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New Mineral Names* AmericanMineralogist, Volume 80, pages 1328-1333,1995 NEW MINERAL NAMES* JonN L. Janson Department of Earth Sciences,University of Waterloo, Waterloo, Ontario N2L 3Gl, Canada J.lcnx Pvztnwtcz Institute of Geological Sciences,University of Wroclaw, Cybulskiego30, 50-205 Wroclaw, Poland ANunnw C. Ronnnrs Geological Survey of Canada, 601 Booth Street,Ottawa, Ontario KlA 0E8, Canada Alarsite* rhtinite, but the synthetic phaseis much higher in Ti and T.F. Semenova,L.P. Vergasova,S.K. Filatov, V.V. An- lacks Fe. anev (1994) Alarsite AlAsOo: A new mineral from vol- Discussion.Known only as a synthetic product; not a canic exhalations.Doklady Akad. Nauk, 338(4),501- valid mineral name. J.L.J. 505 (in Russian). Electron microprobe analysis (averageof 20) gave AlrO. 31.98,FerO, 0.60, CuO 0.54,AsrO, 66.71,sum 99.83 Crawfordite* wt0/0,corresponding to Al, ooFefig,Cufrj,AsonuOo.Occurs as A.P. Khomyakov, L.I. Polezhaeva,E.V. Sokolova(1994) colorlessaggregates with yellowish, pale green,and bluish Crawfordite NarSr(POo)(COr):A new mineral from the tints, commonly containing powdery hematite or tenorite bradleyite group. Zapiski Vseross. Mineral. Obshch., and gaseousinclusions; also as equant grains to 0.3 mm 123(3),4l -49 (in Russian). in diameter, some with poorly developed faces.Vitreous Electron microprobe analysis (averageof two grains) luster, white streak, brittle, no cleavage, VHNro: 449 gaveNarO 31.83,KrO 0.22,CaO 1.45,SrO 27.42,P2O5 (336-480),D-""" : 3.32(l),D*r.: 3.34g,/cm3 for Z : 3. 23.64, CO2(calculatedfrom X-ray structural data) 14.47, Stableat atmospheric conditions; soluble in dilute acids. sum 99.03wt0/0, corresponding to Na. or(Sro,,Na" ,oCaoor- Colorless in transmitted light, uniaxial positive, c.r : &0,)P,o,C,ooOroo,ideally NarSr(POo)(COr).Occurs as 1.596(1),r : 1.608(l).The X-ray powderpattern is iden- colorless,transparent to translucent irregular grains to I tical to that of synthetic AlAsOo; by analogy, trigonal mm in diameter, dull vitreous luster, conchoidal fracture, symmetry,space group P3r2l or P3221,a: 5.031(l),c H:3, bright greenishyellow fluorescencein ultraviolet : 11.226(6)A as refined from the diffractometer pattern light, readily soluble in 100/oHCI and in citric acid at (CuKa; 3l lines given) with strongestlines 4.36(20,100), of room temperature,D-""" : 3.05,Dd": 3.08 g/cm3for Z 4.06(3l,l0l), 3.442(100,r02),2.359(15,104), and : 2. The infrared spectrum shows absorption bands at 1.873(16,1l4). 1445, 1055,and 575 cm-'. Optically biaxial negative,a The mineral occurs in the fumarolic deposits of the : 1.520(2),P : 1.564(2),y : 1.565(2),2V^u" : 20(l), Great Tolbachik fissureextrusion, Kamchatka Peninsula, 2V*rc: l7o, X x l, Y x a, Z = B. Single-crystalX-ray Russia, and is associated with langbeinite, fedotovite, study showed the mineral to be monoclinic, spacegroup kluychevskite, lammerite, hematite, tenorite, Al- and P2,,a:9.187(3), b:6.707(2),c:5.279(l) A, B: K-containing sulfates,and sparsenabokoite and atlasov- 89.98(3F.Strongest lines ofthe powderpattern (68 given; ite. The name is for the composition (aluminum arse- 57 mm camera,Fe radiation) are 2.708(100,220,121,121), nate). Type material is at the Mining Museum of the 2.648(90,30t,301,002),2.t72(100,410,130), 1.891(90, Mining Institute, Saint Petersburg,Russia. J.P. 222,222),and 1.415(70,042).The structureof the min- eral consistsoftwo layers parallel to (100), with one con- Baykovite taining Na octahedra and tetrahedra and the other with A.V. Arakcheeva (1995) Crystal structure of the baykov- discrete POo and CO, groups, Na octahedra,and Sr oc- ite mineral. Crystallography Reports, 40, 220-227 . tagons. The mineral occurs in pegmatitesof the Khibiny mas- The name baykovite had been applied previously to a sif, Kola Peninsula, Russia, associatedwith potassium brown phasethat occurs in Ti-bearing silicate slags.Sin- feldspar,nepheline, sodalite, aegirine (main rock-forming gle-crystal X-ray structure study of a synthetic crystal minerals), plus pectolite, astrophyllite, barytolampro- showedit to be triclinic and a member of the aenigmatite phyllite, shcherbakovite, vuonnemite, kazakovite, er- structural group; the composition is similar to that of shovite, chkalovite, natrite, villiaumite, and rasvumite. The name is for Scottish chemist A. Crawford (1748- * Before publication, minerals marked with an asterisk were 1795), who discovered the Sr salts. Type material is at approved by the Commission on New Minerals and Mineral the Fersman Mineralogical Museum, Moscow, Russia. Names, International Mineralogical Association. J.P. 0003-004x/95 / r I 12-1328$02.00 r328 JAMBOR ET AL.: NEW MINERAL NAMES 1329 Makovickyite* Discussion.Microprobe analysisis necessary.The new L. Z k, J. Fryda, W.G. Mumme, W.H. Paar (1994)Ma- name should not have been introduced. J.P. kovickyite,Ag,rBirrSn, from Baita Bihorului,Roma- nia: The aP natural mineral member of the pavonite series.Neues Mineral. Abh.. 168. 147-169. Jahrb. Shuangfengite* The mineral at Baita Bihorului (formerly Rezb6nya) Zuxiang Yu (1994) Shuangfengite:A new iridium bitel- occurs as anhedral grains up to 2 mm, consisting of alter- luride. Acta Mineral. Sinica, l4(4),322-326 (in Chi- nating lamellae of Cu-rich and Cu-poor phases;also found nese,English abs.). at Felbertal, Austria, as a singlehomogeneous grain. Gray in with PGM as color, opaque, metallic luster, no cleavage, VHNso_too The mineral occurs association other : 210-221 for intergrowths. Light gray in reflected aggregatesup to 0.5 mm in diameter, and veinlets up to placer light, no bireflectance,pronounced anisotropism in gray 0. I mm wide and I mm long, in concentratesand near the village of tones,D"u," :6.70 (Cupoor) to6.66 g/cm3(Curich).Elec- crushed ores from a chromite deposit 190 km north-northeast of Beijing, tron microprobe analysesof the Cu-poor and Cu-rich la- Shuangfeng,about People'sRepublic of China. Black color and streak, 11 : mellae and the Felbertal grain gave,respectively, Cu4.37 , VHN2r: 108(86-l6l), perfect cleavage,brit- 6.47,0.53, Ag 5.37,4.17, 5.50, Pb 3.50,8.20, 12.93, Bi 3, {0001} : g,/cm3for Z : l. Electron microprobe 68.81,63.33,62.70, Sb 0.09,0.t2,-, S 17.75,t7.42, tle, D-" 10.14 (average range nine listed) gave Ir 40.3 77.97,5e0.40,0.48,0.17, Te 0.69,0.50,-,sum 100.98, analyses and of (34.0-42.7),Pt 1.2 (r.4-s.8), Os 0.1 (0.0-0.7),Rh 0.0 100.69, 99.80 wto/0,corresponding to AgorrCu,orPbo.rr- (0.0-0.1),Cu 0.2 (0.1-0.3),Te 56.7(54.8-57.9), S 0.3 Bisresbo ,oSr rrSeo orTeo or, Ago urCu, 62Pb0 63Bi4 82sbo orS, uo- (0.2-0.5),Bi 0.4 (0.3-0.8),sum 99.2 (97.8-100.9)wt0/0, Seo,oTeoou,and AgorrCuo,oPb,o.BionrSr'Seooo, ideally correspondingto (Iro (Te, Ag,oBiroAgorBi3sse,which is the aP pavonite homolog. nrPtoorCuo o, )ro ,, ,rSoooBio o, )", or, ideally IrTer. In reflected light, bright yellowish white with Single-crystal X-ray study indicated monoclinic sym- a bluish tint, bireflectanceand pleochroism not observed metry, space group C2/m; cell dimensions for the re- in air or oil; anisotropism moderately weak, with bluish spectiveanalyses given aboveate a : 13.37,13.3713.83, and yellowish tints. Reflectancepercentages in air (WTiC b : 4.05,4.05,4.04, c : 14.7l,14.94, 14.72 A, P : SS.S, standard) are given for R" and R. in l0 nm steps from 100.5, 97.5". Strongestlines of the powder pattern are 400 to 700 nm: 45.5, 4L6 (470 nm); 48.3, 40.4 (540); 3.6 3 ( 5 0,004, 2 0 3), 3.4 8 5 ( 5 0, | | 2), 2.968 (30,20 4,3 | r), 49.0,41.| (590);51.2, 45.2(650). By analogywith PtTe,, 2.850(100,205,31l), 2.272(40,115,404), 2.r17(30, hexagonalsymmetry, space group P3ml, a: 3.933(5),c 5 I 3,601),and 2.0l0(30,514,602,020). : 5.390(5)A as refined from the powder pattern; strong- The mineral occurswith hammarite, bismuthinite, and lines(21 lineslisted) are 2.85(100,101), 2.10(80,102), other Bi- and Cu-containing sulfides (including possibly est 1.95(60,120),1.580(70,103), and 1.160(60,212).The new the 3P and 6P homologs, for which microprobe analyses name is for locality. Type material is in the Geological are given) in diopside-chondrodite-grossular-andradite the Museum Beijing.J.L.J. skarns(Romania), and with sulfosaltsand sulfidesin the of China, tungsten deposit at Felbertal, Austria. The new name is for Emil Makovicky of the University of Copenhagen, Denmark. Type material is in the Mineralogical Collec- Sodium meta-autunite,*sodium autunite tion of the Faculty of Science,Charles University, Praha, A.A. Tschernikov, N.I. Organova (1994) Sodium autun- and in the National Museum, Praha (Prague). ite and sodium meta-autunite. Doklady Akad. Nauk, Discussion.Initial data defining the unnamed mineral 338(3),368-371 (in Russian). were abstractedin Am. Mineral.. 76, 669-670 (1991). Fully hydrated sodium autunite contains not less than J.L.J. 14-16 moleculesof HrO (analyzedby weight loss) and hasthe formula Nar(UO,),(POo)r'10-l6HrO. It is stable only under underground mine conditions and decompos- Protoantigorite esinto sodium meta-autuniteNar(UO2)r(PO4)r' 6-8HrO N.N.
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