GEOLOGICAL SURVEY CIRCULAR 74 

April 1950 

A GLOSSARY OF URANIUMAND THORIUM-BEARING MINERALS 

By 

Judith Weiss Frondel 

and 

Michael F1eischer 
UNITED STATES DEPARTMENT OF THE INTERIOR 

Oscar L. Chapman, Secretary 

GEOLOGICAL SURVEY 

W. E. Wrather, Director 

WASHINGTON. D. C. 

Free on application to the Director, Geological Survey, Washington 25, D. C. 
A GLOSSAR-Y OF URANIUMAND THORIUM-BEARING MINERALS 

By 

Judith Weiss Fronde! 

and 

Michael Fleischer 

CONTENTS 

Introduction ••oooooooooo••••••oo•-•oo•••oo••••••••••oooo•oo••oooooo••oo•oo•oo•oooo••oooooooo•oo• 1 

.A. Uranium and thorium minerals oooo oo oo ......................... oo .... oo oo oo oo oo oooooo oo 2 

B. Minerals with minor amounts of uranium and thorium 000000000000000000000000.... 10 

C. Minerals that should be tested for uranium and thorium ...... 00 .. 00000000000000 14 

D. Minerals that are non-uranium- or non-thoriumbearing, but that have been reported to 

contain impurities or intergrowths of uranium, 

thorium, or rare-earth minerals oooooo•oo ............ oo ... oo .. oooooo'""""oo" .. 0000 16 

Index oo ...... oooooo•oo••••oo•oooo•oo•oooo•·~· .. •oooo•oooooooooooo•oooooo•oooooo•oooo••oo•••oooo••• 18 

INTRODUCTION 

The U. S. ·Geological Survey has for some time been making a systematic survey of da~ 

pertaining to uranium and thorium minerals and to those minerals that contain trace1 or more of 

uranium and thorium. This survey consists of collecting authoritative chemical, optical, and 

X-ray diffraction data from the literature and of adding to these data, where inadequate, by work 

in the laboratory. The results will he reported from time to time, and the authors welcome information on additional data and names. · 

The first of a series of reports on these results is this· glossary of uraniuui- and thoriumbearing minerals. This project is part of the work on radioactive materials being done by the 

Geological Survey on behalf of the Atomic Energy Commission. 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 mftium or thorium content; and D, minerals that are non· 

uranium- or non-thorium-bearing, but that have. been reported . to contain impurities or inter· 

growths. of uranium, thorium, or rare-earth minerals. Uranium is more widespread in its natural 

occurrence than generally has been supposed, and it is possible ·that the third group of minerals 

~ill give valuable information upon reinvestigation. 

Such a glossary has long been needed to al,leviate ·the confusion that obscures the nomen· 

clature 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 (e.g., in group A, ura119chalcite and voglianite). Structural formulas are given for 

most of the minerals. Oxide formulas are given where no good structural data are available. 

The glossary summarizes the state of our knowledge, as of March 1950, concerning the validity 

of all the included species. Identities and woup relations are indicated. It might he well to 

relegate to obscurity the many synonyms existing in the literature. 

In the index there are 325 entries that represent 81 species containing uranium and thorium 

as major constituents, 39 specie$ containing small amoURts of uranium and thorium, 29 species 

that should be tested for uranium and thorium, and 13 species that have been reported to contain 

impurities or intergrowths of uranium, thorium, or rare-earth minerals. These four categories are 

shown in the index by reference letters. 

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 editioJus, respectively, 

of Dana's System of Mineralogy. 

The authors wish to thank Dr. Clifford Fronde I of the Deparbnent of Mineralogy .and Petrography, Harvard University, and Professor Esper S. Larsen, Jr., of the U. S. Geological Survey, 

for their suggestions and critical reading of the DlEl{lUScript. 

1 
A •. URANIUM AND THORIUM MINERALS 

AMPANGABEITE 

(Y,Er, U,Ca, Th)2(Cb,Ta,Fe,Ti) 701 8? 

Validity of species is questionable;.may be 

an inhomogeneous alteration product. 

U = 17.1%, Th = 1.8%. 

Dana VII, pp. 806-807 

HyJroeuxenlte, a synonym of ampangabeite. 

Dana VII, p. 806, 

AHDERSONITE 

Na2Ca(U02)(C03 )s.6H20 

u :: 39.15% 

Milton,. C., U. S. Geol. Survey, personal 

communication. 

AUTUNITE 

Ca{U02)2(P04)2.8-12H20 

U = 49.7 to 56.2% 

Dana VI, pp. 857·858 

Calcouranite, a synonym of autunite. 

Meta-autunite, is the hydrate with 8H20 • 

BASSETITE 

Fe(U02)2{PO 4)2.8H20 

u:: 51% 

Mineralog. Mag., vol. 17, pp. 221-236, 1915 

Chemie der Erde, vol. 12, pp. 433-4501 1939-40. 

Fronde!, C., Harvard University, personal 

communication. 

BAYLEYITE 

Mg2(U02)(C03 ) 3 .18H20 

U = 27.8 to 29.2% .. 

Milton, C., U. S. Geol. Survey, personal 

communication. 

BECQUERELITE 

2U03 .3H20? 

u = 82.4% 

Dana VII, pp. 625-627. 

Blllletlte, a variety of becquerelite. 

Am~ Mh;teralogist, vol. 33, pp. 503·507, 1 ~8. 

2 

BETAFITE 

(U ,Ca){Cb, Ta, Ti 3 0 g.nH 20? 

U = 16.3 to 24.5%. 

Th = 1.0 to 1.1% 

Dana VII, pp. 803-805 

8/omstranJite, a synonym of betafite. 

u ~ 16.3% 

Dana VII, pp. 803-805. 

MenJeleyevite, titanian betafite. 

u:: 13.7%· 

Dana VII, pp. 803·804. 

Samlresite, a synonym of betafite. 

u ~ 18.7% 

iDf!na VII, pp. 803-805. 

BRANNERITE 

(U,Ca,Fe, Y, Th) 3 Ti 501 e? 

U = 39.3%, Th = 3.6% 

Dana VU, pp. 774-775. 

CALC/OSAMARSKITE 

(Ca, Y,etc.,U,Th) 3(Cb,Ta,Fe,Ti,Sn)s{h 6 

and 

(Ca,Y,etc.,U,Th,Zr)3 {Cb,Ta,Fe,Ti)s01e 

U = 9.4 to 11.3% 

Th = 1.9 to 2.9% 

Dana VII, p. 772 

CARNOTITE 

K(U02)(V04). ~-l~H20 

U = 56.3 to 58.4% 

Dana VI, Appendix I, pp. 13-14 

CLARKEITE 

U03.nH20? 

u =!= 73.7% 

Dana V~, pp. 624-625 

CUPROSKLODOWSKITE 

Cu(U02 )2Si20 ,.6H 20 

u = 58.6% 

Am. Mineralogist, vol. 19, p. 235, 1934 
Jachymovite = cuprosklodow~kite 

Minera~og. Abs., vol. 6, p. 345, 1936 

Uranochalcife .. a hydrous copper, uranium, and 

calciuQl sulfate of questionable validity. 

Voglianite - A hydrous calcium and uranium 

sulfate of questionable validity. ·The type 

material of Vogl for .uranochalcite and 

voglianite has not been found. Present 

museum specimens bearing these names 

have proved to be cuprosklodowskite; 

V ogl, J. F., Gangverh1tltnisse and Mineralreichtum Joachimthals, Teplitz, 1857 

' v ~ Ceske Spol. Nauk Vestnik, article VII, 

pp. 1-36, 1935 

CURITE 

Pb2Us011·4H20? 

U = 66.2 to 70.1% 

Dana VII, pp. 629-631 

DELOREHZITE 

(Y, U,Fe 2)(Ti,Sn)30 8 ? 

u = 8.7% 

Dana VII, p. 808 

DEWIHDTITE 

. Pb(U02)2(P04)2.3H20? 

u = 52.1% 

Am.,Mineralogist, vol. 7, p. 162, 1922 

Stasife = dewindite?-

Pb4U aP e043·nH20? 

Am. Mineralogist, vol. 7, pp. 196-197, 1922 

DIDERICHITE 

Contains uranium, water, and carbonate. 

Validity of species is questionable. 

Soc. beige geologie lull., vol. 70, 

pp. 212·225, 1947 

DJALMAITE 

(U,Ca,Pb)(Ta,Cb,Ti 0 8 .nH20 

May be tantalum equ valent of bettdite. May 

be microlite; Tav a, E., University of 

Brazil, personal c mmunication, Oct. 1949 

u = 10.4% 

Dana VII, p. 805 

3 

DROOGMAHSITE 

No chemical analysis has been made. May 

be related to sklodowskite. 

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

DUMOHTITE 

Pb2(U02)3(P04)202.5H20 

u = 51.0% 

Am. Mineralogist, vol. 10, p. 131, 1925 

EPIIAHTHIHITE 

yU03.xH20? 

No good chemical analysis has been made. 

An alteration product of ianthinite. 

Am. Mineralogist, vol. 32, pp. 344-350, 194 7 

ESCHYHITE 

(Ce,Ca,Fe?, Th)(Ti,Cb) 2 0 6 

Also aeschynite. In eschynite-priorite series. 

Th = 9.9 to 15.4% 

Dana VII, pp. 793-796 

EUXEHITE 

• (Y ,Ca,Ce, U, Th)(Cb, Ta,Ti)20 8 

In euxenite•polycrase series. 

U • 3.0 to 9.0% 

Th = up to 4.3% 

Dana VII, pp. 787·791 

LynJochite- variety of euxenite 

U = 0.6% , Th = 4.3% 

Dana VII, pp. 787, 789-791 

Tanteuxenite • variety of euxenite 

U = 3.0 to 3.8%, Th = tr. 

Dana VII, pp. 787, 789·790 

Eschwegite • AB20 8 

A • Y,Er,U,Th 

B • Cb,Ta,Ti,Fe 

U • 1.7%, Th = 0.5% 

May belong to euxenite•polycrase series. 

Dana VII, pp. 792·793 

TociJite -possibly a mixture of colwnbite 

and euxenite. 

:U • 9.8%, Th = 0.4% 

Dana VII, pp. 785-786 
FERGUSONITE 

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

In fergusonite-formanite series. 

U = 0.8 to 6.3% 

Th = 0.7 to 2.5% 

Dana VII, pp. 757-762. 

Ade/pholite :synonym of fergusonite? A 

poorly defmed substance, possibly an 

altered mossite. 

Dana VII, pp. 762, 778-779 

Arrhenite - an altered fergusonite 

Dana VII, p. 762 

Bragite - synonym of fergusonite 

u = 7.2% 

Dana VII, pp. 757, 759, 761 

Kochelite - synonym of fergusonite 

Dana VII, pp. 757, 761 

RISOrlfe . ''· - synonym o ff ergusonite 

U = 0.09%, Th = tr. 

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

R utherlord ite - an alterecl fergusonite 

Dana VII, pp .. 757, 761-762 

Sipylite- synonym of fergusonite 

U = 0.8 to 6.3% 

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

Tyrite - syn.onym of fergusonite 

Dana VII, pp. 757, 760·761 

FORMANITE 

(U, Th,Ca)(Ta,Cb, Ti)04 

In fergusonite-formanite series. 

U = 1.1%, Th = 1.1% 

Dana VII, PP· 758, 760, 762 

FOURMARIER ITE 

PhU4013•5H20? 

U = 70.1 to 70.8% 

Dana VII, pp. 628-629 

FRITZSCHEITE 

Mn(U02)2 [(P,V)04] 2.8H20? 

4 

No actual analysis is available. May 

he the manganese analogue of torhernite. 

Dana VI, p. 860 

GUMMITE 

U0 3 .nH20? 

Generic term for minerals occurring as 

alteration products of uraninite and 

n?t. otherwise identified. Group includes 

sthcates, phosphates, and oxides. 

U = 31.3 to 70.1% 

Th = up to 22.0% 

Dana VII, pp. 622-625 

E liasite - synonym of gurmite 

u = 57.2% 

Dana VII, pp. 622-624 

Pittinite - synonym of gummite 

Dana VII, pp. 622-624 

Yttrogummite - synonym of gummite 

Alteration product of yttrian uraninite. 

Dana VII, pp. 622-624 

HUTTOHITE 

ThSi04 

Monoclinic dimorph of thorite. 

Th = 67.4% 

U =·none 

Pabst, Adolf, University of California 

p~rsonal ~ommunication; in press A:O. 

Mmeralogtst. 

IAHTHIHITE 

2U02.7H20? 

u = 70.3% 

Dana VII, pp. 633-634 . 

ISHIKAWAITE 

(U,Fe, Y,etc.)(Ch, Ta)04 

u = 19.3% 

Dana VII, p. 766 

JOHAHHITE 

Cu(U02)2(S04)2(0H)2.6H20 

U = 55.3 to 61.1% 

Am. Mineralogist, vol. 11, pp. 1-5 1~6 ' 
Gilpinite = johannite 

Am. M~neralogist, vol. 11, pp. 1-5, 1926 

KASOLITE 

Pb(U02)Si04 .H20 

U = 43.6 to 44.5% 

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

1922 

KHLOPIHITE 

(Y,U4,Th) 3(Cb,Ta,Ti,Fe) 70 20? · . . Also chlopinite, hlopinite 

May be· related to euxenitepolycrase series. 

U = 7.2%, Th = 1.9% 

Dana VII, p. 792 

LIEBIGITE 

Ca2(U02)(COs) 3 .10H20? 

u = 34.3% 

Dana VI, p. 308 

Uranotltalllte -synonym of liebigite 

Frondel, C., Harvard University, personal · 

communication. 

F lutlaerlte - synonym of uranothallite 

Dana VI, p. 307 

MACI<IHTOSHITE 

(Th, U)Si04 .H20? 

U = 19.7%, Th = up to 39.9% 

Dana VI, appendix I, p.~ 

HyJrotlaorlte 

ThSi0 4 .4H20 

Alteration product of mackintoshite. 

U = 1.9%, Th = 50.7% 

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

Pilharife 

U03.PbO. Th02.2SiO 2.-iH20 

Alteration product of mackintoshite; 

close to thorogummite. 

U = 24.4%, Th = 27.4% 

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

1928 

MAITLAHDITE 

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

5 

U = 31.2%; Th = 22.7% 

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

Hicolayite- alteration product of maitlandite; close to thorogummite. 

U = 33.7%, Th = 21.4% 

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

MASUYITE 

Hydrated lead uranium oxide. 

Validity of. species is questionable. 

Soc. beige g~ologie Bull., vol. 70, 

pp. 212-225, 1947 

MEDJIDITE 

Sulfate of uranium and calcium. 

ValiditY· of ~pecies is questionable. 

Dana VI, p. 978 

MOHAZITE 

Essentially (Ce,La,Nd,Pr)P04 containing 

Th02 and Si0 2 · 

Th = 8% commonly; but ue_ to 26% is 

reported, Davidson, C. F., Geol. Survey 

Great Britain, personal ·communication. 

Dana VI, pp. 749-752 

Cryptolite - synonym of monazite 

Dana VI, pp. 749, 752 

Eclwartlsite- synonym of monazite 

Dana VI, p. 749 

E remlte - synonym of monazite 

Dana VI, pp. 749, 752 

Klrarfveite - impure monazite 

Dana VI, p. 752 

Menglte- synonym of monazite 

Dana VI, p. 749 

Monazitoicl - synonym of monazi~e 

Dana VI, p. 749 

Plaosplaocerlte- synonym of monazite 

Dana VI, p. 749 

Tumerlte- synonym of monazite 

Dana VI.' PP· 749, 751·752 

Urtllte ·synonym of monazite 

Dana VI, pp. 749, 752 
NOH LITE 

(Ca,Mg,Fe, Y ,etc., U) 2(Ch,Zr ,Fe 3) 30 10 

Validity of species is questionable. 

u = 13.0% 

Dana VII, p. 772 

PARASCHOE PITE 

uo3.2H20? 

u = 80.5% 

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

1947 

PARSOHSITE 

Ph 2(UO 2 )(PO 4 ) 2 .2H 20 

u = 26.8% 

Am. Mineralogist, vol. 8, p. 150, 1923 

PHOSPHURAHYLITE 

A lead, calcium, uranium phosphate. 

u = 57.3% 

Frondel, C., Harvard University, personal 

communication 

POLYCRASE 

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

In euxenite-polycrase series. 

U = 5.5 to 12.4% 

Th = up to 4.7% 

Dana VII, pp. 787-791 

POLYMIGHYTE 

A(Cb,Ti,Ta)0 4 

A = Ca,Fe 2 ,Y,Zr,Th 

Th = 3.4% 

Dana VII, pp. 764-766 

PR/ORITE 

(Y,Er,Ca,Fe 2,Th)(Ti,Cb)20e 

In eschynite-priorite series. 

U = 0.4 to 3.4% 

Th =0.5 to 14.9% 

Dana VII, pp. 793-796 

BlomstranJine - synonym of priorite 

Also, hlomstrandinite 

Dana VII, pp. 793-796 6 

RAUVITE 

Ca0.2U03.6V 20 5 .20H20 

u = 21.4% 

Am. Mineralogist, vol. 8, p. 187, 1923 

U. S. Geol. Survey Bull. 750, pp. 68-70, 1935 

REHARDITE 

Ph(U02) 4(P0 4)2(0H) 4 • 7H20 

u = 58.5% 

Am. Mineralogist, vol. 14, p. 244, 1929 

RICHETITE 

Contains Ph and U. 

Validity of species is questionable. 

Soc. beige giologie Bull., vol. 70, 

pp. 212-225, 1947 

RUTHERFORD/HE 

U02C03? 

Validity of species is questionable. 

u = 72.1% 

Mineralog. Mag., vol. 14, p. 409, 1907 

, 

SALEEITE 

Mg(U02)2(P04 )2.8H20 

u = 58.4% 

Am. Mineralogist, vol. 19, p. 36, 1934 

SAMARSI<ITE 

('X ,Er, U ,Ca,F e, Th)(C b, Ta) 20 e 

U = 8.4 to 16.1% 

Th = up to 3.7% 

Dana VII, pp. 797-800 

Anne..SJite - mixture of samarskite and 

parallel growths of columbite. 

Dana VII, pp. 797, 799 

EytlanJite - synonym of samarskite 

Da~a VII, p. 797 

HyJrosamarslc.ite - an altered samarskite 

Dana VII, pp. 799-800 

Plumboniobite- a columbate of Y,U,Pb,Fe,etc. 

May be a plumbian variety of samarskite. 

Dana VII, p. 800 

./~ogersite - synonym of samarskite 

Dana VII, p. 800 
Uranotantalite- synonym of samarskite 

Dana VII, p. 797 

V ietingholite - synonym of samarskite 

Dana VII,. pp. 800-801 

Yttro-ilmenite -synonym of samarskite 

Dana VII, p. 797 

SCHOEPITE 

4U03 .9H20? 

u = 79.0% 

Am. Mineralogist, vol. 8, pp. 67-69, 1923 

SCHROECKI.HGERITE 

CaaNaU02(COa}a(S04}F .10H20 

u = 29.0% 

Am. Mineralogist, vol. 33, pp. 152-157, 1948 

Dalceite- synonym of schroeckingerite 

SEHGIERITE 

Cu2(U02}2(V04}20.10H20? 

u = 47.2% 

Am. Mineralogist, vol. 34, pp. 109-120, 194'9 

SHARPITE 

6U03 .5C02.8H20? 

Composition· needs to be checked. 

u = 73.1% 

Am. Mineralogist, vol. 24, p. 658, 1939 

SKLODOWSKITE 

Mg(U02}2Si 20 7• 7H20 

u = 58.4% 

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

Chinlcolobwite -synonym of sklodowskite 

Am. Mineralogist, vol. 9, p. 156, 1924 

SODDY/TE 

5U03 .2Si02.6H20? 

u = 77.0% 

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

STUDTITE 

A hydrated carbonate of U and Pb. Validity 

of species is questionable. 

Soc. beige geologie Bull., vol. 70, pp. 212-225 

1947 

7 

SWARTZITE 

CaMgU02(C03 } 3 .12H20 

u = 33.6% 

Milton, C., U.S. Geol. Survey, personal 

communication 

THORIAHITE 

(Th,U}02 

Forms series with uraninite 

U = 15.9 to 39.0% 

Th = 33.7 to 81.5% 

Dana VII, pp. 620-622 

Uranothorionite = uranium-rich member of 

series 

THORITE 

ThSi04 

U =up to 9.0% 

Th = 25.2 to 62.7% 

Dana VI, pp. 488-489 

Auerlite- phosphatian variety of thorite 

Th = 60.7 to 61.5% 

Dana VI, pp. 488-490 

C alciotltorite - variety of thorite 

Th = 52.3% 

Dana· VI, p. 489 

Enallte- uranoan thorite 

U = 9.4%, Th = 25.4% 

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

Eucrasite- variety of thorite 

Th = 31.6% 

Dana VI, p. 489 

Ferrothorihf - a ferrian thorite 

U = 2.4%, Th = 54.0% 

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

Freyalite - variety of thorite 

Th = 25.2% 

Dana VI, p. 489 

Hybl ite - (both alpha and beta} - hydrous 

basic sulfo-silicate of Th, with minor 

.U, Fe, and Ph. An alteration product 

of thorite. 

Am. Mineralogist, vol. 12, pp. 368-372, 1927 
Orangite- synonym of thorite · 

U -= 1.0%, Th = 62.7% 

Dana VI, pp. 488-489 

Uranothor·ife - uranoan thorite 

U = 7.4 to 13.9% 

Th = 38.2 to 42.3% 

Dana VI, pp. 488-489 

THOROGUMMITE 

(Th,U)Si04.6H20? 

Compare pilharite and nicolayite, p. 14. 

U = 20.2%, Th = 36.3% 

Dana VI, p. 893 

Chlorothorile- synonym of thorogummite 

Dana VI, p. 893 

THOROTUHGSTITE 

3W03 .Th02.4H20? 

Th = 14.0% 

Am. Mineralogist, vol. 13, p. 159, 1928 

TORBERHITE 

C u(UO 2) 2(PO ~) 2·8-12H 20 

U = 51.2 to 56.0% 

Dana VI, pp. 856-857 

Chalcolite -synonym of torhemite 

C upro·uranite - synonym of torhernite 

Metachalcolite- synonym of metatorhernite 

Metatorbernite 

Cu(U02) 2(P04)2•8H20 

u =56% 

Mineralog. Mag., vol. 17, pp. 326-339, 1916 

Uranite = torhernite-autunite group 

Dana VI, pp. 856-857 

Uranophyllite • synonym of torhemite 

, 

TROGERITE 

(U02)s(As04 )2.12H20 

u = 57.5% 

Dana VI, pp. 859-860 

TYUY AMUHITE 

Ca(U02)2(V04)2.nH20 

8 

n = 9-10, hut may he down to 4 

U = 47.1 to 59.0% 

Am. Mineralogist, vol. 12, p. 382, 1927 

Calciocarnotite- synonym of tyuyamunite 

Ferghanite- probably identical with tyuyamunite, 

hut original descriptions indicate minerals 

may he different. 

Fronde!, C., Harvard University, personal 

communication 

URACOHITE 

Hydrous sulfate of U and Cu. 

u = 61.0% 

Dana VI, p. 978 

Uranocher - synonym of uraconite 

URAHIHITE 

U02 (between U02 and U3 08t with U4 

predominant) 

U = 46.4 to 97.6% 

Th = up to 12.2% 

Dana VII, pp. 611-620 

Brllggerite 

Thorian uraninite (U, Th)02 

u = 68.3%, Th = 5.3% 

Dana VII, pp. 611-614 

Cleveite- uraninite with rare earths 

U = 57 .Q%, Th = 4.0% 

Dana VII, pp. 611, 613-614 

Coraclte - synonym of uraninite 

Dana VII, pp. 611, 615, 617 

Hasturan - synonym of pitchblende 

Dana VII, pp. 611, 614, 617 · 

H lvenite - uraninite with rare earths 

U = 57.8%: Th = 5.9% 

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

Pitchblende - colloform and massive uraninite 

U = 56.9 to 82.9% 

Dana VII, pp. 611-619 

U lr ichite - synonym of uraninite 

Dana VII, pp. 611, 613, 617 

Uranoniobite- synonym of uraninite 

Da,na VII, pp. 611, 613 
Uranopissite -synonym of -.raninite 

URANOCIRCITE 

Ba(U02)2 (P04)2.8H20 

Barium analogue of autunite 

u = 51.3% 

Dana VI, p. 859 

URANOPHAHE 

Ca(U02)2Si20,.6H20 

U = 48.1 to 60.4% 

Dana VI, p. 699 

Beta-uranopliane - polymorph of uranophane 

Novalek, R.,~eskf, Spol. Nauk Vestnik, 

article VII, pp. 1-36, 1935 

Lambertite - synonym of uranophane 

Am. Mineralogist, vol. 11, pp. 155·157, 1926 

RanJite- a mixture of betauranophane, some 

tyuyamunite, and calcite. 

Frondel, C., Harvard University, personal 

communication 

Uranotil- synonym of uranophane 

U = 56.7 to 60.2% 

Dana VI, p. 699 

URAHOPILITE 

(U02) 6 (S04)(0H)1 o-12H20 

U = 69.6 to 69.9% 

Beta-uranopilite 

U 6(S04)01,.10H20 

" v tl ~ Novacek, R., Cesk' Spol. Nauk Veatnik, 

article VII, pp. 1-36, 1935 

URANOSPA THITE 

Hydrated uranyl phosphate? 

Composition unknown 

Mineralog. Mag., vol. 17, pp. 221•236, 1915 

URANOSPHAERITE 

Bi2U20 9.3H20 

U = 45.9 to 43.3% 

Dana VII, .P· 631 

9 

URANOSPINITE 

Ca(U02)2(As0 4)2.8-12H20 

u = 53.4% 

Dana VI, pp. 858-859 

UVANITE 

2U03 .3V 20 5 .15H20 

u = 32.9% 

Mineralog. Mag., vol. 17, p. 359, 1916 1 

Washington Acad. Sci. Jour., vol. 4, 

p. 576, 1914 

V AHDEHBRAHDEITE 

CuU0 4 .2H20 

U = 63.5 to 64.3% 

Dana VII, pp. 632-633 

UranolepiJite- s~6nym of vandenbrandeite 

Am. Mineralogist, vol. 19, pp. 235-236, 1934 

V AHDEHDRIESSCHEITE 

Hydrous lead .. ~ium oxide Validity of 

species is questionable. 

Soc. beige g€ologie Bull., vol. 70, pp. 212-225, 

1947 

VOGLITE 

Cu2Cu(U02)(C03 ) 4.6H20? 

u = .34.7% 

Dana VI, p. 308 

WALPURGITE 

Bi4(U02)(As04)20 4.3H20 

U = 13.5 to 17.0% 

Dana VI~. 860; Neues Jahrh., 44, Aht. A, 

1948; Evans, H. T.,personal communication, 

1949 

ZEUHERITE 

C u(UO 2 ) 2(As0 4 ) 2•8H 20 

u = 50.4% 

Daria VI, p. 857 

ZIPPEITE 

2UO 3 .SO 3 .5-6H 2 0 

U = 64.9 to 67.4% 

Dana VI, p. 978 
B •. MINERALS WITH MINOR AMOUNTS OF URANlVM ANJ?.T~ORIUM 

ALLANITE 

(Ca,Ce,Th)2(Al,Fe,Mg) 3Si 30 12(0H) 

U = 0.017%, Th = up to 3.2% 

Dana VI, pp. 522·526 

Hagatelite- phosphatian variety of allanite 

Th :s 0.8% 

Am. Mineralogist, vol. 16, pp. 343-344, 1931 

Orthite - synonym of allanite 

Yttro-orthite (also, yttrium orthite)- synonym 

of allanit~ · 

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

AHTHRAXOUTE 

A hydrocarbon, nickeliferous and uraniferous; compare kolm and thucolite. 

u :s 0.0029% 

Am. Mineralogist, vol. 19, pp. 426-428, 1934 

Asphaltite,lwogglte, and carburan are similar 

materials 

BASTHAESITE 

(Ce,La)FC03 

U and Th present hut less than 1%. 

U. S. Geol. Survey, manuscript report; 

Dana VI, p. 291 

CAPPE LEHITE 

(Ba, Y) 2SiBO e 

Th = 0.42% 

Dana VI~ pp. 413-414 

CERITE 

Ce2Si05 

U = 0.4%, Th = 0.3% 

Am. Mineralogist, vol. 25, pp. 381-404, 1940 

CHIHGLUSUITE 

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

Th = 0.05% 

Acad. sci. URSS Bull., pp. 153-157, 1938 

10 

CORDY LITE 

Ce2BaF(COs)s -

Th = up to 0.27% 

Dana VI, appendix II, p. 31 

CORVUSITE 

V 20 4.6V 20 5 .xH20? 

Validity of species is questionable. 

U = 1.0 to 2.8% 

Am. Mineralogist, vol. 18, pp.195-205, 1933 

DAVIDITE 

Contains Ti, Fe,, rare .earths, U, · V, and Cr. · 

U = 8.1%, Th = 0.12% 

Dana VII, p. 542; ·Royal Soc. S. Australia 

Trans., vol •. 68, .P~ 334,1944 

.FERSMITE .~. 

(Ca,Ce,Na)(Cb,Ti,Fe~Al) (0,0H,F) 8 Th = 0.42% ... · 

Acad. sci. URSS, C. R., 52, pp. 69-71, 1946 ·:'. :·;·.,,,;,. . . . 

HIELMITE 

AB20e or A2Bs01o 

Also hjelmite. 

A = ·Y,Fe 2,U4,Mn,Ca· 

B = Cb, Ta,Sn, W 

U = 4.0 to 4.3% 

Dana VII, pp. 779-780 

HOKUTOL.ITE 

Variety of barite. Radioactive mixture of 

Ph and Ba sulfate. Probably contains 

Ra,Th, and U. 

Mineralog. Mag., vol. 16, p. 362, 1913 

Anglesobarite - synonym of hokutolite 

JOHHSTRUPITE 

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

Th = 0.7% 

Dana VI, pp. 72G-721 
KOLM 

Rock with hydrocarbon ana uranium. Form 

in which uranium is present is unknown. 

u = 0.44% 

Am. Chern. Soc. Jour., vol. 52, pp. 4848-4851, 

1930 

See also anthraxolite and thucolite. 

LOVOZERITE 

Complex silicate of Ti and Zr. 

Th = 0.50% 

Acad. sci. URSS, C. R. 25, p. 735, 1939 

MELANOC ERI TE 

Chiefly a boro-silicate of the Ce and Y metals. 

Th = 1.5% 

Dana VI, pp. 414-415 

Caryocerite - near melanocerite 

Th = 12.0% 

Dana VI, p. 415 

MICROLITE 

(Na,Ca} 2 (Ta,Cb) 20 6 (0,0H,F) 

In pyrochlore-microlite series. 

U = up to 5.1%, Th = 0.2% 

Dana VII, pp. 748-754 

Calciotantalite- possibly a mixture of microlite and tantalite. 

Dana VII, p. 787 

HaJJamite -synonym of microlite 

Dana VII, p. 748 

Metasimpsonite- an alteration product of 

simpsonite, later identified with microlite. 

Dana VII, p. 755 

Neotantalite - an altered microlite with 

composition close to tantalite. 

U = tr. 

Dana VII, pp. 748, 75Q-751, 753 

MOSANDRITE 

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

Th ='0.3% 

Dana VI, pp. 721-722; Also, Zentralbl. 

Mineralogie, 1934, Abt .. A, pp. 76-79, 

11 

PISEKITE 

Essentially a columbate-tantalate-titanate 

of U and rare earths, with Th and Sn. No 

quantitative analysis available. May be 

related to ampangabeite. 

Dana VII, pp. 807-808 

PYROCHLORE 

(Na,Ca) 2 (Cb,Ta) 2 0aF 

In pyrochlore-microlite series. 

U = up to 14.0% 

Th = up to 4.4% 

Dana VII, pp. 748-754 

Azorite - synonym of pyrochlore 

Chalcolamprite - synonym of pyrochlore 

Dana VII, pp. 7 48, 750, 754 

E 1/sworthite = composition is close to 

pyrochlore, but analyses show it is 

relatively high in U and H20 and low 

in alkalies. 

u = 17.1% 

Dana VII, pp. 748, 750-752 

EnJeiolite -similar in composition to 

chalcolamprite. An altered pyrochlore? 

Dana VII, pp. 748, 754 

Hatchettolite - uranian pyrochlore 

U = 14.0%, Th = 0.5% 

Dana VII, pp. 748, 75Q-752 

Koppite - synonym of pyrochlore 

Dana VII, pp. 748, 750, 752 

Marignacite- synonym of pyrochlore 

Th = 0.2% 

Dana VII, pp. 748, 750-752 

Py"hite - synonym of pyrochlore 

Dana VII, pp. 748, 752, 754 

RIHKITE 

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

Th = small amounts 

Dana VI, p. 722 

KonJrilcite - a mixture of rinkite and zeolite; 

synonym of kondrikovite. 

Lovcho"ite - alteration product of rinkite? 

U = up to 0.01% 

Th = up to 0.11% 
Vudyavrite - alteration product of rinkite. 

Th :: about 1% 

RINKOLITE 

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

Th = up to 0.41% 

Am. Mineralogist, vol. 11, p. 289, 1926 

Acad. s. URSS Bull. 20, p. 1181, 1926 

ROWLANDITE 

An yttrium silicate. 

u = 0.4% 

Dana VI, p. 104 7 

STEENSTRUPINE 

Complex silicate of rare earths, Th,Na,K,Fe, 

Mn,Mg,P ,Be,Al, and Ta, with (OH) and F. 

Th = 6.2% 

Dana VI, p. 415, Also, Neues Jahrb., BeilageBand 64, Abt. A, pp. 235-249, 1931 

TENGERITE 

CaY 3 (C0 3 ) 4 (0H) 3 .3H20? 

Alteration product of yttrialite. 

Th = 0.3% 

Sci. Papers lnst. Phys. Chern. Res. (Tokyo), 

vol. 34, pp. 832-841, 1938 

The originally described tengerite, Dana VI, 

pp. 306-307, is a different mineral, supposedly beryllium yttrium carbonate; no published 

analysis. 

THALENITE 

Y 4Si 4 01s(OH)2 

Related to yttrialite. 

Th = 0.16% 

Dana VI, appendix I, p. 68 

THUCOLITE 

A hydrocarbon. 

See kolm and anthraxolite. 

U = 4. 9%, Th = 42.5% 

These percentages are from the ash which· 

is only about 1 percent by weight of total 

material. 

Am. Mineralogist, vol. 13, pp. 419-448, 1928 

12 

TRITOMITE 

A boro-silicate of the cerium and yttrium 

metals, calcium, and thorium, also containing fluorine. Exact formula uncertain. 

Th = 7.5 to 8.3% 

Dana VI, p. 416 

TSCHEFFKINITE 

Complex silicate of rare earths, Fe,Mn,Mg, 

Ca,Al,Ti,Th, and U. 

Also chevkinite 

U = 2.3%, Th = up to 18.4% 

Am. Mineralogist, vol. 31, pp. 582-588, 1946 

TURANITE 

A hydrated copper vanadate reported to contain 

3.2% U; validity of species is questionable. 

Acad. sci. St. Petersbourg, Bull. 3, p. 185, 

1909 

VANOXITE 

A hydrated vanadium oxide, perhaps 

2V 20 4 .V 20 5 .8H20, reported to contain 

up to 0.5% U. 

U. S. Geol. Survey Bull. 750, p. 63, 1924 

VOLBORTHITE 

Cu 2 (V0 4 )(0H) 

u = 3.1% 

Nenadkevich and Volkov, Acad. sci. URSS, 

C.R. 43, 1926 

Calciovolborthite 

Cu,Ca(V0 4 )0H 

Nenadkevich and Volkov, Acad. sci. URSS, 

C. R. 43, 1926 

WI/KITE 

·Ill-defined mixture and alteration product of 

minerals high in Cb,Ta,Ti,Si, andY. 

Dana VII, p. 801 

Nuolaite 

A mixture similar to wiikite. 

Th = 1.8 to 3.5% 

Dana VII, p. 801 
XENOTIME 

YP04 

U = up to 3.6% 

Th = 0.4 .to 2.9% 

Dana VI, pp. 748-749 

YTTRIALITE 

Silicate of Th and Y metals chiefly. 

U = 0.8%, Th = 10.5% 

Dana VI, p. 512 

YTTROCRASITE 

(Y, Th, U ,Ca).iTi) 4 0 11? 

U = 2.3%, Th = 7.7% 

Dana VII, p. 793 

YTTROT ANT A LITE 

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

U = 3.4 to 3.9% 

Th = 0.6 to 0.7% 

Dana VI, pp. 763-764 

Yttrocolumbite is ·similar 

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

ZIRCON 

ZrSi04 

U and Th very low in most sam_ples, but up 

to 2.7% U, and up to 13.1% Th reported. 

Dana VI, pp. 482-486 

Alvite 

Variety of zircon, near cyrtolite. 

Th = 13.1%? 

Dana VI, pp. 487-488 

Calyptolite 

Probably altered zircon. 

Dana VI, pp. 482, 486 

13 

Cyrtolite 

Altered zircon, containing U, Th; Y, and other 

rare earths. 

U =up to 1.4% 

Dana VI, p. 487 

Hagatalite- synonym of zircon 

U = tr., Th :;: 1.3% 

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

Hoegtveitite 

May be alvite. 

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

Naegite -variety of zircon 

U = 2.4 to 2.7% 

Th = 2.5 to 4.4% 

Chern. Soc. Japan Jour., vol. 42, p. 1, 1921 

Also, Mineralog. Abs., vol. 2, p. 36, 1923 

Oersteclite 

Altered zircon. 

Dana VI, p. 486 

Oyamalite- variety of zircon 

Th = 0.5% 

Am. Mineralogist, vol. 11, pp. 137-138, 1926 

Tachyaphaltlte 

Prob~bly altered zircon. 

Dana VI, p. 486 

Yamagutlllte- variety of zircon 

Also, yamaguchilite 

Contains P 20 5 and rare earths. 

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

ZIRKELITE 

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

U = 1.4%, Th = 6.4% 

Dana VII, p. 740 
C. MINERALS THAT SHOULD BE TESTED FOR URANIUM AND THORIUM 

ABUKUMALITE 

CaY phosphate silicate 

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

AMBA TOAR IN ITE 

Carbonate of Sr and rare earths. 

Mineralog. Ahs., vol. 1, p. 148, 1920 

ANCYLITE 

Sr 3Ce 4 (C03) 7(0H).3H20? 

Dana V~, appendix II, pp. 5-6 

Weibyite 

Related to ancylite 

Dana VI, pp. 291-292 

BAZZITE 

Silicate of scandium, with Fe, Na, and rare 

earths. 

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

BECKE LITE 

Ca3(Ce,La,Pr,Nd) 4Si301 5 

Dana VI, appendix II, p. 14 

BRITHOLITE 

A cerium-silicate apatite? 

Dana VI, appendix ll, pp. 19-20 

BUSZITE 

Silicate of rare earths 

Am. Mineralogist, vol. 14, pp. 438-439, 1929 

CENOSITE 

2CaO.(Ce,Y)20s.C02.4Si02.H20? 

Also kainosite 

Am. Mineralogist, vol. 15, pp. 205-219, 1930 

CHURCHITE 

A hydrous phosphate of cerium and calcium 

Dana VI, p. 820 

ERDMANNITE 

Hydrous silicate of Ce, Y ,Fe,Mn,Al, and Ca. 

14 

A mixture of homilite with a mineral in the 

melano~erite group? 

Dana VI, pp. 416, 507 

ERIKITE 

Phosphate-silicate of rare earths, Al, Ca, and 

Na. 

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

EUDIALYTE 

X5Y 2Sie01a(Oh,Cl) 

X = Ca, Na, Ce, etc. 

Y = Zr, Fe, Cb, etc. 

Dana VI, pp. 409-412 

Eucolite: 

Same as eudialyte, but with different optical 

sign. 

Dana VI, pp. 409-412 

FLORENCITE 

CeA13(PO 4) 2(0H) e 

Dana VI, appendix II, p. 42 

FLUOCERITE 

(Ce,La)F 3 

Am. Mineralogist, vol. 6, p. 119, 1921 

Tysonite = fluocerite 

Dana VI, p. 166 

GADOLINITE 

Be 2FeY ~i201s 

Dana VI, pp. 509-512 

HELLANDITE 

Ca2(Ce,Al,Mn)e8i401 g.8H20 

Mineralog. Mag., vol. 13, p. 368, 1903 

LAHTHANITE 

La2(COs)2.9H2D 

~ana VI, pp. 302-303.! 

LESSINGITE 

Silicate of the rare earths. 

Mineralog. Abs., vol. 10, p. 245, 1948 
LORANS KITE 

(Y ,Ce,Ca)(Ta,Zr)0 4 ? 

Dana VII, p. 767 

HUEVITE 

Titano-columbate of Y, Fe, and Ta. Validity 

of species is questionable. 

Am. Mineralogist, vol. 32, pp. 204-205,1947 

PARISITE 

CaCe2F 2(C0s)s? 

Dana VI, pp. 290-291 

Synchisite 

CaCeF(C03 ) 2 

Related to parisite. 

Mineralog. Mag., vol. 13, pp. 207-208, 1902 

PEROVSKITE GROUP 

Perovs Ieite 

CaTi03 - some analyses show rare earths. 

Dana VII, pp. 730-734 

Dysanalyte -synonym of perovskite; analYI}s 

shows rare earths. 

Dana VII, pp. _730-732 

Knopite - in perovskite group; analysis shows 

rare earths. 

Dana VII, pp. 730-733 

Loparite -end member in perovskite-knopiteloparite series. 

Perhaps (Na,Ce,Ca)2(Ti,Cb)20 8 

Dana VII, pp. 730, 732-734 

RETZIAH 

Basic arsenate of Mn, Cu, and rare earths. 

Dana VI, appendix I, p. 59 

15 

RHABDOPHAH ITE 

_Hydrous phosphate of Ce andY 'groups; 

perhaps (Ce,Y)P04 .H20 

Also rhabdophane 

Dana VI, p. 820 

Scovi//ite- synonym of rhabdophanite 

Dana VI, p. 820 

SCHETE LIGITE 

(Ca, Y,Sb,Mn)2(Ti,Ta,Cb)2(0,0H), 

Dana VII, p. 757 

SPHENE . ' 

Essentially CaTiSi20 5 , but commonly contains 

rare earths, columbium, and other elements. 

Am. Mineralogist, vol. 32, pp. 637-642, 1947 

Keilhauite = yttrian sphene 

Dana VI, ·p. 117 

Titanite - synonym of sphene 

Yttrotltanite - synonym of keilhauite 

THORTVEITITE 

(Sc,Y)2Si20, 

Am. Mineralogist, vol. 7, pp. 195-196, 1922 

Belanamlte - synonym of thortveitite 

·Am. Mineralosist, vol. 11, p. 137, 1926 

,, TORHEBOHMITE 

Chiefly R 3(F, OH)(SiO 4) 2 

R = Ce,(La,ND),Al,Fe,Mn,Mg,Ca · 

Am. Mineralogist, vol. 6, pp. 118-119, 1921 

WEIHSCHEHKITE 

YP04 .2H20 

Am. Mineralogist, vol. 29, pp. 97-107, 1944 

• 
D. MINERALS THAT ARE NON-URANIUM- OR NON-THORIUM-BEARING, 

BUT THAT HAVE BEEN REPORTED TO CONTAIN IMPURITIES OR 

INTERGROWTHS OF URANIUM, THORIUM, OR RARE-EARTH MINERALS 

BADDELEYITE 

Zr02 

Analyses show traces· of rare earths. 

Dana VII, pp. 607-610 

Brazilite -mixture of fibrous baddeleyite, 

zircon, altered zircon, and other minerals 

Dana VII, p. 610 

Ca/Jasite - mixture of baddeleyite, zircon, 

altered zircon, and other minerals. 

Dana VII, p. 610 

Zirkite - mixture of baddeleyite, zircon, 

altered zircon and other minerals. 

COLUMBITE-TANTALITE SERIES 

Columbite 

(Fe ,Mn )(Cb, T a)20 a 

U = up to 1.7% 

Dana VII, pp. 78Q-785 

Baierite - synonym of columbite 

Also baierine 

Dana VII, p. 780 

Dianite - synonym of columbite 

Dana VII, p. 780 

Ferrocolumbite- synonym of columhite 

Dana VII, pp. 780, 783 

Ferro-ilmenite - synonym of columbite 

Dana VII, pp. 780, 785 

Ferro*antalite- synonym of tantalite 

Dana VII, pp. 780, 783 

Greenlandite- synonym of columbite 

Dana VII, pp. 780, 784 

Hermannolite - synonym of columbite 

Dana VII, pp. 780, 785 

1/delonsite- synonym of tantalite 

Dana VII~ p. 780 

Manganocolumbite - variety of columbite 

Dana VII, pp. 780, 783·784 

16 

Manganotantalite- synonym of tantalite 

Dana VII, pp. 780, 783-784 

Siderotantalite- synonym of tantalite 

Dana VII, p. 780 

Tanto lite 

(Fe,Mn)(Ta,CbhOa 

FLUORITE 

CaF2 

Some samples, especially those of deeppurple color show radioactivity. This 

generally can be shown to be due to 

inclusions of uranium minerals, but the 

fluorite itself may possibly contain traces 

of uranium. 

Dana VI, pp. 161-164 

Yttrocerite 

CaF 2 with varying amounts of (Y,Ce)F 3 • 

Dana VI, p. 182 

Yttrolluorite • yttrian variety of fluorite 

Mineralog. Mag., vol. 16, p. 376, 1913 

FRANCO UTE 

An apatite which is an important constituent 

of many phosphate rocks, but which analyses 

show contains very little rare e~s. 

Dana VI, pp. 762, 764 

ILMEHORUTILE 

Columbian rutile. 

Dana VII, pp. 554, 557, 560 

KALKOWSKITE 

Fe2Tis09? 

Analysis shows rare earths. 

Dana Vll, pp. 773-774 

KATANGITE 

H2CuSi04 + H20? 

Is .identical with chrysocolla; found together 

with uranium minerals in Katanga, Belgian 

Congo. 

Am. Mineralogist, vol. 8, p. 39, 1923 
OPAL 

Si02.nH20 

Some varieties show green fluorescence due 

to uranium content. 

PYROMORPHITE 

Pb5(P04)sCl 

Some specimens are uraniferous. 

Zeitschr. Kristallographie, vol. 62, pp. 177-178, 

1925 

SCAPOLITE 

(Na,Ca) 4Als(Al,Si)sSi 0~ 4(Cl,C 0 3 ,SO 4) 

A fluorescent variety contains 0.023% U. 

Chemie der Erde, vol. 9, pp. 139-144, 1934-35 

,, SE FSTROMITE 

Mixture largely of ilmenite, similar to davidite. 

Dana VII, p. 542 

17 

STRUEVERITE 

Tantalian rutile. 

Dana VII, pp. 554, 557-560 

TAPIOLITE SERIES 

Cassiterotantalite -synonym of ixiolite 

Dana VII, p. 778 

lxiolite -may be equal to tapiolite 

Dana VII, p. 778 

lxionolite -synonym of ixiolite 

Mossite 

Fe(Cb,Ta)2 0 6 

Dana VII, pp. 775-777 

Slcogbglite - synonym of tapiolite 

Dana VII, pp. 775-778 

Tapiolite 

FeTa2 0 6 

Dana VII, pp. 775-777 
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 minemls that are non-uranium- or non-thorium-bearing, but 

t~at have been reported to contain impurities or intergrowths of 

uranium, thorium, or rare-earth minerals. 

Page 

Abukumalite(C) .. .. ..••. .. ... .. . . ..... .. ... .• .. ..•.. .. 14 

Adelpholite(A) = fergusonite? ••...•..••.......... 4 

Aeschynite(A), see eschynite . . .• . . . . . . . . •. •. • .. . 3 

Allanite(B) ... .... ..•.. ..... .• .. . .. .. ..•.... ..••. ...•.. 10 

Alvite(B), see zircon . ..... •.... .. ..... .• •.•.• •....• 13 

Amhatoarinite(C) •. . . .. .. . . .. .. . . . . . . . .• . •. •. . . . •. .• ... 14 

Ampangaheite(A) •. . . . .. • . . . . . . . . . . . . . • . . . . • . . • . . . . . . . 2 

Ancylite(C) .. ... .... ...... .••• .... •.• .... ...•....•. ..•. 14 

Andersonite(A) . • . • • . . . . . . . . . . . . • . . . • • • . . • • • . • . . . • . • . • 2 

Anglesoharite(B) = hokutolite • .• . . . • .• • • . • . .. • . • • 10 

Annerb'dite(A), see samarskite •..•.•.•.••..•...•.. 6 

Anthraxolite(B) . . . . .. • . . . . • . . . • . • . • • . • • • • • • . . . • . .. . • . . 10 

Arrhenite(A), see fergusonite ..................... 4 

Asphaltite(B), see anthraxolite • • • ••• • • •• •• • . • . . •. 10 

Auerlite(A), see thorite ............................. 7 

Autunite(A) ••.....• :................................... 2 

Azorite(B) = pyrochlore • . • . . . . •• . •• • . • • . . • . . • • • • . • . 11 

BaddeleY.ite(D) ..•.••.••••.•••..•..••••••••.••.••.•.••• 16 

Baierite(D) see columbite-tantalite series •••• 16 

Bassetite(A) • . . . • . • • . • . • • • • • • • • . • • . • . • . • . • . . • . . • • •• • . • • 2 

Bastnaesite(B) . . . • . . • . • • . . . . . . . •• . . . • . . • • • • • • • • • • • . • . • 10 

Bayleyite(A) • • . . . • . • . • . . . . • . . . • . . . • • • • • • • • • . • • . • . • . • . • • 2 

Bazzite(C) ............................................. 14 

Becke lite( C) .. ;... .... .•...••.. •.. .• .•. ....... .. •..•. .• 14 

Becquerelite(A) •.•..•.••.. ·............ •• . •. . . ... . . . . .. 2 

Befanamite(C) = thortveitite .. • . .. . . • . • . • . . . . . .. . • 15 

Betafite(A) . . . . . •. . . .. . . . • . . . . . .. . • . • . . • .. . . . • . • . . .. . • • • 2 

Billietite(A) see hecquerelite .. .. • . . .. .. . . . • •• .. •• 2 

:Slomstrandine(A) = p:iorite • .• •. .• • • . •. .. .• . •. • • •• 6 

Blomstrandinite(A) = hlomstrandine • • . . . . .. . • . .. 6 

Blomstrandite(A) :: betafite • .. .• • . •. . .• .• • . .. . .• . • 2 

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

Brannerite(A) ..• , . . . • . . • .• . •. . • .. • • . . • . • • • •• •• • • •• • • . •• 2 

Brazilite(D) see baddeleyite' ........... .. ..... •• .• 16 

Britholite(C) ... •. .. ... . • •• . .• •• •. • • . • .... • • ... •. • ... . •• 14 

Broggite(B) see anthraxolite • • • ... • . . •• •. . .. • • ... • 10 BrSg~rite (A) see uraninite ..••••. ~......... • • .. .. • 8 

Buszlte(C) . .. .. . .. ... . •. ... •• • •• • •• . • .. ... •. • . • • • . . • . • • 14 

Calc iocarnotite(A) = tyuyamunite . • • • .. • . • • • • • .. . 8 

Calciosamarskite(A) •• • • • . . . . . •• •• . . • •. .. . •• • •• .. •• •• 2 

Calciotantalite(B) see micro lite ...... ~.. ......... 11 

Calciothorite(A) see thorite ••••... .•.•. ........... 7 

Calciovolborthite(B) see volborthite .. . . • . •. . • •• 12 

Calcouranite(A) = autunite • • . ... • .. • • ... . . .... .. .. 2 

Caldasite(D) see baddeleyite ..................... 16 

Calyptolite(B) see zircon . .• . • • • • . •• . •• . •• • • • • . • ... 13 Ca~pelenite(B) .• . .. .• •• .. . •• •• . . . •• . • • .. . • . .• •• • .. . • • . 10 

Carouran (B) see anthraxolite . .. . • . .. . • . • • • • . .. .. . 10 

Carnotite(A) . . . • . • • . • . . .. .. . . .. .. • . • • •• ............ •. .. 2 

Caryocerite(B) see melanoceri~e ... • .• •. • ... . .. . . 11 

Cassiterotantalite(D) see tapiolite series ••••. 19 

Cenosite(C) . ••• .. .•• .• •. ..... •. •••.• ••• .• .••.• •• . .•.• .• 14 

Cerite(B) ..................................... ·.......... 10 

Chalcolamp:ite(B) = pyrochlore .. •• •• . • . • . . •. •• .. 11 

Chalcolite(A) = torbernite . . . . .. • . . . .... .. • • • .. .• • • 8 

Chevkinite(B) = tscheffkinite . .. .. • • . • • • • . . . • . • . . • 12 

Chinglusuite(B) . .. . ... . . . . .. .. . .. .. . .... . •• . • . • . .. . .. • . 10 

Chinkolobwite(A) = sklodowskite • . •. • •• . ... . . . • . 7 

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

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Chlorothorite(A) = thorogummite •.•.............. Churchite(C) ......................................... .. Clarkeite(A) .......................................... .. Cleveite(A) see uraninite ......................... . Columbite(D) see columbite-tantalite series •. Columbite-taJltalite series (D) .................. . Coracite(A) = uraninite ........................... .. Cordylite(B) ......................................... .. Corvusite(B) ......................................... .. Cryptolite(A) = monazite ......................... .. Cuprosklodowskite(A) ...•..............•.....•.... ·~ 

Cupro-uranite(A) = torbernite ...••................. Cmite (A) ............................................ .. Cyrtolite(B) see zirc.on ........................... .. 

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Dakeite(A) = schroeckingerite .. ." ............. ·.... 7 

Davidite (B) .'.............. ... ... . . .• ... • • •• . . .. • •• .. ... 10 

Delorenzite(A) .. ... . . .. . . ................. •. .. .. ... .. . . 3 

Dewindtite(A) . .. .. . .. .... . . . . . . .. .. . . • .. . .. .. • . . . ... .. 3 

Dianite(D) see columbite-tantalite series . ..... 16 

Diderichite(A) . . • . • . . • . . • . . .. • • . . .. . • . • . • .. • . • . • • . . • • . • 3 

Djalmite(A) ............................................ 3 

llioogmansite(A) . .. .. . . .. . .. . . .. • •. . .. ... .. .. .. .. . .. • 3 

Dumontite(A) .......................................... 3 

Dysanalyte(C) = perovskite . :. .. .. . . ... ... • . . . .. •. 15 

Edwardsite(A) = monazite ....................... .. Eliasite(A) = gummite ............................. . Ellsv.orthite(B) see pyrochlore ................ .. Enalite(A) see thorite .............................. . Endeiolite(B)'see pyrochlore ..................... . Epiianthinite(A) ..................................... . Erdmannite(C) ........................................ . Eremite(A) = monazite ............................ . Erikite (C) ..................................... ·~·· .. .. Eschwegite(A) see euxenite ..................... . Eschynite(A) ........................................ .. Eucolite(C) see eudialyte ......................... . Eucrasite(A) see thorite ....••..••••••.•••...•..•••• Eudialyte(C) .......................................... . Euxenite(A) •..•.•..•.•• ~ ..••...•.•.•.•.••••...••.•..••• Eytlandite (A) = samarskite ....................... . 

Ferghanite(A) see tyuyamunite .................. . Fergusonite(A) ....................................... . Ferrocolumbite(D) see columbite-tantalite 

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· series ................................................. 16 

Ferro-ilmenite(D) see columbite-tantalite 

series ............................................... . Ferrotantalite(D) see columbite-tantalite 

series ............................. ~ ................ .. Ferrothorite(A) see thorite ....................... . Fersmite(B) ........................................... . Florencite(C) ........................................ . Fluocerite(C) ........................................ . Fluorite(D) ·· .......................................... . Flutherite(A) = liebigite • • •. . • . • • . . • • • .. • ....... . Formanite(A) ......................................... . Fourmarierite(A) .\ .................................. . Francolite(D) ........................................ . Freyalite(A) see thorite ..••......•......•..•...•... Fritzscheite(A) ...................................... . 

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Gadolinite(C) ............................... , ........ . Gilpinite(A) = johannite ......................... .. Greenlandite(D) see columbite-tantalite 

series ............................................... . Gummite(A) .......................................... .. 

Haddamite(B) = microlite ........................ .. Hagatalite(B) = zircon ........................... .. Hatchettolite(B) see pyrochlore ......... ~ .. .a"'" 

Hellandite(C) ........................................ . Hermannolite(D) see cohunbite-tantalite 

series ............................................... . Hielmite(B) .......................................... .. Hlopinite(A) see khlopinite ..................... .. Hoegtveitite(B) see zucon ....................... . Hokutolite(B) = barite ........................... .. Huttonite(A) ......................................... .. Hyblite(A) see thorite ............................. .. Hvdro-euxenite(A}: ampangabeite ............. . Hydrosamarskite(A) see samarskite ....•....... Hydrothorite(A) see mackintoshite ............. . 

Ianthinite(A) ........................................ .. lldefonsite(D) see columbite-tantalite 

series ............................................... . Ilmenorutile(D) ...................................... . Ishikawaite(A) ...................................... . lxiolite(D) see tapiolite series ................ .. Ixionolite(D) see tapioJite series ............ .. 

Jachymovite(A) = cuprosklodowskite .......... . J ohannite(A) ........................................ .. J ohnstrupite(B) ..................................... .. 

Kainosite(C) = cenosite .......................... . Kalkowskite(D) ...................................... . Klrarfveite(A) see monazite ...................... . Kasolite(A) .................................... , , ••...• Katangite(D) ........... , .. , .... , ..................... , Keilhauite(C) see sphene ........................ .. Khlopinite (A) · .. , ..................................... . Knopite(C) see perovskite group ............... .. 

Kochelite(A) = fergusonite ..................... .. Kolm(B) ............................................... . 

Kondrikovite(B) = kondrikite see rinkite .... .. Koppite(B) = pyrochl«e ................ -; ........ .. 

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Lambertite(A) = uranophane • .. .. .. .. .. .. .. .... .. .. 9 

Lanthanite(C) ............................. :........... 14 

Lessingite(C) .............................. -........... 14 

LiebifSite(A) ........................................... 5 

Lopar1te(C) see perovskite group .. ..... .. ... .. ... 15 

Loranskite(C) . .. . ... . .... .. . ... .. ... .. .. .. . ... . ... .. .. 15 

Lovchorrite(B) see rinkite .. .. .... .. ... .. . .. .. .. .. . 11 

Lovozerite(B) .. .. .. .. . .. . .. •. .. . .. .. .. . .... .. .. .. . . .. . 11 

Lyndochite(A) see euxenite .. .. .. ... .... . .. . . .. .. . 3 

Mackintoshite(A) .................................... . Maitlandite(A) ....................................... .. 

Mangan'?colu~ite(D) see columbitetantallte ser1es ................................... . 

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16 Mangan<?tantal~te(D) see columbitetantallte series .. . . .. • .. .. .. . .. .. . .. . .. . .. .• . .. .. . .. 16 

Marignacite(B) = pyrochlore .. .. .. . .. .. .. .. .. .... .. 11 

Masuyite(A) ......................... ................... 5 

Medjidite (A) .......................................... 5 

Melanocerite(B) . .. .. .. . .. .. .. .. .. • .. .. .. .. .. • .. .. . .. .. 11 

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

Mengite(A) = monazite .. .. . .. . .. .. .. .. .. .. .. .. .. .. .. 5 

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

Metachalcolite(A) see torbernite ......... , .. .. .. • 8 

Metasimpsonite(B) see microlite ...... .. ......... 11 

Metatorliernite(A) see torbernite .. .. • .. . .. .. .. .. .. 8 

Microlite(B) . .. . .. .. . .. . .. .. .. .. . .. .. .... .. .. .. .. .. • .. .• 11 

Monazite(A) . .. • .. .. .. . .. .. . .. .. .. .. . • .. .. .. • .. . . .. .. .. • 5 

Monazitoid(A) = monazite .. .. ... ..... ..... ...... ... 5 

Mosandrite(B) ...... .......... ........ .. ....... ....... 11 

Mossite(D) see tapiolite series . .. .. .. .. .. .. .. .. .. 17 

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Naegite(B) = zircon .. .... .. .. ... ........... .... .. .. . 13 

Nagatelite(B) see allanite .................. ...... 10 

Nasturan(A)'see uraninite ......... ................. 8 

Neotantalite(B) see microlite ..................... 11 

Nicolayite(A) see maitlandite ..................... 5 

Nivenite(A) see uraninite .......................... 8 

Nohlite(A) .. .. .. .. . . . .. .. . .. .. .. . .. .. .. . .. . . . .. .. . .. .. .. 6 

Nuevite (C)............................................. 15 

Nuolaite(B) see wiikite ............................. 12 

Oerstedite(B) see zircon . .. .. .. .. .. .. .. .. .. .. .. .. .. 13 

Opal(D) ................................................. 17 

Orangite(A) = thorite .. .. .. .. .... .. .. .. .. .. .. .. .. .. .. 8 

Orthite(B) = allanite .... ..... .............. ......... 10 

Oyamalite(B) = zircon ... . .... .. .. .. .. ...... .. .. .. .. 13 

Paraschoe}ite (A) .. . . . .. . .. . . . .. .. .. ... .. .. . .. .. .. . .. 6 

Parisite(C ............................................. 15 

Parsonsite(A).......................................... 6 

Perovskite(C) see _perovskite group ... .... .. .. .. 15 

Perovskite group(C) ................................. 15 

Phosphocente(A) = monazite ..................... 5 

Phosphuranylite(A) . .. .. . . .. .. . . . .. .. .. .. . .. . .. .. . ... 6 

Pilbarite(A) see mackintoshite ................... 5 

Pisekite(B) .. .. ... .. . . ... . ... . .. .. ..... . . ... . ...... ... . 11 

Pitchblende(A) see uraninite .:.................... 8 

Pittinite (A) = gummite .. .. .. .. . .. .. .. .. .. . .. .. .. . 4 

Plumboniobite(A) see samarskite .. . .. .. .. .. .. . .. 6 

Polycrase(A) . . . .. .. .. .. . .. .. ... .. .. .. . . . .. . .. .. .. ... . . 6 

Polymignyte (A) . .. .. .. .. .. .. .. .. .. .. . .. .. . .. .. .. . .. .. 6 

Priorite(A) .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. .. .. .. .. .. 6 

Pyrochlore(B) ......................................... 11 

Pyromorehite(D) .. . .. . . . .. . .. .. . .. .... .. .. . .. .. ... . . . . 17 

pYrrhite(B) = pyrochlore . .. .. .. .. .. .. . .. .. .. .. .. .. • 11 

Randite(A} see uranophane ...................... .. Rauvite(A) ............................................ . Renardite(A) ......................................... . Retzian(C) ........................................... .. Rhabdophanite(C) ................................... . Richetite(A) ......................................... .. Rinkite(B) ........................................... .. Rinfolite(B) ......................................... .. Risorite(A) = fergusonite ......................... . Rogersite(A) = samarskite ...................... .. Rowlandite(B) ...................................... .. Rutherfordine(A) .................................... . 

Rutherfordite(A) see fergusonite ................ . 

Saleeite(A) ........... : ........................ _ _. ..... .. Samarskite(A) ....................................... .. 

Samiresite(A) ·= betafite ........................ .. Scapolite(D) .......................................... . Scheteligite(C) ..................................... .. Schoepite(A) ......................................... . Schroeckingerite(A) ................................ . Scovillite(C) = rhabdophanite ................... . Sefstromite(D) ................. , ..................... . Sengierite(A) .................... ~ .................. .. 

Sharpite(A) ........................................... . Siderotantatite(D) see columbite-tantalite 

series .............................................. .. Sipylite(A) = fergusonite ........................ .. Sklodowskite (A) ................................... . Skogb~lite(D) see tapiolite series ............ .. Soddyite(A) .......................................... . Sphene(C) ............................................ . Stasite(A) = dewindtite? ........................ .. Steenstrupine(B) .................................... . Strueverite(D} ....................................... . Studtite("A) ........................................... . Swartzite(A) ......................................... . Synchisite(C) see parisite ...................... .. 

Tachyaphaltite(B) .see zircon .................. .. Tantalite(D) see columbite-tantalite · series ............................................... . 

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Tanteuxenite(A) see euxenite ................... . Tapiolite(D) see tapiolite series .............. . Tapiolite series(D) ................................ . Tengerite(~) ......................................... . Thalenite(B) ......................................... . Thorianite(A) ........................................ . Thorite(A) ............................................ . Thorogummite(A) ................................... . Thorot ungstite(A) .................................. . Thortveitite(C) ...................................... . Thucolite(B) ........................................ . Titanite(C) = sphene ............................. . Toddite(A) see euxenite ........................ .. Torbernite(A) ....................................... . Tornebohmite(C) ................................... . Tritomite(B) ......................................... . Trogerite(A)_ ......................................... . Tscheffkinite(B) .................................... . Turanite(B) .......................................... . Turnerite(A) = monazite ........................ .. Tyrite(A) = fergusonite ......................... .. Tysonite(C) = fluocerite ......................... . Tyuyamunite(A) .................................... . 

Ulrichite(A) = uraninite .......................... . Uraconite(A) ....................................... .. 

Uraninite(A) ........................................ . Uranite(A) = torbernite- autunite group ..... .. Uranochalcite(A) see cuprosklodowsk1te ... .. Uranocher(A) = uraconite ....................... . Uranocircite(A) ... : ............................... .. Uranolepidite(A) = vandenbrandeite ........ . Uranoniobite(A) = uraninite .................... . Uranophane(A) .................................... .. Uranophyllite(A) = torbernite ................. .. Uranopilite(A) ...................................... . Uranopissite(A) = uraninite •...•...••...•.•••... Uranospathite(A) .................................. . Uranosphaerite(A) ................................ .. Uranospinite(A) .................................... . Uranotantalite(A) = samarskite ••.••.••••.•.•.•. 

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Vandenbrandeite(A) ................................ . Vandendriesscheite(A) ........................ ; .. . Vanoxite(B) ........................................ .. 

Vietinghofite(A) = samarskite ................. . Voglianite(A) see cuprosklodowskite .... ~ ... . Voglite(A) ........................................... . 

V olborthite(B) ..................................... .. Vudyavrite(B) see rinkite ...................... .. 

Walpurgite{A) ...................................... .. Weibyite(C) see ancylite ....................... .. Weinschenkite(C) ................................. .. Wiikite(B) ........................................... . 

Xenotime(B) ........................................ . 

Yamaguchilite(B) = yamagutilite ............. .. Y amagutilite(B) = zircon ........................ . 

Yttrialite(B) ........................... -. .......... .; ••. Yttriumorthite(B) = allanite .................... .. 

Uranothallite(A) = · liebigite ................... .. Uranothorianite(A) see thorianite ............ . Uranothorite(A) see thorite ................. ; .. .. Uranotil(A) = uranophane ....................... . Urdite(A) = monazite ............................. . Uvanite(A) .......................................... . 

Yttrocerite(D) see fluorite ............ ~ ......... . Yttrocolumhite(B) see yttrotantalite .......... . Yttrocrasitc(B) ..................................... . Yttrofluorite(D) see fluorite .................... . 

Yttrogummite(A) = gummite .................... .. Yttro-ilmenite(A) = samarskite ................ . Yttro-orthite(B) = allanite ...................... . Yttrotantalite(B) .................................. .. Yttrotitanite(C) = keilhauite ................... . 

Zeunerite(A) ........................................ . Zippeite(A) ........................................ .. Zircon(B) ............................................ . Zirkelite(B) ........................................ .. Zirkite(D) see baddeleyite ...................... . 

Pa-ge 

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