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NEW MINERAL NAMES* JonN L. J,mnnon Enw.lno S. Gnrw Anonrw C. Ronnnrs
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Page 1
American Mineralogist, Volume 79, pages 1210-1214, 1994
NEW MINERAL NAMES*
JonN L. J,mnnon
Department of Earth Sciences, University of Waterloo, Waterloo, Ontario N2L 3Gl, Canada
Enw.lno S. Gnrw
Department of Geological Sciences, University of Maine, Orono, Maine 04469, U.S.A.
Anonrw C. Ronnnrs
Geological Survey of Canada, 601 Booth Street, Ottawa, Ontario KIA 0E8. Canada
Clinobirnessite
A.I. Gorshkov, V.A. Drits, V.S. Putilina. E.V. Pokrov-
skaya, A.V. Sivtsov (1992) Natural and synthetic bir-
nessites. Litol. Polezn. Iskop., no.6,67-81 (in Russian;
English transl. in Lithology and Mineral Resources, 27,
503-s l4).
The existence of natural monoclinic and hexagonal bir-
nessite was described by Manceau, Gorshkov, and Drits
in Am. Mineral., 77 , 1144-1157 (1992). Structural inter-
pretation of electron diffraction patterns indicates that
the cell for monoclinic birnessite has a : 8.54, b: 15.39,
c: 7 A, P: 132.2.In addition, a structural modification
occurs with a: 10.44, b: 8.76, c: =14 A, 7 : ll0";
it is single-layered triclinic or double-layered monoclinic,
has an orderly distribution of vacancies, and is referred
to as clinobirnessite.
Discussion. To date, the only approved name, which
includes all structural types, is birnessite. J.L.J.
Hunchunite*
Shangquan Wu, Yi Yang, Qun Song (1992) A new gold
mineral-hunchunite (AurPb). Acta Mineral. Sinica,
I2(4),319-322 (in Chinese, English abs.).
Seven electron microprobe analyses gave Au 63.38-
66.26, Ag 1.68-2.96, Pb 31.60-34.64, sum 99.54-99.98
wto/0, close to AurPb. Occurs as anhedral granular aggre-
gates, 170-500 x 3-30 rrm, intergrown with gold, an-
yuiite, and lead in gold concentrates from Quaternary
alluvial placers along the Hunchun River, eastern Jilin
Province, China. Opaque, metallic luster, 11, : 128-149
kg/mm2, D"",. : 15.99 g/cm3 for Z : 8. Silver gray color
in reflected light, tarnishes to dull gray in lt/z-2 d; isotro-
pic; reflectance percentages in air (WC standard) are 40.9
(405 nm), 48.8 (436), 58.4 (480), 57.9 (526),59.s (546),
60.0 (589), 64.0 (644), and 60.0 (656). Cubic by analogy
with synthetic AurPb (PDF 28-436), with which rhe X-ray
powder pattern (Cu radiation) is in good agreement; space
group Fd3m, a : 7 .933 A. Strongest lines of the parrern
are 2.8 | 0(30,220), 2. 39 I ( I 00, 3 | l), 2.30 | (24,222),
* Before publication, minerals marked with an asterisk were
approved by the Commission on New Minerals and Mineral
Names, International Mineralogical Association.
1.526(23,51l), and 1.196(26,622). The new name alludes
to the type locality, along the Hunchun River. Type ma-
terial is in the National Geological Museum (in Beijing?).
Discussion. The average of the seven microprobe anal-
yses is Au 64.78, Ag 2.18, Pb 32.91, sum 99.87 wto/0,
corresponding to Au, ,oAg ,rPbo.no for two formula atoms.
J.L.J.
Szenicsite*
C.A. Francis, L.C. Pitman, D.E. Lange (1994) Szenicsite,
a new mineral from Tierra Amarilla, Chile. Mineral.
Record, 25(l), 76.
Electron microprobe analysis and TGA gave CuO 56.25,
MoO. 34.00, HrO 8.99, sum 99.24 wt0/0, corresponding to
Cur,,(MoOo)(OlI)0,,, ideally Cu.(MoOo)(OH)n. Occurs as
fracture fillings and freestanding dark green bladed crys-
tals to 3 x I x 0. I cm; crystals are elongate [001], with
dominant tl00) and common {010}, typically in radial
aggregates. Adamantine luster, 11 : 3.5-4, D^".,: 4.26,
D,",.: 4.30 g/cm3 for Z : 4. Optically biaxial positive, a
: 1.886(2), A : 1.892(2), 7 : 1.903(2), 2V^"
"
: 74(3),
2V*r:73", nonpleochroic, X: b, Y: L, Z: c, strong
dispersion r > v. Orthorhombic, space group Pnnm, a:
8.449(3), b -- 12.527(6), c : 6.067(l) A. Strongest lines
of the powder pattern (diffractometer) are 5.057(48,120),
3.759(100, t30), 2.77 3(57,3 10), 2.59r(67,320), and
2.132(3r,400).
The mineral was derived by the oxidation of bornite
and molybdenite and is associated with powellite, chryso-
colla, brochantite, hematite, and quartz from a mine near
Tierra Amarilla, Atacama, Chile. The new name is for T.
and M. Szenics, the finders of the mineral.
Discussion. Our general policy is not to write abstracts
ofabstracts, but an exception is made in this case because
the description is relatively complete. The authors' insti-
tution is the Harvard Mineralogical Museum, presum-
ably the repository for the type material. J.L.J.
Tetrarooseveltite*
J. Sejkora, T. RidkoSil (1994) Tetrarooseveltite,
B-Bi(AsOo), a new mineral species from Moldava de-
posit, the Kru5ni Hory Mts., northwestern Bohemia,
Czech Republic. Neues Jahrb. Mineral. Mon., 179-184.
0003-004x/94ll I I 2- 1 2 l0$02.00
l210

Page 2
JAMBOR ET AL.: NEW MINERAL NAMES
tztl
The mineral consists of grains up to 50 pm in diameter
that form powdery aggregates up to l0 mm in diameter
on fluorite and barite. White to yellowish color, earthy
luster, nonluminescent, soluble in cold HCl, D".," : 7.64
g,/cm' for Z : 4. Optically uniaxial positive, mean n :
2.20(5). Electron microprobe analysis (average of six) gave
Bi2O3 66.96, AsrO, 33.02, P,Os 0.03, sum 100.01 wt0/0,
corresponding to Bi(AsOo). The X-ray powder pattern is
in good agreement with that of synthetic tetragonal
Bi(AsO"), and by analogy a : 5.085(5), c : ll.69Q) A,
space group 14,/a; strongest lines ofthe pattern (13 lines
given; diffractometer, Cu radiation) are 4.660(ll,l0l),
3.066(100,1 12), 2.546(12,200), 1.933(55,204; overlaps
fluorite), t.7 97 (l 1,220), 1.58 I( I 0, I 07), and 1.55 I( I 7,3 I 2).
The mineral occurs as an oxidation product associated
with bayldonite, malachite, and mimetite in a fluorite +
barite + quartz vein in the Moldava Bi-Ag-As-Co-Ni de-
posit near Teplice, Czech Republic. The name alludes to
the tetragonal symmetry and polymorphism with roose-
veltite (monoclinic). Type material is in the N6rodni Mu-
seum, Praha (Prague). J.L.J.
Au(Te,Tl), Cur(Bi,Tl)Sn
S.V. Nechaev, S.N. Bondarenko (1993) Thallium min-
erals in the Ukranian Shield. Mineral. Zhurnal, l5(l),
75-79 (in Russian).
Electron microprobe analyses gave Au 56.54, 56.32,Te
22.72,21.65, Tl 18.19, 19.83, sum 97.44,97.80 wto/o,
corresponding to Au(Teo uoTlo ,r)- ,u. Microprobe analysis
of another mineral gave Tl 16.0, Cu 23.8, Fe 0.7,81 42.2,
Ag 0.4, Pb 0. I, S 16.0, Te 0. l, Se 0.2, sum 99.5 wto/0,
corresponding to (Cur rrFeo r)"2 e8OIi, rTlo u)", ,rS. ro, sim-
plified as Cur(Bi,Tl)rSo. The minerals occur with Bi and
Sb sulfosalts and thalcusite in scheelite-bearing skarns of
the Kamensk deposit in the Ukranian Shield. J.L.J.
(Pd,Ft)nsb3o (Pd,Cu)rSb, (Pd,Rh)r(Sb,As), (Rh,Ir)SbS,
(Ni,Fe,Rh)S, (Rh,Pt),(Fe,Ni)rS,
T.L. Evstigneyeva, A.S. Kudryavtsev, N.S. Rudashevskiy
(1992) Minerals of the platinum-group elements from
Yubdo (Ethiopia): New data. Mineral. Zhurnal, l4(l),
29-41(in Russian).
The unnamed minerals were found in the heavy con-
centrates from placers of the Yubdo platinum deposit,
middle course of the Birbir River, eastern Welega Prov-
ince, Ethiopia. The predominant minerals in the heavy
concentrates are isoferroplatinum, tetraferroplatinum, and
nickelian tulameenite. Closely associated minerals in-
clude Os-Ir-Ru-Pt-Rh alloys (e.g., Os, Ir), sperrylite, ir-
arsite, hollingworthite, erlichmanite, laurite, and stibio-
palladinite. Gold, cubanite, bornite, chalcopyrite, galena,
chromite, and magnetite are also found in the heavy frac-
tion. The material rich in Pt, Ir, and Os is inferred to
have had a magmatic origin and subsequently altered un-
der hydrothermal and near-surface (during laterization)
conditions. The minerals reported here are inferred to
have formed during the concluding part the hydrothermal
metasomatic stage.
(Pd,Ft)4Sb3
Electron microprobe analysis gave Pt 13.40, Pd 58.60,
Ir 0.15, Rh 0.20, Cu 0.75, Fe 0.05, Sb 58.60, As 0.29,
sum 98.74 wto/0, corresponding to (Pdr.o3Ptoorcuooi)", ersb3 0r,
that is, a possible Pd analogue of genkinite. The mineral
occurs as inclusions up to l0 pm in a highly fractured
grain of isoferroplatinum.
(Pd,Cu),Sb
Electron microprobe analysis gave Pt 0.91, Pd 71.30,
Ir 0.05, Rh 0.07, Cu 1.30, Fe 0.03, Sb 28.00,8i0.27,
sum 101.93 wto/0, corresponding to (PdrrrCuoor)"rnuSb, o.
The mineral occurs as inclusions up to 10 pm ln an un-
fractured isoferroplatinum matrix in which stumpflite was
also found.
(Pd,Rh),(Sb,As)
Electron microprobe analysis gave Pt 0.90, Pd 36.20,
Ir 0.03, Rh 30.50, Ru 0, Cu 0.04, Fe 0.07, As 11.90, Sb
19.70, Bi 0.36, sum 99.70 wt0/0, corresponding to
(Pdr 06Rhor2Pt00r)", eesbos.Asoor. A segregation ('20 pm)
of the mineral is enclosed with hollingworthite and sti-
biopalladinite in an isoferroplatinum grain; Ir-Os alloys
and tulameenite are nearby.
(Rh,Ir)SbS
Electron microprobe analysis gave Pt 1.90, Ir 27.00,
Rh 16.87, Ru 0.08, Fe 0.01, As 0.98, Sb 43.33, S 9.71,
sum 99.88 wto/0, corresponding to (Rho rrlro orPto or)",.0r-
Sb,or(SorrAsoo3)"0"6, that is, a possible Rh analogue of
tolovkite, with which it might form an isomorphous se-
nes.
(Ni,Fe,Rh)S
Four electron microprobe analyses of Rh-rich varieties
gave the following ranges: Pt 0.70-1.20, Ir 6.54-7.21, Rh
26.50-28.20. Fe 15.60-17.80, Ni 10.10-l1.60, Cu 4.05-
4.71, Co 0.08-l.l l, S 31.80-32.10, sum 99.72-100.39
wto/0, corresponding to (one example) (FeoroRhornNior'-
Cuo.orlro*Cooo2Pt00r)>oe4sr
06. An Ir-rich variety gave Pt
2.50, Ir 19.40, Rh 16.20, Fe 12.20, Ni 13.10, Cu 4.96,
Co 0.63, S 30.20, sum 99.19 wto/0, corresponding to
(Nio ,uFeo ,rRho ,rlro ,rCuo orPto or)- ,rS, o. per 2 apfu. In re-
flected light, brown with an olive tint. Forms segregations
up to 70 pm across in fractures and cavities in Pt-Fe
alloys, (e.g., isoferroplatinum) and encloses l5-pm crys-
tals of rhodian pentlandite. Erlichmanite and Os-Ir-Pt
alloys also are present.
(Rh,Pt Ir)r(Fe,Ni,Cu).S'
Electron microprobe analysis of a single grain gave Pt
20.66,Ir 6.14, Rh 21.23, Cu 2.48, Fe 9.40, Ni 8.55, S
29.89, sum 98.35 wto/0, correspondingto (Rho.rrPtooulro 'o-

Page 3
t2t2
JAMBOR ET AL.: NEW MINERALNAMES
Feo_r.NiourCuo,r)rr_oSoo.
The mineral occurs in an isofer-
roplatinum grain and resembles platinum thiospinels.
Discussion. Pdrsb3 has also been reported to occur in
Australia (abs. in Am. Mineral., 78, p.848 and llll,
1993). For previous reports of possible RhSbS, see Am.
Mineral.,76, 1216-1217, 1989, and 78, p. llll, 1993.
(Ni,Ir,Fe)S has been reported from the Thetford mines,
Quebec (abs. in Am. Mineral., 76, p. 1437, l99l).
(Rh,Pt,Ir)3(Fe,Ni,Cu)rS, seems to differ from the possible
Fe analogue of cuprorhodsite, FeRhrSo. X-ray study is
needed to clarifu the nature of all these unnamed min-
erals. E.S.G.
(Pd,Cu)rTer, (Pd,AgNi)rTeo, (Pd,Ni)nAs,
R. Petrunov, P. Dragov, G. Ignatov, H. Neykov, Ts. Il-
iev, N. Vasileva, V. Tsatsov, S. Djunakov, K. Don-
cheva (1992) Hydrothermal PGE mineralization in the
Elacite porphyry copper deposit (the Sredna Gora met-
allogenic zone, Bulgaria). Doklady Bulg. Akad. Nauk.,
4s(4),37-40.
The minerals occur in a fault zone up to 150 m wide
in the main bornite + chalcopyrite + pyrite assemblage
that forms the bulk of the commercial ore. The PGM and
various sulfides and tellurides occur predominantly as
grains of l-20 1rm; merenskyite (to 70 lrm) is the most
common of the PGM, and palladoarsenide is present as
fewer and smaller grains. Also present are rammelsber-
gite, with 18.45 wtolo Pd, and sparse amounts of three
unnamed minerals as follows.
(Pd,Cu),Te,
Electron microprobe analysis gave Pd 27.38,Pt 0.39,
Fe 0.64, Cu 4.55, Te 65.45, Bi 0.83, S 0.75 wto/0, corre-
sponding to (Pd, ,Cuo oFeo ,)r, o(Te, nSo r)"3 0. White with a
faint creamy tinge in reflected light, slightly anisotropic;
reflectance close to that of merenskyite.
(Pd,Ag,Ni).Teo
Microprobe analysis (some interference from chalco-
pyrite) gave Pd 16.57, Ni 3.14, Fe 0.47, Ag 16.06, Cu
1.21 , Te 61.91, S 0.65 wto/0, corresponding to
(Pd, rAg, rNiooCuo,Feo,)"...(TerrSor)"o0.
Blue- to brown-
tinged gray color in reflected light; strongly anisotropic,
with polarization colors from brown to gray; reflectance
similar to that of weissite.
(Pd,Ni,Ag)nAs,
Microprobe analysis gave Pd 61.95, Ni 1.10, Ag 1.48,
Te 1.77, As 33.70 wto/0, corresponding to (Pdrr.Nio,r-
Ag or)r, nr(As, nrTeo or)r, 0,. In reflected light, creamy pink,
moderately anisotropic, reflectance between those of py-
rite and chalcopyrite.
Discussion. PdoAs, has also been reported to occur in
the Zechstein Cu deposits (Am. Mineral., 74, p. 1219,
1989). J.L.J.
BirAuSo, (Bi,Pb)rAuSo, (Bi,Pb)uAuSo, (Bi,Pb).AuS,
(Bi,Pb)uAuS., (Bi,Au)oSr, (Bi,Au,Pb)uS.
Z.N. Pavlova, V.L. kvin, B.M. Tasov (1991) New forms
of occurrence of gold and bismuth in a copper-gold ore
deposit of Kazakhstan. Izvest. Akad. Nauk Kazakhs-
koy SSR, l99l(3), 63-68 (in Russian).
The bismuth gold sulfides occur with arsenopyrite in
low-sulfide quartz veins that cut hydrothermally altered
diorites (locally, basic effusive rocks) in northwestern Ka-
zakhstan. These sulfides, although not overly rare in this
ore type, form grains not exceeding a few micrometers in
diameter (maximum 30 x 50 pm). Bismuth gold sulfides
free of Pb are intergrown with BirTe, ,Sor, galena, native
bismuth, and gold; less commonly with lead bismuth sul-
fosalts, cosalite, and maldonite. The bismuth gold sul-
f,des, as well as the Au-Te-Bi mineral association as a
whole, formed at the end of the hydrothermal process
after arsenopyrite and the main mass of iron copper zinc
sulfides. In reflected light, the bismuth gold sulfides (ex-
cept those containing little Au) look the same and resem-
ble cosalite and bismuthinite, differing from these by be-
ing pinkish or purplish (one nicol) and brownish to reddish
(crossed nicols). Reflectances (R,, Rr) are plotted from tr
: 440 to 740 nm for Bi,AuSo, (Bi,Pb),AuSo, (Bi,Pb).AuSo,
(Bi,Pb)rAuS., and (Bi,Pb)uAuSr. Hardness suggested by
relative relief is greater than that ofjos6ite (90 kglmm,)
and galena (60-l 10), and less than that ofcosalite (160).
BirAuSo
Electron microprobe analyses (average of five, pluses
and minuses are deviations from the average) gave Bi
76.6, Au 13.8 (+0.9, - 1.7), S 9.5 (+0.4, -0.4), sum 99.9
wt0/0, corresponding to Bi, ooAuo nrSo or.
(Bi,Pb)rAuSo
Electron microprobe analyses (average of 12) gave Bi
68.0, Pb 6, Fe 0.7, Au 14.9 (+0.5, -0.6), S 9.8 (+0.3,
-0.4), sum 99.4 ,xto/o, corresponding to (Bior.Pborr-
Feo ,.)* nrAu, ooSo or.
(Bi,Pb)uAuSo
Electron microprobe analyses (average of two) gave Bi
66.0, Pb ll,Fe 1.2, Au 13.2 (+0.1, -0.1), S 8.0 (+0.1,
-0.2), sum 99.4 wto/o, corresponding to (BionrPbor,-
Feo ,r)ru ouAu, orS, ,n.
(Bi,Pb).AuS.
Electron microprobe analyses (average of three) gave
Bi 67.6, Pb 10, Fe 0.6, Au 14.3 (+0.2, -0.3), S 7.4
(+0.4, -0.5), sum 99.9 wto/0, corresponding to
(BioruPbounFeo,,)rrouAuoruSrrr.
Of the ll X-ray diffrac-
tion lines obtained with a camera, only three are given:
2.405(50), 2.07 4(100), 1.8 10(30).
(Bi,Pb).AuS.
Electron microprobe analyses (average of two) gave Bi
67.3,Pb I l, Fe 0.8, Au 13.6 (+0.2, -0.1), S 6.6 (+0.3,

Page 4
- 0. 3), sum 99 .3 wlo/o, corresponding to @io rfbo roFeo rrL rr-
Au, *Sror.
(Bi,Au)oS.
Electron microprobe analysis gave Bi 73.8, Au 4.6, S
14.9, sum 93.9 u,lo/o, corresponding to (BirrrAqrr)-orSorr.
In reflected light next to gold it resembles covellite in
being bluish gray but differs by lacking anisotropic red
colors.
(Bi,Au,Pb)uS,
Electron microprobe analysis gave Bi 78.8, Pb 4, Fe
0.7, Au 9.3, S 7.7, sum 100.5 wto/o (Co not given), cor-
responding to (Bio ,rAuo u, Pbo ,oFeo ,rCoo oo)", n, S, on. Al-
most identical to bismuthinite in reflected light.
Discussion. The low total for (Bi,Au)oS, suggests that
one or more constituents may have been overlooked dur-
ing analysis of this compound. BirAuSo and (Bi,Pb)rAuSo
have been reported from other localities (Am. Mineral.,
75, 434-435, 1990) and may be related by an isomor-
phous Bi = Pb substitution. E.S.G.
(Co,Ni,Fe,Cu)AsS
L.Ye. Gertsen, P.Ye. Kotel'nikov, Ye.Ya. Yeremeyeva
(199 l) Rare minerals of the Koksay porphyry copper
ores. Izvest. Akad. Nauk Kazakhskoy SSR, Ser. Geol.,
1.99 l(4), 5 I -58 (in Russian).
Electron microprobe analysis gave Cu 2.10, Fe 9.49,
Co 12.78, Ni 12.65, 4s44.73, S 18.51, sum 100.26 wt0/0,
corresponding to (Coo.rNio rrFeo rrCuo ou)", ,oAsS. Color is
pinkish white; isotropic. Reflectance increases monoton-
ically from 42 to 5lo/o with increasing wavelength from
440 to 740 nm, whereas that of cobaltoan gersdorffite
from Koksay is mostly 40-45o/o for 440-740 nm (reflec-
tances estimated from plots). The mineral forms tabular,
xenomorphic grains l-6 pm in diameter, intergrown with
tennantite and enclosed in chalcopyrite in copper min-
eralization in the pre-Silurian Koksay intrusion, Dzhun-
gar area, eastern Kazakhstan.
Discussion. The mineral is distinct from gersdorffite in
that Co > Ni and Co > Fe, but X-ray study is needed to
confirm the isometric symmetry and distinction from co-
baltite, alloclasite, and glaucodot. E.S.G.
Nar.rrCa".rrYr.zsREEo 24F6
Yu.K. Kabalov, Ye.V. Sokolova, A.P. Grigor'yev (1993)
Determination of the crystal structure of the new min-
eral Na, rrCao,rY,2sTRo24F6 by the Rietveld method.
Doklady Akad. Nauk, 330(6), 713-715 (in Russian).
Electron microprobe analysis (wto/o not stated) gave the
formula Na, oo Cao r, (Y, o, Lao o, Ceo.o, Pro o, Ndo or Stllo o,-
Gdo.ooTboorDyo,rHooorEro.,oYbo.or)",
onF., ideally
(Na,Ca), 5(Y,REE) r,Fu. The mineral typically forms grains
up to 0.5 mm in diameter intergrown with quartz. Col-
JAMBOR ET AL.: NEW MINERALNAMES
t2t3
orless, or locally with delicate rose color. Brittle, vitreous
luster, D-"". : 4.45 (method not specified), D"d. : 4.52
g/cm3 for Z : l. Optically uniaxial positive, e : 1.495, ot
: 1.475. Powder X-ray data and the Rietveld method gave
a : 5.9855(5), c -- 3.5469(4) A, space group P6r/m, and
structural formula Nao rr(Nao, rCao o.Yo uoCeo o, N4 o, G4 or -
Tbo o r Dyo o2Hoo o, Ero orYbo o)rFu. The mineral occurs with
riebeckite, astrophyllite, zircon, and pyrochlore in alkaline
qt:o;rtz + albite + microcline metasomatites of the Ar-
askan rare-earth deposit, south slope ofthe Sayan Range,
Russia.
Discussion. The mineral is inferred to be isostructural
with gagarinite-(Y) and related to it by an isomorphic
series NaCa(Y,REE)F.-Na, s(Y,REE), 5Fu. E.S.G.
K,(NHn)MgrCL.18H,O
M.G. Siemann (1994) Ammonium bearing carnallite
(KlNH")MgCl3.6HrOl in the salt mine Marie (Mor-
sleben). Neues Jahrb. Mineral. Mon., 97-100.
The mineral occurs as a precipitate associated with am-
monium-bearing carnallite in solution pools in the Marie
salt mine near Helmstedt, Germany. Chemical analysis
gave K 9.54, NHo 2.06,M9 8.82, Cl 39.2, (HrO)-. 39.9
wto/0, corresponding to Kr(NHo)MgrClr' l8HrO; also con-
tains 0.06-0.08 wto/o Br and about 0.150/o Rb. Occurs as
euhedral prismatic crystals, twinned parallel to elonga-
tion, brittle, conchoidal fracture, no cleavage, parting par-
allel to twinning, H : 2.5, D-*" : 1.531 g/cm3. Optically
biaxial, a : 1.480, 0: 1.482,7: 1.484. Orthorhombic
or monoclinic symmetry with P close to 90". The X-ray
diffractomer pattern has strongest lines of 3.8268(47),
3.3 1 78(100), 2.967 0(44), 2.8 I 65(4 l), 2.3464(39), and
| .9 9 9 8(23) A. .r.r,..r.
NaCaoBrO,n(OH)4'2HrO
N.A. Yamnova, Yu.K. Egorov-Tismenko, D.Yu. Push-
charovskii, S.V. Malinko, G.I. Dorokhova (1993) Crys-
tal structure of a new natural Na,Ca-hydroborate
NaCar[BnO,o(OH),] .2H,O. Kristallografiya, 38, 7l-7 6
(English transl. in Crystallogr. Rep., 38, 749-752, for-
merly Soviet Phys. Crystallogr.).
The mineral occurs with howlite and colemanite in
Miocene volcanic ash near the village of Bella Stena,
southwest of Belgrade, Serbia. Chemical analysis gave SiO,
0.12, A1,O,0.05, FerO.0.05, MnO 0.01, MgO 0.02, SrO
0.09, CaO 21.73, NarO 4.55, KrO 0.08, BrO3 60.53, HrO+
12.58, sum 99.97 wto/o, corresponding to NarO'4CaO'
9B,O..8HrO. Color white, light gray to light yellow, vit-
reous luster, translucent to transparent, H: 5.7, D-*":
2.24-2.29, D-,.: 2.34 g,/cm3 for Z: 4. Optically biaxial
negative, a: 1.532, B : 1.538, 7: 1.564,2V: 56.
Single-crystal X-ray structure study (R : 0.05 l) indicated
monoclinic symmetry, space group P2,/b, a: I1.503(7),
b : 10.53(l), c : 12.58(l) A, 'y : 99.48(7). J.L.J.

Page 5
r2t4
JAMBOR ET AL.: NEW MINERALNAMES
K-U vanadate
P. Piret, G. Hentschel, M. Deliens, E. Van Der Meersche
(l 993) A carnotitelike potassium-uranylvanadate from
the Schellkopf, Brenk, Eifel. AufschluB, 44, 291-294
(in German).
The mineral occurs as rosettes, rarely as tabular single
crystals, to 0. I mm, on the Schellkopf phonolite, or as-
sociated with phillipsite, calcite, or fluorite. Qualitative
electron microprobe analysis indicated the presence of K,
IJ, and V. Single-crystal X-ray study gave monoclinic
symmetry, space group P2,/a, a : 10.67, b : 8.283, c :
7.662 h, 0 : 102.8;the cell parameters are close to those
of M(UOr)(VO4),.4H,O compounds (M : Mn, Co, Ni)
which, however, are orthorhombic, space grovp Pnam.
Strongest lines of the powder pattem (Cu radiation, I l4-
mm camera) are 7 .47(10,001), 4.15(70,020),3.7 5(40,002),
3.6 l (30,02 l ), 3.27 (60,220), 3.r3(r0,22r), 3.0 l (608, l l 2;
probable interference from the strongest line of calcite),
and 2.836(10,221).The pattern is unlike that of carnotite.
J.L.J.
P analogue of molybdofornacite
E.H. Nickel, G.J. Hitchen (1994) The phosphate analog
of molybdofornacite from Whim Creek, Western Aus-
tralia. Mineral. Record. 25. 203-204.
The mineral occurs sparingly as tufts, to I mm, ofgeenish
yellow prismatic crystals up to 0.3 mm long and a few mi-
crometers wide. Electron microprobe analysis gave PbO 61.2,
CUO 10.5, MoO, 15.4, AsrO, 1.0, CrO3 0.8, GarOr 0.l, P,O,
9.5, (HrO)".," 1.2, sum 99.7 wto/o, corresponding to
Pb, o, Cuo n, (Moo, Aso ou Cro *Ga" o, )..r, (POo )o rn Or r, (OH),
ideally PbrCu(Mo,As,Cr)Oo (PO.)(OH). Refractive indi-
ces >2.0, length slow, high birefringence. The X-ray pow-
der pattern is similar to that ofmolybdofornacite; by anal-
ogy and refinement a : 8.05, b -- 5.91, c : 17.67 A, P :
109.7", D*" : 6.18 g,/cm3 for Z: 4' Stron1est lines (l l4-
mm camera, Cu radiation) are 3.308(100,212), 2.950
(5 0B,0 20), 2.8 | 4(40, | | 4), 2.7 26(40,20 3), 2.332(30,22O),
and 1.895(30,304). Occurs with numerous other second-
ary minerals in the gossan at the Whim Creek Cu-Zn-Pb-
Ag deposit, Pilbara region, northern Western Australia.
J.L.J.
New Data
Yingiiangite
JingyiZhang, Anwa Wan, Wenshu Gong (1992) New data
on yingiiangite. Acta Petrologica Mineralogica, ll(2),
178-184 (in Chinese, English abs.).
Chemical analysis of yingliangite from the Xiazhuang
uranium deposit, Guangdong Province, China, gave NarO
0.15, &O 3.37, MgO 0.10, CaO 2.00, MnO 0.03, Fe,O'
0.31, Tio,0.09, sio, 1.20, P,o5 10.50, uo3 75.42,H2O+
6.19, HrO- 0.25, sum 99.61 wto/o, corresponding to
K, noNao, rC% r, ([JOr)7 o, (POo)3 e3 (OH)6 16' 6.07HrO. Elec-
tron microprobe analysis and DTA gave similar results,
supporting the new formula (Kr,CaXUOr)'(POo)o(OH)6'
6HrO. Optically biaxial negative, 2V : 36-38o, d :
1.666(I), 0 : 1.703(2),7 : |.707(2). Single-crystal X-ray
study indicated orthorhombic symmetry, space group
Bmmb, a: 15.707(3), b : 17.424(3), c: 13.692Q) L;
D-.", : 4.54, D,nb -- 4'60 g,/cm3 for Z : 4. Strongest lines
of the diffractometer powder pattern (Cu radiation) are
r 0. 36( l 9, l 0 l ), 7. 89( l 00,200), 5.83(17,220), 3.94(50,400),
3. | 5 (29,20 4), 3.09 (r 4,0 5 2, 14 3), and 2.81 8(l 6,2 52). J.LJ.
Znucalite
P.-J. Chiappero, H. Sarp (1993) New data and the second
occurrence of znucalite. Archs Sci. Gendve, 46,291-
301 (in French, English abs.).
Occurs as spherules to 350 pm in diameter in the oxi-
dation zone of the Mas d'Alary uranium deposit near
Loddve, H6rault, France. Crystals are elongate [001] and
platy on (010), perfect {010} cleavage, nonluminescent,
soluble in HCl, D-..": 3.1, D*k: 3.15 g/cm3 for Z:2.
Electron microprobe analyses (range of 17) gave ZnO
51.16-56.60, CaO 3.29-3.76, UO3 r7.10-19.92. Opti-
cally biaxial negative, a : 1.556(2), B : 1.600(2), t :
1.620(2), 2Vu,: 50-60', 2V*n: 66, X : c, Y : \, /' :
a, parallel extinction. Partial single-crystal X-ray study
indicated orthorhombic symmetry, and the cell was in-
dexed with orthorhombic parameters a: 10.72(l), b:
25.16(l), c:6.325(4) A. Strongest lines of the powder
pattern are 25.2(100,010), 6.27(60,040), 6.13(70,01 l),
5.642(50,021), 2.949(50,032,122), 2.7 l8(7 0,360,280), and
2.702(90,190,271). The new cell and density lead to a
formula of CaZn,,(UO,XCO3)3(OH)','4H2O instead of the
original CaZn,(U O r)(CO3)3 (OH)r,' 4H 20 (A m. M i ne r al.,
76, t732-1733, l99l). J.L.J.
Erratum
Yol.79, p. 387: The correct name is antimonselite.