorite (B) see allanite •.••..•..•.• 13 

Xenotime (:e) • • • • • • • • • • • • • • • • . • • • • • • • • • • 16 

Yamaguchi1ite (B) see zircon .....•..••• 17 

Yamaguti1ite (B) see zircon ••.••••••..• 17 

Yttriali te (B) • • . • . • • • . • . • • • • • • • . • • • • • • 16 

Yttrium orthi te (B) see yttro-orthi te .. r 13 

Yttrocerite (D) see fluorite •.•.•••••.. 21 

Yttrocolumbite (B) see yttrotanta1ite •. 16 

Yttrocrasite (B) .•.••••••.••••••••••••• 16 

Yttrof1uorite (D) see fluorite ...•.•••• 21 

Yttrogummite (A) see gummite ••.••.••..• 5 

Yttro-ilmenite (A)= samarskite •..•.••. 8 

Yttro-orthite (B) see allanite .••..•.•• 13 

Yttroparisite (c) see parisite •..•••••• 19 

Yttrotantalite (B) •.••••••••••••.•••••• 16 

Yttrotitanite (C)= keilhauite .•.•••••• 19 

Yttrotungsti te (C) .. • • • .. • .. .. .. • .. • .. • 19 

Zeuneri te (A) see metazeuneri te • . . • • •. . • 6 

Zippeite (A) ••••••••••••••••••••••••••• 1"2 

Zircon (B) • • . • • . . • . . • • • • • • • • • • • • • • • • • • • 16 

Zirkeli te (B) • . • • • • • • • • . • • • • • • • • • • • • • • • 17 

Zirkite (D) see badde1eyite •••.••...••• 20 

INT.-DUP. SEC., WASH., D.c.nnt