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Home , Altaite, Carlfriesite, Cesbronite, Natrophilite, Satterlyite, Teineite

American Mineralogist, Volume 64, pages 652-659, 1979

NEW NAMES*

Mlcuerl FLtrscurR, G. Y. CHno AND J. A. M,rNtnnrNo

Aleksiter Electronmicroprobe analyses, with pure Au, Ag, Cu, Fe, Te, clausthalite,and chalcopy- A. G. Lipovetskii,Yu. S. Borodaev,and E. N. Zav'yalov(1978) and Se,and chemicallyanalyzed altaite, rite as standards,of 8 spots from 2 samplesfrom Far Eastern Aleksite, PbBirTerSr, a new mineral. Zap. Vses. Mtneral. gaveAu 40.7-50.5,av 48.4;Ag 0.63-3.05,av.1.54;Cu7.43- Obshch.,107, 315-321 (in Russian). USSR 11.8,av. 9.35; Fe 0.13,0.36,av.0.19; Pb 16.7-22.5,av. 19.2,Te Electronmicroprobe analyses of 2 samplesgave Pb 20.3,20.5; Bi 18.5-22.9,av.2l.6: Se G-1.35, av. 0.34; sum 99.4, 101.7, av. 100.6Vo, 46.0,45.5;Te27.3,27 .3; S 6.3,6.3;Ag, Sb,Se not found,sum 99.9, giving the formula (AussoAgo.rz)(Cu, o.)Pb,1o(Te2 soSeo ou). ".Feo 99.6, correspondingto Pbo.erBi2rrTezo"Sr."oand PboruBirroTq.o" X-ray study gave12 lines,the strongestbeing 2.37(10)(lll), Srrn. 2.05(7X200),1.448(6)(220), and 1.232(8)(3 I I ). The patternis simi The X-ray pattern(55 linesgiven) (Fe radiation,Mn filter) has lar to that of with primitivepseudocubic cell a : 4.10A. stronsestlines 3.09( I 0)(0.l.T. l4), 2.25(4)(1.0.1.28),2.I 2(6)( I 120), The mineraloccurs in the zoneof weatheringoftelluride depos- 1.348(4X1.2.3.14),1.307(4X1.1.2.48). This indicatesa cell with its of the Far EasternUSSR and Kazakhstan,associated with a = 4.238,c : 79.76A,Z : 6, G calc7.80. telluridesof Au, Cu, Pb, and Fe, as rims on Au, and replacing The mineraloccurs as platy grains up to 1 mm in sulfide- sylvaniteand krennerite.It had previouslybeen called rickardite, veinsat Alekseevmine, Sutamskii region, Stanovoi Range, USSR, which it resemblesin opticalproperties. with ,gold, altaite,tetradymite, rucklidgeite, and other tell- Thecolor is light brown,rose-brown, luster semi-metallic, urides. perfect, {0001}. Hardness (20 g load), av. of 6, : gold-brownto brown.No cleavages.It polisheswell and easily.In 5l+8 kglsq mm. Relieflow, polisheswell. In reflectedlight pale reflectedlight, blue-violetto beige-cream.Reffectances are given at gray with slight greenishtint, weakly anisotropic.Reflectivity is l5 wavelengthswith Rg and Rp, respectively,for 2 samples:460 givenat l5 wavelengths. Rg : 460,51.4; 540,53.2;580, 53.4;640, nm, 13.4-14.5,10.2-10.7; 540 nm, 21.5-23.2,4.5-6.8;580 nm, 54.2Vo. 25.0,28.1,6.1-12.0;640 nm, 23.9-30.7,8.5-36.5Vo;theoptical sign The name is for the mine. Type material is preservedat the changesat 620 nm. Hardness(load 20 g) 329-419,av. 381kglsq MoscowGosudarst Universitv. M.F. nm. The nameis for the Sovietgeologist Yuri A. Bilibin ( 1901-1952). Type materialis preservedin the MineralogicalMuseum, Acad. Altmarkite, unnamedHg-Pb analgam Sci.USSR. Moscow. and at IMcns.Moscow. M.F, T. Kaemmel,E. P. Muller, L. Krossner,J. Nebel,H. Unger,and H. Ungethum(1977) Altmarkite, a new mineral (preliminary report).Z. angew.Geo|.,23,535-536 (in German). Canavesite* Metallic depositson installationsof the natural gas plant at G, Ferraris,M. Franchini-Angela,and P. Orlandi(1978) Can- Altmark, EastGermany, contained Hg and Pb. HgPbr,containing avesite,a new carboboratemineral from Brosso,ltaly. Can. Hg27-36,Pb73-64atomic percent, has strongest X-ray lines 2.78, Mineral..16.69-73. 2.49,1.67 A, correspondingto synthetictetragonal HgPb, with a = occursas milky-whiterosette-like aggregates of fi- 2.52,c : 4.53A,G : 12.1, H : 2, silver-whiteto gray.It is named The mineral ludwigiteand magnetiteskarns in the altmarkite for the locality. Also presentis an unnamedHg-Pb bers1-1-rn long) on Brosso,Province of Torino, Piedmont,Italy. The slightly amalgam,Hg 20, Pb 80 atomicpercent, cubic, Fm3m, a : 4.87A, mine of are very thin and elongatedparallel to have strongestlines 2.80, 2.43, 1.73A, G = 11.8. flexiblefibers [010], vitreousluster, and do not fluoresceunder ultraviolet light. G meas Discussion about 1.8, calc l.'79. Very rare crystalsshow pseudohexagonal Data inadequate.It is not clearwhether the material is of natural prismatic habit. One or more {iOl} cleavagesor partings were = : origin or an artefact.M,F. observed.lt is biaxial(+), 2V is verylarge, Z b, a 1.485(4),B = 1.494(4),7: 1.505(2),dispersion very weak. Canavesiteis monoclinicwith a spacegroup having a diffraction Bilibinskite* symbol2/mP-/-. The X-ray powder diffractionpattern was in- -- : : E. M. Spiridonov,M. S. Bezsmertnaya,T. N. Chileva,and V. V. dexed using a: 23.49(2),b 6.164(6),c 21.9r(2)A,B Bezsmertny(1978) Bilibinskite, AuaCurPbT€2, o n€w mineralof I 14.91(9)'.The strongestlines (average for FeKa and CuKa) are: gold-telluridedeposits. Zap. Vses.Mineral. Obshch.,107,310- e.54(100x202),8.l2(40x201 ), 7.80(18x102,301), 4.56(21 ) (501,503), 315(in Russian), and3.110(19X407). Chemical analyses(two completeand one partial) gave the followingaverage values: MgO 31.60,BrOs 12.'10,CO, 18.57, HrO * marked with asterisks were approved before pub- 37.44,total 100.31wt.7o. On the basisof elevenoxygen ions, the lication by the Commission on New Minerals and Mineral Names empirical formula calculatedfrom thesedata is Mgzos(COr),.." of the International Mineraloeical Association. (HBOr)oil.4.9lHzO or, ideally,Mg(CO'XHBO').5H,O. w03-004x / 79 /0506-06s2$00. 50 652 NEW MINERAL NAMES 653

The nameis for the district,Canavese, in whichthe villageand Color green,H : 3, brittle.In thin sectionrich green.Under the mine of Brossooccur. Type materialis depositedin the Museo microscopea good cleavageon {021}and a poor one {l0l}. Opti- Civico di Storia Naturale di Milano. Some"nesquehonite" col- cally biaxiaf,positive, ns (Na, 22'C) a : 1.880,B : 1.928,7: lectedfrom this localitysince 1973 is in realitycanavesite. J.A.M. 2.029(all +0.008),2V : 72' (calc),X : a. Pleochroicwith X pale bluish-green,Y rich yellow-grcen,Z deepemerald green, abs. Z - Cernfite* Y >> X. Dispersionmoderate, r ) u. The mineraloccurs in crystalsup to 0.5mm elongatedon a, with S. A. Kissin,D. R. Owens,and W. L. Roberts(1978) Cernyite, a terminationsshowing d{103} and n{180}.It occursin veinsof the -cadpium-tinsulfide with the stannitestructure. C4n. Bambollita mine near Moctezuma,Sonora, Mexico, associated Mineral., 16, 139-146. with electrum.. and . Cernyite(CHARNI .AIT) is a rareconstituent of two complex, The name is for Fabian Cesbron,French mineralogist.Type is Museum NaturalHistory, London, zonedpegmatites in the Tancomine, Bernic Lake, Manitoba, and material at theBritish of and Paris. the Hugo mine,Keystone, South Dakota. It occursas small grains at the Universityof M.F. (up to 200pm)intetgrown with kesterite.Associated minerals are stanniteand variousother sulfides.It is steelgray, luster metallic, Donnayiter streak black. H is about 4; no cleavagesor crystal forms were observed.Density could not be measured;calculated density for G. Y. Chao,P. R. Mainwaring,and J. Baker(1978) Donnayite, Tancoand Hugo minespecimens is 4,776and 4.618 g/cm8, respec- NaCaSrrY(CO3)0.3H?O, a newmineral from Mont St. Hilaire, tively. The microindentationhardness (VHN6.) is 189for Tanco Quebec.Can. Mineral., 16, 335-340. material and 210 for Hugo material.In reflectedlight (in air), This mineralformerly designated "UK33" occursin smallquan- dernj'iteis medium gray and is not readily distinguishedfrom titiesin the pegmatitedikes, miarolitic cavities, and intersticesin kesterite.Bireflectance is imperceptible,and anisotropyis very the nephelinesyenite at Mont St. Hilaire, Quebec.Associated weak,in shadesofgray. Under oil, [ernj'iteis distinctlybireflectant mineralsare microcline, analcime, natrolite, , chlorite, aegi- from creamygray with a yellowishtinr to very light gray and is rine,arfvedsonite, siderite, , ancylite, , sphaler- anisotropicin shadesof gray. Reflectancevalues (Tanco and ite, ,goethite, pyrophanite, catapleiite, gaidonnayite, and Hugo) are: 470nm(24.6 and 25.5),546nm (23.4 and 25.6),589nm astrophyllite.Donnayite is commonly in syntacticintergrowths (22.3and 25.0), and 65onm(22.7 and 24.3). with ewaldite,a Sr-analogof ewaldite,mckelveyite, and rarely Tlle mineralis tetragonal, 142m, Z : 2, a = 5.5330 synchysite.The crystalsare usuallysmall, from 0.05 to l.0mm,, andc : 10.82664(Tanco), a : 5.4871and c : 10.8454(Hugo). rarely2.0mm. The color is usuallypale yellow to yellow,but some Strongest X-ray lines (for CoKa) are: 3.167(10)(ll2), crystalsare colorless, white, gray, and rarelyreddish-brown due to | .e54(4)(220), r .93e(7 r .662(5)(132),and l .63e(4 I I 6 fo r )(024), )( ) hematiteinclusions. The mineralhas a white streakand is trans- Tanco6ernj'ite. parentwith a vitreousluster, although the white andgray varieties Electron microprobeanalyses of Hugo and (Tanco) material areopaque and earthy. The hardnessis about3 andan indistinctto gave:Cu 28.1(26.5),Ae -(0.20), Fe 3.6(l.l), Zn 4.9(2.0),Cd fair basalcleavage is present.G meas: 3.30(l), G calc: 3.266. 9.3(18.2),Mn 0.06(n.d.),Sn 26.3(24.9),Sb -(n.d.), S 28.s(26.9), The mineraldissolves rapidly in l: I HCI with strongeffervescence. total 100.8(99.8).These data yield the followingempirical formulas Optically,donnayite is biaxial(-), = 1.551-1.561(2),B : (based on a total of 8 atoms): Cu, rr(CdorrZno.rrFeo r"Mno or) " 1.646(2),1 : 1.652(2),2V varies0o to 20owith 5" to l0o the most Sn,ooS. eq (Hugo) and (Cu, *Ago.or)(Cdo.rrZno,.Fq.ro)Sn,o,S, "" common values.The X principalvibration directionis approxi- (Tanco).The ideal formula is CurCdSnS.. matelyparallel to c*. The nameis in honor of Dr. PeterCern! of the Universityof Donnayitecrystals display apparent trigonal or hexagonalsym- Manitoba.Type specimensare preservedin the collectionsof the metry with habitsvarying from platy, tabular,saucer-shaped, col- RoyalOntario Museum;National ReferenceCollection, Geologi- umnar, barrel-shaped,to irregularlygranular; some crystals are cal Surveyof Canada;Museum of Geology,South Dakota School hemimorphic.Single-crystal X-ray studyshows that the mineralis of Mines and Technology;National Museum Natural of History, triclinic,pseudo-rhombohedral, and isomorphous with weloganite. SmithsonianInstitution; CrystallographyLaboratory, Mineral Thespace group is Pl, a : 9.000(1),b : 8.999(l),c : 6.793(l\A, SciencesLaboratories, ClNmer; and Departmentof Earth Sci- a : 102.77(l)",8= 116.28(l)',y : 59.99(l)',Z = L StrongestX- ences,University of Manitoba. J.A.M, ray lines (for CuKa) are: 6.103(4)(001),4.368(7X120 etc.), 3.209(3)(r2r etc.), 2.839(l0X21l etc.), 2.598(4X030etc.j, * 2.038(3X310etc.), 2.018(3X420etc.), 1.978(3X032etc.), 1.916(3)(241 (etc S. A. Williams (1974)Cesbronite, a new copper from etc.), and 1.694(3X150etc.) refersto otherhkl Moctezuma, Sonora.M ineral. M ag., 39, 744-7 46. designationsfor thesed-spacings. JAM). Most donnayitecrystals are twinnedaccording to the following twin laws:rotation about Electronmicroprobe analysis by R. F. Symesgave Cu 49.4,49.8, ll03luo";reflection across (010), (30T), or (331). 50.3,av. 49.95;TeOz J9.3, 39.2,38.6, 38.6, av. 38.92Vo,Penfield Electronmicroprobe analysis of a crystalfree of syntacticinter- determination gave ll.l%o HrO, corresponding to growthsgave: NarO 3.37,CaO 5.75,BaO 0.85,SrO 35.8,YrOg Cur(TeO')r(OH)62HrO.The mineralis readilydissolved by cold or 13.1,Nd,Os 1.83,LazOs 0.45, CO, (30.98),H,O (6.34),total warm 1:l HCI and HNO', inso[.in HrO or 40EoKOH. (98.47).Values of COz and H,O werecalculated on the basisof Weissenbergand rotation photographsshow it to be ortho- 6(CO'X- and 3HzOper formulaby analogywith weloganite.The rhombic,space group Pbcn, a : 8.624,b = 11.878,c = 5.872(all data give an empirical formula (basedon 2l oxygenions) of +0.016,4'),Z : 2,G calc4.455, G meas4.45*0.2. The strongest X- Nao*(Cao o"La",ogxSr2_rrBao.or)Yo,r(COr)'.3HrO, which cor- "tNdo ray lines (18 given) are 5.934(100X020),4.889(71X120), respondsclosely to the ideal formula NaCaSrrY(COs)6'3HrO. 3.4e0(e2)(220),2.37 e(38)(2t2), 2.358(70X032). Donnayite is isomorphouswith weloganite,NarSrsZr(CO').. w03 -004x / 79 / 0s06-o65 3$00. s0 654 NEW MINERAL NAMES

3HrO, and mckelveyite,NaCaBarY(COs)o.3HrO. The name is Cu-Ni alloys,platarsite, ruthenarsenite, stibiopalladinite, mertieite for ProfessorsJ. D. H. Donnay and G. Donnay. Type material II, and an unidentifiedPt-Pd-Rh oxide from the Onverwacht is preservedin theNational Museumof Natural Sciences,Ottawa, mine, Transvaal.In polishedsection in air the mineral is pale and the Royal Museum,Toronto. J.A.M. brown or tan with a yellowishtinge and moderatelyto strongly anisotropicfrom grayto brown.In oil theyellowish tinge is absent, Friedrichite* somegrains are weakly bireflectant, and anisotropismis moderate to strong.Reflectances in air in percentare: 470nm, 52.55 and 51.7; (1978) T. T. Chen, E. Kirchner and W. Paar Friedrichite, 546nm.54.05 and 53.5: 589 nm, 55.25and 54.6; 650 nm, 56.5and CuuPboBirSro,a new memberof the aikinite-bismuthiniteseries, 56.2.Micro-indentation hardness is VHNzo = 603(578-612)for Can. Mineral.. 16. 127-130. one grain and VHN26: 677(627-697)for anothergrain. The mineraloccurs as isolated crystals or asgranular aggregates Genkinite is tetragonal;space group not determinedbut is in = : = (0.2mm to l.5mm) in "head-sized"vein-quartz boulders. Frie- Laue classP422; a 7.736c 24.161A,Z 8. StrongestX-ray drichitegrains are commonlyaltered to ,a hydrous(?) lines (Fe-filtered, Co-radiation) are: 3.020(9X025,008), Cu-Bi sulfate, and a hydrous carbonate-sulfateof Bi. Trace 2.26s(l0xr34),1.934(6XOl0), 1.910(sX02.l 1), 0.9043(sBX26.18), amounts of chalcopyrite,covellite, chlorite, and mica are also and0.9025A(58X382). grains present.The boulderswere found in the screesof a landslip,below Resultsof electronmicroprobe analyses of eight are the well-knownemerald deposit of the "Sedl" regionat the east given.The datafor thegrain usedfor X-ray diffractionstudies are: sideof the HabachValley, Salzburg, Austria. ft 47.3,Pd 14.1,Rh 1.5,Ni 0.06,Cu n.d.,Sb36.l, Bi 0.49,As0.27, Although a megascopicdescription is not given, friedrichite total99.82wt.7o. This givesthe followingempirical formula (based presumablyis similar in appearanceto other membersof the on 7 atoms): (Pt2.uPdls.Rhg r6Nio or)>3 95(Sbr rrAso oaBio o2)r, or. aikinite-bismuthiniteseries. In polishedsection it is creamyyel- Ideally,this is (Pt,Pd).Sb'with Pt ) Pd, and it is thoughtthat the lowish-whitein air, more pinkishin oil. Bireflectanceis moderate Pd is essential.The densitycalculated for the empiricalformula is in air and distinctin oil: from creamyyellowish-white with a pink 9.256g/cml. tint to pinkish gray-white or light bluish yellow-white.Ani The nameis in honor of Dr. A. D. Genkin,Soviet mineralogist. sotropismis distinctin air and strong in oil. Reflectancevalues, Type materialis in the Royal Ontario Museum(Toronto), Smith- maximum-minimum, and (average) are: at 470nm, 46.7- sonian Institution (Washington),Mineralogical Museum of the 41.0(U.2\;at 546nm,46.2-40.1(43.5); at 589nm,a5.8-39.9(43.0); Academy of Sciences(Moscow), and Pinch MineralogicalMu- and at 650nm,45.6-39.9(42.9). Microindentation tests on seven seum(Rochester). J.A.M. grainsgave VHNuo = 201to 244(av. 224).Etch tests:HNO3 (l : I ) burns with effervescenceand darkens surfacewithin seconds; Hydrodresserite* FeCL(207o)gave a light brownstain; HCI (l: l) gaveno reaction. Precessionstudy showed friedrichite to be a new superstructure J. L. Jambor,A. P. Sabina,and B. D. Sturman(1977) Hydro- of the aikinite-bismuthiniteserieswith: a : 3 X I 1.28: 33.84,, : dresserite,a new Ba-Al carbonatefrom a silicoearbonatitesill, 11.65,c : 4.01A,Pb** (Pb2,m).The strongestlines in the X-ray Montreal Island,Quebec. Can. Mineral., 15,399-404. powder diffractionpattern (in A for CurKawith I l4.6mm diam. The mineral occursas white spheresand hemispheresabout Debye-Scherrercamera) are'. 4.05(4X620), 3.644(10X330), 2mm in diameterwhich consistof radiatingfibrous crystals. Crys- 3.584(l0X3ll,9l0), 3.161(10X321,611),2.8s0(8X621), tals are colorless,streak white, luster vitreous, H 3 to 4, and two 2.si7 (4)(640), and 1.979(4)(3sl, I 2.3.1,950). perfectcleavages, {010} and {2T0}.The measureddensity is 2.80g/ Electronmicroprobe analyses of six grainsgave the following cm8.The mineralis biaxial(-), : 1.501(3),B = 1.594(l)"y : " averages:Cu 9.1,Pb 29.7, Bi 44.2,S 17.2,total 100.2.The empirical 1.595(l),2V 17(l)";orientation: X(065", p88'), (d -27", p46"), formuladerived from thesedata for 365 atomsis Cue61Pbr..rBi'1 '" Z(Q158-l/4",p44-l/4'). Hydrodresseriteis triclinic (spacegroup Sr..The structuralcell formulafor the aikinite-bismuthiniteseries not given)with a : 9.77,b = 10.45,c = 5.66A,a = 95'42',0 = can be representedby Cu,Pb,Bir,-,Srr,where z is the multiplierof 92"22', 1 : 115"47'.Least-squares refinement of the powder- the a parameterof aikinite.The valueof z for friedrichiteis 3 and diffractiondata gave a = 9.79,b : 10.42,c : 5.66A, a = 96.05",0 thus the idealformula is Cu,oPbrBi,.Sr.(this formularequires Cu : 92.20","y = l | 5.71" . StrongestX-ray lines(CuKa radiation) are: 9.36,Pb 30.53,Bi 43.11,S 17.00,total 100.00wt.7o, JAM). G 8.7s(4X 100), 8.s2(I 0X I t0), 4.26(s)(220),3.42(7 )(2r0, I 30), and meas: 6.98,calc : 7.06. 3.10(6X030,21T).Crystals are elongatedparallel to [001] with The name is in honor of ProfessorEmeritus Dr.-lng. O. M. forms {010},{2T0}, and {102}.with Z = 2,thecalculateddensity is Friedrich,Mining University,Leoben, Styria, Austria. Type mate- 2.79 g/cm" (empiricalformula) and 2.81 g/cm'3(theoretical for- rial (quantitynot stated)is preservedat the Instituteof Mineral- mula). ogy, Universityof Salzburg,Salzburg, Austria; Museum of Land- Chemicalanalysis gave BaO 35.0,Alros 23.7,COr 2l.8, HrO eskunde Joanneum, Graz, Styria, Austria; Royal Ontario 20.3,total 100.8wt.7o. This yieldsan empiricalformula (based on Museum,Toronto, Ontario, Canada; and SmithsonianInstitution, l3 oxygenions) of BaorrAlrrr(COs)r'r(OH)s.60'2.97H2O.This is Washington,D. C., U.S.A.J.A.M. essentiallyBaAt(COs)dOH)r.3H,O which requiresBaO 35.38, A12o823.52,CO' 20.31,H'O 20.79,total 100.00wt.7o, Genkinitet Hydrodresseriteloses water readilyeven at room temperature and breaks down at least in part to dresserite, L. J. Cabri,J. M. Stewart,J. H. G. Laflammeand J. T. Szymanski BaAL(COg)z(OH)..HrO.In a few casesthe dehydrationproduct is (1977) Platinum-groupminerals from Onverwacht.III. Gen- not dresserirebut is believedto be BaAL(CO8)r(OH)..2H2O.De- kinite, (Pt,Pd).Sbg,a new mineral.Can. Mineral., 15,389-392. tailsof the DTA-TGA runsare given. Genkiniteoccurs as irregular grains from lessthan 5 micronsto The mineraloccurs in an alkalicsill in the FranconQuarry at St. about 165x165microns. It is associatedwith sperrylite,Pt-Fe- Michel, Montreal Island,Quebec. The nameis in allusionto its ffi03 404X /'.t9 /0506-0654$00. 50 NETY MINERAL NAMES

relationshipto dresserite.Chemically it is the barium analogof The mineral occurs in a gahnite-chlorite-coronadite-quartz alumohydrocalcite,but otherwisethe two mineralsare not related. schist near Kanona, Zambia. The name is for the locality. Type Type material is depositedin the Royal Ontario Museum,To- materialis at CharlesUniversity, Prague. M.F. ronto, and in the National Mineral Collection,Geological Survey of Canada.Ottawa. J.A.M. Kleberite Hans-JoachimBautsch, Georg Rohde,Paul Sedlacekand Achim Jokokuiter Zedler (1978\ Kleberite, a new iron-titanium oxide from Ter- tiary sands.Z. geol. lliss., 6, 661-671(inGerman). Matsuo Nambu, Katsutoshi Tanida and Tsuyoshi Kitamura (1978)Jokokuite, MnSO..5H2O, a new mineralfrom the Jok- Achirn Zedler,Paul Sedlacek,Georg Rohde,and Hans-Joachim oku mine, Hokkaido, .Mineral. J. (Tokyo),9,28-38. Bautsch.First resultsof structuredetermination of a new min- eral of the TiO, type. Ibid., 673-679(in German). Analysisgave MnO 27.34,FeO 1.13,ZnO 0.94, MgO, CaO none, SO, 33.06, HrO 37.68,sum l0f..l|Vo, correspondingto Electronmicroprobe analyses gave for grain l, Roda,Ti 44.5,Fe (Mno.r.rFqosrZno.or,)(SO.). 5.07HrO, or MnSO..5HrO. DTA and 7.9,Si 1.2,Cr 0.2,Ba 1.7,Ca0.4,Mg0.l; forsevengrains,Ti40.5- TG curvesare given. The DTA curve showsweak endothermic 46.6,Fe 7.0-10.6,Si 0.9-1.3,Al 0.3-1.1,Ba 1.2-1.8,Ca 0.4-0.8,P peaksat 60o, 83o, and 890', strong endothermicpeaks at 140o, 0.2-0.3.The first analysisand the averageof theseseven respec- 328', and 1032'C.The breakat l40o correspondsto dehydration tivelygave TiO,74.4,71.7; FeO 10.2,ll.3; SiO"2.6, 2.6; Al,O,-, to MnSO..HrO, that at 328oto MnSO., that at 1032.to lossof 1.3;CrrOs 0.3, -; BaO 1.9,1.7;CaO 0.6,0.8;MgO 0.2,-; P,O5-, SOs.The final productat 1080' consistedmainly of . 0.5;HrO (by ignition at 1050')9.3, 9.3Vo. These give the formulas: The mineralis readilysoluble in HrO. It dehydratesto ilesiteat (FeorrtBao otrCao ot.Mgo.oo.XTit t"Sio.ouuCro oou)(OH)t rrOr.or, and 20oCand 507ohumidity. (F%rosB& orcCao oBXTi, r€Sio .E6AL orsPo omXOH)r r*Or.*u. This is X-ray powderdata aregiven (50 lines)(FelMn radiation).The givenin the secondpaper as approximatingFeTi"Ors.4HrO. The strongestlines are 5.84(100X100),5.66(56Xll0), 4.98(6tXltT), stateof oxidationof Fe is not known.DTA and TGA studyof an 3.2 8(2 5 X I 1 I ), 2.727 (7 2)(1 | 2,13q, 2.2s0(27)(032), | .622(3| )(3I | ). impure samplecontaining much ilmeniteshowed continuous loss The data areindexed on a tricliniccell with a : 6.37,b : 10.77,c of HzO above250", but no thermaleffects up to 900oC. = 6.13A,a : 98"46',0 : 109'58',1 = 77"50',Z = 2; G 2.094 Weissenbergand precessionmeasurements Eave a : 2.8542,b = calc,2.Oimeas. By analogywith the very similarchalcanthite and 4.9M8, c = 4.5857A,a : 0 : ? : 90o. Sincea 14 = 4.9436, siderotil,the spacegroup is probablyPT. nearly : b, the mineralis consideredto be hexagonalwith space Color pale pink, streak white, luster vitreous;H about 2.5. group P6"mcm."The experimentallydetermined density 3.26 g/ Opticallybiaxial, neg.,2V : 70-80", dispersionvery weak,a = cm8,can only be madeto agreewith the X-ray volumeof the unit 1.498,P : 1.510,,y = 1.517(all +0.003).No cleavage. cell(64.724") if theratio metal(Ti+Fe): oxygenis about l:3." The The mineraloccurs as stalactitesin the Jokoku mine,SW Hok- strongest lines (10 given) are 2.456(3), 2.156(6), 1.672(10), kaido, along with gypsum, szmikite,ilesite, rozenite, siderotil, 1.420(6).They are not indexed. ferrohexahydrite,mallardite, melanterite, and goslarite.lt appar- Color dark brown to black. H : 4 to 4y2.Density variable ently wasdeposited directly from mine watersat about25.C. The (rangenot stated),av. 3.28 (givenas 3.26 in the secondpaper). oresat the mineconsist mainly of rhodochrositewith lesssphaler- Optically uniaxial,neg.; a few grainsare biaxial,neg., refractive ite, galena,pyrite, marcasite and others. indicesmuch higher than 1.80.Reflectivity variable 12-14.3,av. The nameis for the mine. Type materialis at Tohoku Univer- 13.57o,corresponding to meann2.162, range2.060-2.238. Birefrin- sity, Sendai.M.F. gence0.04-0.05. The mineralwas separatedby heavyliquids, magnetic separa- tion, and hand-pickingfrom Tertiary sedimentsof the western Kanonaite* Weisselbasin, East Germany, amounting to lVoof thetransparent S. Vrana, M. Rieder and J. Podlaha (1978) Kanonaite, heavyminerals near Borna,30-35Vo near Konigshain. (Mn8o!.Alo*Fe3o+02)r0rAlr6r[O](SiO.), a new mineral isotypic with The nameis for ProfessorWill Kleber(1906-1970) of Humboldt andalusite.C ontrib. M ineral. Petol., 66, 325-332. University,Berlin. Microprobeanalysis at 24 points,using analyzed pyroxmangite, Discussion andalusite,kaersutite, barite, galena, MnrO., Cu, and Zn as stan- A thoroughlyunsatisfactory description. M.F. dards,gave SiOr 32.2,TiO, 0.01,Alros 33.9,FezO, 0.66, MnzO" 32.2,MgO 0.04,ZnO 0.13,CuO 0.01,CaO 0.01,BaO 0.04,pbo 0.01, sum 99.21Vo.There was slight zoning; the MnrOg conrent Mari6ite* rangedfrom 27.6to 32.6Vo. X-ray study showedthe mineral to be orthorhombic,space B. D. Sturman,J. A. Mandarino,and M. L Corlett (1977)Ma- groupPnnm, a : 7.953,b = 8.038,c : 5.619,4,Z = 4;G calc: ri6ite,a sodiumiron phosphate,from the Big Fish River area, 3.395. The strongest lines (39 given) are 5.669(l00Xll0), Yukon Territory,Canada. Can. Mineral., 15,39G398. 4.5e0(75Xorr, r0l 3.s87, 3.s67(m)0202t0), 2.827(94)(220), ), Y. LePageand G. Donnay(1977)The ofthe new 2.299(69)(022,31t), 2.2t2(83)(320,122,2t2). mineralmari6ite, NaFePO.. Can. Mineral.,1J, 518-521. The mineralis greenish-black,streak gray-green, luster vitreous. H = 906-1017kg,/sq mm, Mohs : 6.5.Optically biaxial, positive, The mineraloccurs as sub-parallel to radiatingelongate grains in a = t.702,0 = t..130,"y = 1.823,X = a : yellow_green,y = b : nodulesfrom shalesalong the Big Fish River, Yukon Territoryat : bluish-green,Z c : deepgolden yellow. Cleavage {I l0} poor or about lat. 68'30'N and long. 136'30'W.Associated minerals are: imperfect.Infrared data are given. quartz,ludlamite, vivianite, pyrite, wolfeite, a memberof the apa- 0003404x / 79 /0506-065 5$00. 50 656 NEW MINERAL NAMES tite group, a memberof the varulitegroup, and satterlyite.Ma- heat-treatedproduct are similar to thoseobserved on the natural ri6ite(pronounced MA.RICHAIT) is colorlessto gray and pale mineral(0.636: I :0.550, 64" 46', 84"36' ). brown,vitreous, transparent to translucent,non-fluorescent under The natural mineral is fully metamictand is black with dark UV light, streakwhite. There is no cleavage;H 4 to 4Vz,G meas brown to black streak,adamantine luster, and conchoidalfrac- 3.66(2)3.64 g/cm8. Mari6ite is biaxial (-), 2V meas43Vzo, calc tures. VHN (100-2509) 515-532. n(Na) 2.328, reflectance : 43o,a : 1.676(2),P= 1.695(2),7: 1.698(2),dispersion weak r ) (589Mp) 15-l7Vo.Z = 2; G calc: 5.46,meas 5.46.The mineral u, non-pleochroic,X : a, Y : b. is grayishwhite underreflected light with a reddishbrown internal The elongationof grains is [00], and LePageand Donnay reflection.It is non-fluorescentin UV and is stronglyradioactive. recognizedthe following forms: {010}, t0ll}, t0l2},and {032}.The After heatingto 1000'Cthe mineralbecomes brownish-green on mineralis orthorhombic,space group Pmnb, a : 6.867,, : 8.989, thin edges,giving brownish-yellowstreak with a green tint. c = 5.0494, Z : 4. Strongest X-ray lines (CuKa) are: VHN(50-100g) 542-546.Reflectance 16.6-17.8Vo. The mineralis 3.705(40Xl r r ), 2.729(e0)(220), 2.707(80X2 l l ). 2.s74(100X03 l ), not attackedby HCI and HzSO.but dissolvesin warm H:SO. and 252s(30)(ffi2),1.88 I (30X240),and 1.8s3(60)(222). HsPO.. The averagevalues of six electronmicroprobe analyses are: Infrared spectrumshows a strongbroad band at 546cm-'and Na,O 16.5,MgO 0.8,CaO 0.0, MnO 3.1,FeO 37.4, PzOo 42.5, total severalweak HzO and OH bands.TGA showsa two-stageweight 100.3wt.7o. The formula(based on four oxygenions) derived from fossat l04o and 200-400'with a total weightloss of | .5Voat 460"' these data is Na" rt(Fq r"Mno.orMgo.or)P1e2O..ee or ideally followedby a weightgain of l.lVo(oxidation) at 500-800'C.DTA NaFePO..Although the formula is similar to thoseof triphylite showstwo weakendothermic breaks at 100and 340oand a strong (LiFePO.),natrophilite (NaMnPO.), and (LiMnPO.), exothermicbreak at 620oC(recrystallization). its structureis different. The mineralwas first foundin theweathering residue of a biotite The nameis for ProfessorDr. LubaMari6, long-timehead of the pyroxenesyenite in Yunan,China. It waslater also identified, from Departmentof Mineralogyand Petrology;University of Zageb. its heat-treatmentproduct, in an alkaliclamprophyre in Szechuan, Type materialis preservedin the RoyalOntario Museumand the China. Mineralosko-PetrografskiMusej in Zagreb,Yugoslavia. J.A.M. Discussion The nameorthobrannerite is a poor choicefor the mineral,as Orthobrannerite the nameimplies an orthorhombicpolymorph of brannerite.The X-ray Laboratory,Peking Institute of Uranium Geologyand X- ideal formula of the mineral is better written as U6+U4+ : ray Laboratory, Wuhan Geological College (1978) Ortho- Ti.O',(OH),, with Z l. G.Y.C. brannerite-a new mineralof the branneritegroup. Acta Geol. Sinica,24l-251(in Chinesewith Englishabstract). Parakeldyshite* Chemicalanalysis gave UO, 28.75,UOs 31.08,ThO, 1.03, G. Raadeand M. H. Mladeck(1977) Parakeldyshite from Nor- TR,O' 0.28,CaO 0.44,PbO 0.17,TiO, 35.35,FqO' 0.40,NbzOu way. Can.Mineral., 15, 102-107. 0.19,TazOo 0.01, SiO,0.65, H,O+ l.ll, H,O- 0.76,sum 100.22 wt7o, correspondingto (U3.+cU6.+sCaoooTho orTR0.0r)(Tir.r"Fq_0, The mineraloccurs as irregular cleavage masses up to severalcm Nboo,)Ouol(OH)oes,or simply (U3iU6i)TirO"(OH). Electronmi- in sizein nephelinesyenite pegmatites which transecta foyaiteat croprobeanalysis gave U 58.40,Ti 20.16,O 20.85,sum 99.41 wt7o. Bratthagen,Ligendalen, near Larvik, .Associated miner- Semi-quantitativespectrographic analysis showed Mg 0.5, Al als are alkali feldspar,nepheline, aegirine, pyrophanite, loparite, 0.05,Y 0.03,Ce 0.01wtTo and tracesof Ba, Be,Mn, Sn,Cr, Ni, Bi, and biotite.In other partsof the pegmatitedikes are astrophyllite, Yb, Cu, Ag andCo. catapleiite,ramsayite, analcime, and zeolites.Minor mineralspres- Crystals(6-8 X l0-l2mm) are prismatic,bounded by {001}, ent areboehmite, genthelvite, , barylite, hilairite, ancylite, tl20l, t02ll, {ll0}, {l 0}; somecrystals show additional{210}, and someunidentified phases. [80], and a form with uncertainindices. The prismaticfaces are Parakeldyshiteis white with a slight bluish tinge,translucent, striatedalong c. Optical goniometryshowed the mineral to be and vitreous.It fluorescesa strongcream color in short-waveUV orthorhombicwith a:b:c= 0.636:l:0.550. The mineralwas studied light and a very weakcream color in long-waveUV. H : SVzto 6, by X-ray after heat treatmentto 700-1100'C.After heatingto G meas3.39, calc 3.40E/cmg. Three cleavages result in a pseudo- 700"Cthe mineralgave an X-ray powderpattern similar to that of rhombohedralaspect; the cleavagesare {001}perfect, {ll0} and heat-treatedsamiresite. After heat treatmentto 1000"Cthe X-ray {l l0} somewhatless perfect. The acuteangles between these planes powderpattern is similarto that of syntheticUTiOo and is totally are all between76" and82o. There is alsoa goodcleavage parallel comparableto that of "phaseX," a heat-treatmentproduct of to {0ll}. The mineralis polysyntheticallytwinned on (100).The branneriteat 900oC[Krivokoneva, Zap. Vses.Mineral. Obshch., color and polysynthetictwinning give the mineralthe appearance I0l,254-267 (1972),Mineral. Abstr., 26, 190(1975).1 The powder of a plagioclasefeldspar, but it is quicklydistinguished from these pattern(1000'C) is indexableon the basisof the orthorhombiccell by its fluorescenceand by its very pronouncedweathering on of "phaseX" witha:7.37,b: 11.67,c: 6.334.Thespacegroup exposedsurfaces. Parakeldyshite is biaxial(-),2V meas84o, calc P2r22 predictedfor "phase X" could not be ascertained.The 88o; nearc, X nearb,. Z neata; a' = 1.670,P' = 1.692,t' : l.'l13, strongestX-ray lines (29 given) are 4.87(7)(l0l), 3.89(8X030), all measuredon cleavagefragments, but becauseof the orienta- 3. r 7(10)(002 ), 2.45(9X03 2,300,23r), 2.29(5)(301,240), tion theseare probablyclose to the principalrefractive indices. 1.823(58X4l0),1.659(9X233,062), 1.203(6X611,404). Extra weak Parakeldyshiteis triclinic,space group probably P7, a = 5.419,b linesdue to UsO(H) and rutile havebeen observed. The mineralis : 6.607,c: 8.806A,a : 71.50o,0= 87.15',t = 85.63',2= 2. thought to have regainedits original crystalstructure after heat The strongestX-ray lines(FeKa) are 6.00(6X011),4.214(7)(110), treatmentbecause the calculatedaxial ratios 0.632:l:0.543and 4.17e(8X002),3.963(loxlT0), 2.e13(9)(r2r), 2.71s(6)(T2l), and interfacialangles (l l0),i1,(I l0) 64'32', (021)l|(02 I ) 85'20' for the 2.703(7)(200). 0003-004x / 79 /0s06-06s 6$00. s0 NET4/ MINERAL NAMES 657

Wet chemicalanalyses are given;one of thesegave: SiO, 39.22, lite, , stibiopalladinite,ruthenarsenite, mertieite II, some Al,Oa0.21, 2rOr 40.07,TiO, 0.13,FeO, 0.18,MgO 0.03,CaO unidentifiedminerals, and chromitein coarse-grained,dark green- 0.27,Na,O 19.33,K,O 0.25,H,O+ 0.48,HzO- 0.00,total 100.17 ish-brownsilicates from the OnverwachtNo. 330deposit, Lyden- wt.7o.Based on 2(Si + Al) this givesthe empiricalformula: burg district, Transvaal.Platarsite is gray in polishedsection, isotropic.It occursas subhedralgrains up to l.l mm on an edge. ,rr(HrO)oou.Ko.orrCao INa, oru](Zro*oFeo oorTio oooMgo oor) Reflectancemeasurements (average for two grains;another grain (Sir.eErAloorr)O" r* or ideallyNarZrSirOr. gavehigher values) are (in percent):51.3 (470 nm),49.7 (546 nm), 49.4(589 nm), and 49.2 (650nm).It is relativelyhard: VHN'' : The nameis in allusionto its polymorphicrelationship to keldy- 1486,VHNro. : 1402(another grain gaveVHN'oo : 1246).G. shite.Type materialis preservedin the Mineralogical-Geological meas8.0, calc for the empiricalformula given for grain I 8.375(the Museum,University of Oslo. abstractorgets 8.414 for grain l, 8.875for grain3, JAM). : Discussion Platarsiteis cubic,space group Pa3 with a 5.790(grain 1 ) and 5.8244(grain 3), Z : 4. The strongestX-ray lines(CuKa for grain This is not the originaldescription ofparakeldyshitenor thefirst I ) are:3. 345(8 )( I I I ), 2.896(9X2N), 2.U7 (6)(220), 1.746( I 0X3 1 I ), mentionof the namein print. Sovietmineralogists have used the l. l l4(7x333). nameas early as 1975and havegiven descriptions in 1972,1973, Four electronmicroprobe analyses are given;those for grainsI 1974,and 1975.This is, however,the bestdescription available in and3arerespectively: Pt26.9,31.4; Rh 12.8,10.3; Ru 11.4,8.5,Ir that it comparesthe Sovietand Norwegianmaterials. J.A.M. 3.6,6.1; Os 0.58,0.10; As 31.7,33.6;S 13.0,10.0; total 99.98, 100.00percent. These give the followingempirical formulas (based Penikisite* on 3 atoms):grain l, (Ptor.Rho-roRuo.2"IroouOsool)As1650"",and grain 3,(Pto..rRho2rRuo.22lro.orOso.o,)Asr 115o.62.The ideal formula J. A. Mandarino,B. D. (1977) Sturman,and M. L Corlett Pe- is PtAsS,and type materialis the rhodianand ruthenianvariety. nikisite,the magnesiumanalogue of kulanite,from Yukon Ter- The nameis for the composition.Type materialis in the Royal ritory. Can. Mineral., 15, 393-395 Ontario Museum (Toronto), SmithsonianInstitution (Washing- The mineral is very similar in appearanceto kulanite, ton), MineralogicalMuseum of the Academyof Sciences(Mos- BaFerAldPOa)s(OH)s,and crystalsgrade from one to the other. cow), and PinchMineralogical Museum (Rochester). J.A.M. Penikisitezones are generally near the edgesof kulanite-penikisite crystals.The mineralis blue to green,transparent to translucent, Sattedyite* non-fluorescentunder UV light, vitreous,streak very palegreen to J. A. Mandarino,B. D. M. I. (1978) white.H about4, fair to goodcleavages parallel to {010}and {100}. Sturmanand Corlett Satter- G meas3.79(2), calc 3.82.Penikisite is biaxial(+), a = 1.684(2), lyite, a new hydroxyl-bearingferrous phosphate from the Big B : 1.688(2),1 : 1.705(2),2V56' (meas.)and 52o(calc.); pleo- Fish River area,Yukon Territory.Can. Mineral., 16, 411-413. chroicwith X grass-green,I'blue-green, Z palepink, absorptionX Satterlyiteis transparent,pale yellow to palebrown, streak pale - Y > Z; verystrong asymmetrical dispersion, r ) u; orientation yellow, fuster vitreous,H 4t/zto 5, no cleavage,and does not : -6o, Y- b, Zltc but I/Ab rangesfrom 0o to 19o.The localityis fluoresceunder ultraviolet light; G meas: 3.68(5),calc : 3.60.It the sameas for kulanite. occursas grains up to lX lX40mmelongate parallel to [0001]in Penikisiteis morphologicallyand dimensionallymonoclinic, but radiatingaggregates in nodules.The nodules(up to lOcmin diame- the asymmetricaldispersion indicates triclinic symmetry.The ter) are found in shalesalong the Big Fish River in northeastern group :8.999, = = - space is Pl or Pl,a b 12.069,c 4.921A,a Yukon Territory(68'30'N, 136"30'W).Associated minerals are - - = : 90', P 100"31';7 90o,V 525.49A3,Z 2.Crystal forms are quartz, pyrite, wolfeite,and mari6ite.Satterlyite is uniaxial(-), the sameas those observed for kulanite,The X-ray powderdiffrac- ot: l.72l,e : 1.719;dichroic in thickgrains with Opaleyellow,E pattern tion is almostidentical to that of kulanite.The strongest brownish-yellow,absorption E ) O. lines (CuKa) are: 8.81(60)(100),3.094(100X221.031), Single-crystalX-ray study showsthat the mineralis hexagonal 3.028(60XT3l),2.e15(80X21 l), 2.684(60Xlll), 2.64e(70X320). with possiblespace groups P3lm, P3lm, andP312. Cell parame- Of the ten electronmicroprobe analyses quoted, eight are Fe- ters are:a : 11.36,c : 5.033A(a and c refinedfrom the X-ray dominant(kulanite) and two are Mg-dominant(penikisite). The powder data are ll.36l and 5.041A, respectively);Z = 6. The two penikisiteanalyses are: MgO 6.5,6.1; CaO 1.4,1.3; MnO 0.0, strongestX-ray lines (CuKa) are: 4.49(50)(1011), 3.520(70X2021), 0.4;FeO 9.5, l0.l;BaO24.9,24.6;Al2Og 18.0, 17.5; P,Ou37.1,36.4; 2.990(40)(2r31), 2.840(80)(2240), 2.473(100)(224r), (one H,O 3.9 analysisby TGA); total 101.3,100.3 wt.Vo. The first 1.88 6(40)(2242), l .640(40X 6060) a n d 1.,147(60)(s| 62, 2243). gives analysis an empirical formula of Ba".r.(MgoruFeozrCaoru) Analyticaldata wereobtained by electronmicroprobe analysis Al2oePs oeor2.r(OH), u. or, ideally,Ba(Mg1 olFq 5sCa..rr)At(Po.l (with HrO by the Penfieldmethod). Total Fe from the microprobe (OH)r. The mineralis ferroanpenikisite. analyseswas recalculatedas FeO and FerO, on the basisof a The nameis for Mr. Gunar Penikiswho, with Mr. Alan Kulan, ferrousto ferricratio of 6.42to 1.00determined by wet-chemical discoveredthe phosphateoccurrence in the northeasternpart of means.The averageof fiveanalyses (range in brackets)gave: NarO the Yukon.J.A,M. I s (1.2-1.6).MgO 7.1 (7.0-7.s),Mno 1.3(1.2-1.7),FeO 43.1 (42.'l-43.8).FeOs 7.5 ('l .4-'l .6), SiO, 0.2 (0.0-0.2),P"O,34.8 (34.1- Platarsite* 35.3),total 100.7(100.0-101.3)70. These data give an empirical formula (basedon five ions) of (Fe?.+ztMgoa"Fe3.+r"Ho'" L. J. Cabri,J. H. C. Laflamme,and J. M. Stewart(1977) Platinum- Nao or, ideally,(Fdl"Mgo group mineralsfrom Onverwacht.II. Platarsite,a new sulfarse- ,oMnooa)Po eeSie erOa oo rFe|irHo ,"Nao,o Mnoon)PO.(OH). nideof platinum.Can. Mtneral.,1J, 385-388. Satterlyiteis a hexagonalpolymorph of wolfeite.DTA curvesof The mineraloccurs with Pt-Fe-Cu-Ni alloys,genkinite, sperry- the two mineralsshow no evidenceof inversion.Weight loss in

0003404x / 79 / 0506-0657$00.s0 658 NEW MINERAL NAMES satterlyitebegan at about53lo and continuedto about603o, after 0.82-1.52,0.82-r.52 : 95.43-97.82,93.42-95.81%. These corre- which a weightgain beganand continuedto about 943'C. The spond approximately to Ca'o(COr)'(SiOr)CI(OH)or DTA curve showsbroad exothermicpeaks at 527" and 782 and Ca,(COg)z(SiO.)Clr(OH),. an endothermicpeak at 957oC. Colorless,monoclinic(?), optically biaxial, neg., a = 1.554,0= The nameis in honor of Dr. Jack Satterly,long-time geologist 1.573,t : 1.577(all +0.001),2V = 4So,dispersionr( u,medium, with theOntario Department of Minesand, since 1971, a Research elongation negative.Twinning on {001}, simple and multiple. Associatein the Departmentof Mineralogyand Geology,Royal Cleavage{010} perfect, {001} doubtful. Extinctionangles Zlta : Ontario Museum.Type material(grams) is preservedin the Royal 13-16",bLY = l0-18'. G 2.65-2.70(calc from refractiveindices). Ontario Museum.Toronto. J.A,M. X-ray powder data are given. The strongestof 27 lines are l 1.43(3s),8.36(30), s.701(30), 3.062(r00), 2.909(40), 2.'t7 t(35), Synchysite-(Nd) 2.4t7(50), 2.230(30),r .962(40),l .899( s0), l. 837(70).M.F. Zoran Maksimovicand GyorgyPanto (197E) Minerals of therare- Wollastonite-77 earthelements in karsticbauxites: synchysite-(Nd), a new min- eral from the Grebnik deposit.Proc.4th Int. Congr.for theStudy Chiyoko Henmi,Isao Kusachi,Akira Kawahera,and Kittinosuke of Bauxites,Alumina, and Aluminum, Athens, 13 pp. Henmi (1978)7T wollastonitefrom Fuka, OkayamaPrefecture. Mineral.J. (Tokyo),9, 169-181. In theGrebnik bauxite deposit, Yugoslavia, diaspore and hema- tite are the principal minerals.Rare earths were found to be The mineralwas found in a singlesample from skarnat Fuka,as concentratedat the bottom of the depositsand in contactwith the an intergrowthwith wollastonite-2M(parawollastonite). The lat- footwalllimestone. Synchysite occurs as micro-cavity fillings, up to tice constantsare a = 54.3+0.3,b : 7.30+0.03,c : 7.08*03A, 30 microns in diameter.The averageof 3 electronmicroprobe a = 90.0,0 = 95.5,1 : 92.1(all +0.2'). It may be regardedas a analysesgave La2Os 17.9, CeOg 3.0,PrzOg 6.8, Ndros 23.2,SmzOs mixed layerstructure composed of 3 2M and I lT. M.F. 4.3, Gd,Os3.8, DyzOs1.4, Y,O8 5.8, CaO 12.6,F 7.0,COz (calc) f 7.1. total 102.9- (O = F,)2.9 = lNVo. The formula is Ca,.,o (Ndo.3.Laor7Yo ,rPro.roSmo o.Gdo ouCeo o.Dlo orXCOs)r roF, X-ray NEW DATA data could not ".. be obtained. Arcenopalladinite In the Marmarabauxite deposit, Greece, a similarconcentration of the lanthanidesoccurs but theyare in monaziteand in bastnae- L. J. Cabri, A. M. Clark, and T. T. Chen(1977) Arsenopalladinite site-(La)(La 30.1,Ce27.3, Nd 27.7).M.F. from ltabira, Brazil, and from the StillwaterComplex, Mon- tana.Can. Mineral., 15,7U73. Tetrakalsilite Type arsenopalladiniteis Pd'(As,Sb)gwith As:Sb = 5:1. It is Ettore Benedetti,Maurizio de Gennaroand Enrico Franco(1977) triclinicwith a : 7.43,b : 13.95,c: 7.35A,a : 92o53',0 : First occurrencein nature of tetrakalsilite.Atti Accad. Naz. l19'30', 1 : 8'1"51',Z : 6. Stillwateritefrom the Stillwater Lincei,CI. Sci.Fi. Mat. Nat.,62,835-838(in ltalian). Complex is hexagonalPdrAsr, but grains with the composition Pd(As,Sb,Sn)3where As:(Sb + Sn) - 5:l areprobably triclinic Tetrakalsilitewas described as a new phase Mineral.,42, lAm. and must be consideredarsenopalladinite. Strongest X-ray linesof 286 (1957)1. has the It now been found in ejectedblocks of type arsenopalladinite(Co radiation, tr : 1.79024) are: volcano, with kalsi- Somma-Vesuvius associated augite,nepheline, 2.34(6X2t31, 2.13(r0X003,24r),r.4r(4X264). 1.24(3)(325), lite, melilite,and biotite. Analysisgave SiO, 39.60,AlrOs 31.90, r.2r(3x474)).J.A.M. FeOe0.35, FeO 0.15,MgO 0.11,CaO 0.43, SrO 0.01, BaO 0.12, Naz O 5.74,K,O 21.52,Rb,O 0.07,H,O 0.12,sum 100.12%, Chalcothallite correspondingto (Ko.7uNao.ru)AlSiO.. The mineral is hexagonal, P6", a = 20.513f0.008, c : V. A. Kovalenker,I. P. Laputina, E. L Semenov,and T. L. 8.553+0.003,Z : 32,G calc2.62,meas 2.59. The strongestX-ray Evstigneeva(1978) Potassium-bearing thalcusite from the lli- fines (29 given) are 4.277(m)(ffi2), 3.929(s)(401), 3.07 l(vs)(402), maussaqmassif and new data on chalcothallite.Dokl. Akad. 2.91a(mXa30).The mineralis opticallyuniaxial, neg.,

7.210(t),b : 7.213(2),c = 20.451(3)A,a : 95.15(3)0,B = recalculated,on the basis of 6COz per forpula, to (Nat.z, 95.60(2)',7 : 89.04(5)',Z : 4. Stron$estX-ray lines(radiation?) KoozXCao.rgUo.rr)(BA,.2Sro r)(Y".RB.rXCOr)r. 3.48HrO which are: 3.058(1 00(T23,023,024,273), 2. E I 5(62X024,025,7 | 6), is closeto the expectedideal formula, NaCaBasY(COs)o.3HrO. 1.801(51)(numerous),1.687(45)(numerous), 1.552(40)(numerous), J.A.M. 1.5I 8(55)(numerous).J.A.M. Rustumite Mckelveyite R. A. Howie and V. V. llyukhin (1977)Crystal structure of rustu- G. Y. Chao,P. R. Mainwaringand J. Baker(197E) Donnayite, mite. Nature,269, 231. NaCaSrrY(COs)..3HrO,a new mineralfrom Mont St. Hilaire, ,Single-crystalstudy showedrustumite to be monoclinic,space Quebec.Can. Mineral., 16, 335-340. groupC2/c, with unit cellas given by Agrell in 1965,a = 7.62,b = During their study of the new speciesdonnayite, the authors 18.55,c: 15.51A,A : l04oD'. The structureshows, however, found that it and mckelveyiteare isomorphous and probablyform both StOz and SiO. groupsand one peak requiringCl for fit, so a solid solution.The orisinal analvsisof mckelvevitehas been that theformula becomes Ca'(SizOz)z(SiOr)Clr(OH)r, Z : 4,M.F.

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