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Home , Ajoite, Carlfriesite, Cesbronite, Hessite, Linarite, Murdochite

American Mineralogist, Volume 61, pages 502-504, 1976

NEW NAMES*

Mrcsnnl FLrrscHsRAND Lours J. Cnenr

Abelsonite* phate. It contains inclusions of and xenotime and is A Pnssr, P. A. EsrEp, E J. Dwonurx, R. B. FrNrrllrnN eNn C. partly alteredto apatite along cleavageplanes Mrr-roN (1975)Crystallized porphyrin from the Green River The name is for ProfessorEgon Althaus, University of Karls- Formation, Utah Geol. Soc Am. Abstr. programs with 7, ruhe, Germany. Type material is at the Mineralogical t22t-t222. Museum, Oslo, . M.F. *

S. A. Drweel, E. A. VlLroEN eNn L. C. CnI-x (1974) Nickel from Barberton, South Africa. Vll Bonaccordite,the nickel analogueof ludwigite. Trans.Geol. Soc.S. Africa,77, 373.

purple, X-ray powder data are given. The _Color luster adamantine. Very soft and fragile. strongestof35 hnesare 5.10 50 120, 4.6 | 40 200, 2 548 t00 {lTl}. Pleochroic, deep brown parallel to elongaiion, opaque 240, 2.5t4 100201, I 898 50 J-11.This normal to elongation. leadsto orthorhombic unit cell parameters4 9.213+ .006.b ll.22g The p. t .007,c 3.001+ .0024, spgrcalc name is for Dr. H. Abelson, presidentof the Carnegie 5.17,spacegroup assumed to be Institution, Pbam. Washington,a pioneerin organicgeochemistry. M.F.

Althausite*

GuNNnR Reeoe ,qNoMAGNE TyssELaNo (1975) Althausite, a new mineral from Odum, Norway. Lithos, g, 215_219. kglsq mm. The mineral occurs with trevorite, liebenbergite,nepouite, ni_ mite, bunsenitg,gaspeite, , and milleritein the Bon Accord area, Barberton Mountain Land, Transvaal,as clustersof slender pnsms up to 400 X 30 microns,forming veinsin the other minerals and as rosette-likeradiating groups in liebenbergiteand trevorite. The name is for the locality. M.F. Borishanskiite* L V. RnzrN, L. S. DuserrNA, V. I. MESHcHANKINAero V. D Bscrzov (1975) Borishanskiite-a new plumboarsenide curves show that dehydration proceedsrapidly at 70_460., and of palla- dium from the -nickel sulfide conttnuesat a slower rate to 710.. Small endothermicpeaks were of the Talnakh differen- noted at 385" and 877.. tiated intrusive Zap. Vses.Mineral Obshch. lO4, 57-61 (in Rus- sian). Oscillation and Weissenbergstudy showed althausiteto be or_ pna2,, pd pb thorhombic, spacegroup a g.259,b 14.3g3,c 6.054A,2 = S, Microprobe analysesgave 29.8, 504, As 214, and pd sp gr calc2.91, measured 2.97. ThestrongestX-ray lines(41 given) 314, Ag l.l, Pb 502, As 19.8,sums 101.6and l02.57oThese correspond are 3.593 100040, 3.3l6 90 2I I, 3.024g0 002, 2.7S6 60 2I t, 2.641 to Pd,.ou(As,.orpbo."r)and (pd,.,uAgooo)(As,.orpbo."u), 60 t22. and the proposedideal formula is pd,*"(As,pb), wherex ( 0.2. The powder pattern Color gray (from magnetiteinclusions), luster vitreous. H 3 l/2 closely resembles that of polartte [Am. Mineral.55, (1970)1. on b,4 on a. Cleavages{001} perfect, {l0l} distinct.Optically biaxial, l8t0 The srrongestX-ray lines(21 given) are positive, 2.65 refr. ind. (white light) a 1.588,p 1.592,7 1.59g,2I/ - 70" t0 004, 2.506 r04.2.25 6 311,2.16g 040, 1.6776 t50,044, 1.385 est, 78.5o calc,X = b, Y = c, elongation negative. 6 032, 1.1696 602. The pattern has been indexedas ortho_ rhombic : : The mineral occurs in cleavable massesup to several hundred a 7 t8(2), b 5.62(2),c : 10.66(2)4 The calculated grams density in serpentine-magnesitedeposits at Modum, Norway, is 10.2g. cm3. closely associatedwith apatite and an unidentified Ca_Mg phos- The mineral was found in massive and disseminatedCu_Ni sulfide ores in the Talnakh and Oktyabr deposits.It is usually * observed as 20-30 micron grains in multimineralic assemblages Minerals marked with an asterisk after the name were aD_ with Pd and Ni arsenides,Au and Ag alloys, pd.pb, proved and before publication by the Commission on New Minerals (Pd,Pt)rSn, rarely as single grains (6-150 microns) enclosed in and Mineral Names, International MineralogicalAssociation ,magnetite, and pyrrhotite. 502 NEW MINERAL NAMES 503

Under the binocular microscope, the mineral has a dark steel- It occurs at Tiger, , in a breccia of andesite loosely ce- gray color and metallicluster. It is nonmagneticand brittle. VHNro mented with oxides and ;also present,murdochite, : 241(228-250) and VHNuo : 242 for isotropic indentations; mimetite, dioptase, , , descloizite Also found in VHNro : 182 - 292 for anisotropic indentations. Cleavagecracks smalleramounts at Wickenburg,Arizona, with fluorite and ajoite, appear around the indentations, ranging from one set parallel to and at Caborca, Sonora, Mexico, in andesite breccia, where it is the inprint for isotropic indentations up to three intersectingcleav- replaced by chrysocolla. agesfor the anisotropicindentations. The name is for S. C. Creasey,geologist, U.S. GeologicalSur- In polished section (air) the mineral is grayish-white with no vey, for his studies of Arizona mines. Type material (perhaps lg) is noticeable bireflection. It is light gray next to (Ag,Au) alloys and at the British Museum of Natural History, London, and the Uni- light grayish-white next to chalcopyrite. Anisotroprism varies from versity of Arizona, Tucson. M,F. barely noticeable to moderate with polarization colors in yellow Krautite* ish-grey tones. Reflectance (percent) for R', and R'o 430nm 53.2 FnnNgors FoNTAN,Mnncel OnLLtc ,tNo FRANqolsPsnlrlNcs,cr and 5 I .6, 460nm 54.6 and 54.1 490nm 56.2 and 55.8, 520nm 56.4 , (1975)La krautite, MnHAsOn HzO, une nouvelleespdce min6rale. and 56.0,550nm 57.0 and 56.6,580nm57.8 and 57.3,61Onm58.7 Bull. Soc. Fr. Mineral. Crist. 98,78-84. and 58.3,640nm59.8 and 59.3,670nm60.6 and 60.1,700nm61.7 Analysesby M.O. on l7 mg, carefullyselected under the binocu- and 61.2. The mineral is etched by 20VoFeCl" and concentrated lar,gave As,O. 53.7,MnO 33.0,HrO 12.8,sum99.5Vo, correspond- HNOr, and slightly etched by HgCl. It is negative to other stand- ing closely to the formula above. tests showed very ard etch reagents. Qualitative small amountsof Ca and Mg The compound had beensynthesized The mineral is named after Soviet mineralogist, S. S. Borishans- in 1886;it was preparedby reactingsolutions ofHrAsOo (in excess) kaya and a type specimen is preserved in the Mineralogical Mu- with MnCOr, filtering, and evaporating slowly at a temperature seum of the Academy of Sciencesof the U.S.S.R., Moscow. below 100o.The DTA curve shows an endothermicpeak at 230' Discwsion (dehydration);the dehydrationcurve showsthat the water is given Analysis using standardscloser in composition to the mineral off at 180-290";the product is MnzP,O'. may resolve whether it is indeed non-stoichiometric. Furthermore, X-ray study shows the mineral to be monoclinic,a 8'00 + 02, b = the analyses for As are questionable as they were done using 15.93+ .05,c 619 t .024,0 96'32' + 5',2 8, sp. gr. calc3.29, AsK"(LiF) for a compound with a significant quantity of Pb. Pbl" measured3.30; measured synthetic,3.3l The strongestX-ray lines has a strong peak with LiF that coincideswith AsK" at 1.173.The (32 given) for the mineral and the synthetic compound, respec- authors have not clearly stated whether the name is for tively, are: 7.96 10, 7.9939 020,100;3.84 7, 3.862 l0 210: 3.2'l 5, Pdr*,(As,Pb), with As i Pb or whether the As:Pb ratio may vary. 3.304,3.273l0 012,221,201;3.17 7' 3.1889 230, 112 PdAs is not known in the syntheticsystemwhereas PdPb is. Single The mineral occurs as pale rose cleavagelamellae up to 2 mm in crystal X-ray and synthesis data would also be useful. L,J.C. largest dimension and as,aggregatesof these. H less than 4; cleav- age {010}micaceous, {I0l} good, {l0l} distinct. Optically biaxial, Creaseyite* positive, refr ind. (Na), a 1.620,P 1.639,7 1.686(all given as * A WILLIAMs (1975) S nro R. A. Broelux Creaseyite, .02),2V + 65 + 5', X : b,ZA traceof (I0l) : 16".elongation Cu,Pb,(Fe,AL)Si,Or?.6HrO, a new mineral from Arizona and posltlve. Sonora Minersl Mag 49, 227-231 The mineral has been found in collections at the Ecole Natl' Microchemical analysisby Miss M. Duggan (Al and H,O by Superiere des Mines, Paris (type), Museum Hist. Nat. Paris, L. A. Talley) gaveCuO 130-14.5, averageof 5 l3 5; ZnO O.9-l 6, Vienna, and SmithsonianInst. (R 10961), labelled"hoernesite" or averageof 5 1.2:PbO 25.8-38.5,averageof4 37.0;Fe,O. I 1.6-13.0, "manganiferous hoernesite," from Sacarimb (formerly Nagyag), average of 3 12.3; Al,Os 1.9, 2.3, average 2.1; SiO, 25.6, Transylvania,Roumania. The name is for FrancoisKraut, miner- 25.4, average 25.5; H,O 8.6, 8.9 (Penfield, 550"), average 8.8, alogist of the Museum nationale d'Histoire naturelle, Paris M'F' sum 100.470;unit cell contents (Cu"rZnor) Pb7, (Fe"nAlo.r) Magnesioaxinite* Siroso6s?(HrO)"".or 4 (PbrCurFerSi"Ol?.6HrO).Spectrographic testsshowed tracesof Ca, Mg, and As (mimetite); sulfate, chloride, E. A. JossrNs,ANNE E. Tnrsnnv eNn B. R YouNc (1975)Mag- carbonate, and fluoride were absent. The mineral is decomposed nesioaxinite, a new mineral found as a blue gemstone from Tan- by hot dilute HCI and HNO', yielding a silica sponge.Fuses to a zania. J. Gemmol 14,368-375. rusty brown slag. Microprobe analysis, using "appropriate silicates, oxides, sul- Rotation and Weissenbergphotographs show the mineral to be fides, and pure metals as standards," gave SiO, 44 0, TiO, 0 03, orthorhombic, diffraction symbol nTmmcb, unit cells for Tiger and BrO, not determined,Alros 17.9,VrOr 0.l3, Cr, Fe, Ni, Co, Na not Wickenburg material, respectively,a 12.483 + .006, 12497 b found, MnO 0 4, MgO 6 9, CaO 21.7,ZnO 0.06, K,O 0.01, H,O 21.375+ .011,2t.375; c 7.283 I .004,7.283A; Z = 4; sp gr calc not determined, sum 9 I . l3%. A qualitative test for B was positive. 4.01, measured(sink-float) 4.1 + .1. The strongestX-ray lines X-ray powder data (27 lines) showed strongest lines 6.29 25 I I 0, (Tiger, Wickenburg) (18 given) are 10.726, 10.755 l0 110,020, t 10 ; 3.44o6s 002,3.139 65 220, 2.7 96 100 Jl 7, 2.s5625 21 2, 2.176 6.024 5 11t,021, 3.0136- 042,222;2.982, 2.989 5 350 28 14I , 2.15032 103.These are indexed on celldimensions a 8.933, Color Agathia green to Cyprus green, lighter. H 2 | /2 for b 9.t55,c 7.l2lA, a 102.59",P 98.28","y 88'09'' spherules,higher for individual crystals.Optically biaxial, positive, The mineralis paleblue in daylight,pale violet under tungsten refr. ind. (Na) a 1.737,B 1.74'1, "y 1.768(all + .002),2V 69' (70" lighting.H greaterthan 6, lessthan 7, sp gr 3.178.Optically calc), / < u weak, Pleochroic, I'clear watery green, Z yellow-green, biaxial,positive (most axinites are negative), a 1.656,P 1.660,7 Xsimilar but yellower, absorption Z : X > Y. X = a, Z = c, 1.668(all + .001),2V and opticalorientation could not be deter- extinction parallel, fibers are length-slow. mined.Pleochroic pale blue to paleviolet to palegray' Fluoresces The mineral occurs as fibers, either in spherules or matted, orange-redin long-waveU.V. (36504),duller red in short-wave intertwined.Maximum length0.5 mm, maximum width 0.05 mm. u.v. (23574). 504 NETYMINERAL NAMES

mineral is a rough gemstoneweighing _.The 0.1577g(0.7gcarats). -barite-sulfide vein material. The primary ores contained The name, for the composition, is proposed for the CarMg end_ , , , and tellurian : the zone of member of the axinitegroup. An axinite describedby Vallance,,/. oxidation contains the two new minerals,and ,, Proc. Royal ,Soc.N.S. Wales,99, 5j-67 (1966), has the composi_ linarite, quetzalcoaltite, , and . M.F, tion Car.oa(Mgo.rrFeo.o,Mno,,).Type material is in the Geoloeical Museum, London. M.F. Microchemical analysisby Miss M. Duggan gave CuO 51.3, Parapierrotite* ZnO 2.4 (by atomic absorption),TeO, 38.7 (spectrophotometric), Z JosN, P. Prcor, J HAK AND (1975)La M Kvncrr paraprer_ HrO 8.0,sum 100.4%,corresponding to Cu, ouZno,oTeO.), on(OH)n, rotlte, un nouveau min6ral thalliferdd'Allchar (yougoslavie) or Cur(TeOo)(OH)0. Spectrographic analysis showed traces of Tschermaks Mineral. Petrog. Mitt. 22, 200-210. Fe and Ag. Microchemical tests were positive for tellurate. Microprobe analysesby R. Giraud and C. Gilles, using as stand- The strongest X-ray lines (27 given)are4.627 l0 220,3.439 4140, ards TlAsS,, Sb,Sr,and pierrotitegave Tl 19.4, 19.3,20.2.,Sb 51.g. 3.099 4 330, 2.6'136 340, 2.434 4b t 34,J42. Single crystals suitable 50.8,50.8;As 5 0,5 3,3.7,3.7;525.4,24.7,24.5;sum 101.6,I00.1, for study were not found. The pattern was indexed as orthorhom- 99.28a, corresponding to (average) Tl,.o,(Sbn...Aso.ua)Ss..1,or bic, a 12.140+ 0.06,, 14.318+ 0.10,c 11.662+ 0.064., Z : t2,sp ideally TlSb,Sr. The mineral was synthesized by addition of thal- gr calc 4.42, measured 4.65 + 0.1. lium acetatesolution to solutionsof SbzOsand NarS at pH 7-g and Color rich green, near emerald-green, streak pale green. H 4, heating the precipitate at 120" for 2 hours. spherules tough and brittle. Optically biaxial negative, refr. ind. Weissenbergand rotation photographs showed the mineral to be (Na) a 1.775,B 1.900,7 1.920(all + .005), -2V 4t" calc. pleo- monoclinic, P2t/n, a 8.02+ .02,b 19.35+.05,c 9.03f chroic in bluish green, absorption Z > X : /. Dispersion low. .02A, B 91"58' + 5', Z : 4, sp gr calc 5.04,measured on synthetic The mineral occurs in spherulesusually lessthan 0.15 mm in : 5.07, a:b:c 0.414":l:0.467, measured goniometrically diameter; these consist of radial needles seldom more than 5 mi_ 0 413: I :0.466,P 9l'57' + 2' . The strongesrX-ray lines (32 given) crons in width. are 4.f5 9 140, 3.6969 032, 3 5997 i22, 3.493t0 150.2.9t39 212. The name is for the Nahua word for grapes,in allusion to the 222.z.B3z ro t6t, 2.3s6 s 072. clusters of green spherules. Pronounced zho-ko-mecatl-ait. Type The mineral occurs as terminated prismatic crystals up to 3 mm material, perhaps 100 mg in all, will be at the British Museum (Natural paris. long, but mostly lessthan l mm. Forms observedz {100},b {010}, History), London, and the Universitv of M.F. a {100}dominant, and l6 others.Color black,luster semi-metallic. In reflectedlight white with a slight creamy tint. weak, hardly perceptiblein air; in oil from grayish-whiteto brownish- Anafysis,made as statedabove, gave CuO 3l.0, ZnO 19.3,TeO, gray. Distinctly anisotropic,on (010), lessso on (100) and (001), 6.1,TeO, 15.0,Cl 1.3,H"O27 7 = 100.4- (O: Ct,)0.3 = t}}.tVo. brownish-gray to bluish-gray, rare purple-red internal reflections. Traces of Ag were present; tests showed both Te+{ and Te+6,which Reflectancesin air and oil are given at l5 wave lengths on (100), were determined spectrophotometrically before and after reducing (010),and (001).On (010)in air, maximum and minimum valuesin Te+6. The analysis to the formula above. air were: 460 nm, 41.1, 30.3; 54O,39.7,29.1; 580, 38.5,2g.6; 660, The X-ray pattern hasstrongest lines (25 given) 16.78710, g.394 35.1,26.7. Microhardness(average of 5) 25 g load, 76 kglsq mm 8,4.201 10, 3.3556. Attempts to index it on an orthorhombic cell (:Mohs 2.5-3). failed (2 axes appeared to be 12.062A and 16.7g2A). and the The mineral occurs in cavities in realgar from the Allchar de- mineral may be monoclinic. posit, Macedonia (type locality), also at Jas Roux, Hautes Alpes, Color delicate blue, near Capri blue, streak very pale blue. fl = l, gummy, France. The name is for the relation to pietrotite (Am. Mineral. S7, sectile.sp gr 4.55 * 0.1 (sink-float).Optically biaxial, negative,refr. (Na) 1909) Type material is at the Ecole nationale superieure des ind. a I 758 + .002,p 1.796+ .002,1 l.gt0 o Mines, Paris. M.F, (+.005), 2V 64" measwed, 6l calc. pleochroic, X yellowish-green, Y and Z bluish-green, y Xocomecatlite*. Tlalocite* absorption Z > > X. Extjnction parallel. The mineral occurs in spherules or arcuate bands of lath-shaped S.A. WruleMs (1975) Xocomecatlite,CurTeO.(OH)r, and tlalocite, crystals from 0.5 to about l0 microns long. Z is parallel to elon- Cu,oZnu(TeO.) (TeO.l CI(OH)25.27H2O, two new minerals liom gatlon. Moctezuma, Sonora, Mexico. Mineral. Mag. 40, 221_226. The name is in allusion to the high content of water; Tlaloc was The mineralswere found in the Bambollita Mine (La Oriental) the god of rain. Pronounced tla-lauk-ait. Type material as for on rhyolite adjacent to oxidized vein matter or in altered xocomecatlite. M. F,