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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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  • Oxidizing-Type Fumaroles of the Tolbachik Volcano, a Mineralogical and Geochemical Unique

    Oxidizing-Type Fumaroles of the Tolbachik Volcano, a Mineralogical and Geochemical Unique

    Russian Geology and Geophysics © 2020, V.S. Sobolev IGM, Siberian Branch of the RAS Vol. 61, No. 5-6, pp. 675–688, 2020 DOI:10.15372/RGG2019167 Geologiya i Geofizika Oxidizing-Type Fumaroles of the Tolbachik Volcano, a Mineralogical and Geochemical Unique I.V. Pekova,b, , A.A. Agakhanovс, N.V. Zubkovaa, N.N. Koshlyakovaa, N.V. Shchipalkinaa, F.D. Sandalova, V.O. Yapaskurta, A.G. Turchkovaa, E.G. Sidorovd a Lomonosov Moscow State University, Leninskie Gory 1, Moscow, 119991, Russia b Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences, ul. Kosygina 19, Moscow, 119991, Russia c Fersman Mineralogical Museum, Leninskii pr. 18/2, Moscow, 119071, Russia d Institute of Volcanology and Seismology, Far Eastern Branch of the Russian Academy of Sciences, bul. Piipa 9, Petropavlovsk-Kamchatsky, 683006, Russia Received 1 July 2019; accepted 28 August 2019 Abstract—We overview recent data on the mineralogy of oxidizing-type fumaroles of the Tolbachik Volcano (Kamchatka, Russia), with the main focus on the chemical specifics of the minerals. The active fumarole fields of Tolbachik are the most prominent mineral- forming exhalative system of this type in the world. About 350 mineral species, including 123 minerals first discovered here, are reliably identified in the Tolbachik fumaroles. The species diversity and the specifics of this mineralization are due to the unique combination of the physicochemical conditions and mechanisms of its formation: high temperatures, atmospheric pressure, superhigh oxygen fugacity, gas transport of most of chemical elements, and direct deposition of many high-temperature minerals from volcanic gases with a specific geo- chemical composition, including strong enrichment in alkaline metals and chalcophile (“ore”) elements.
  • X-Ray Crystallography of Weloganite

    X-Ray Crystallography of Weloganite

    Canadian Mineralogist Vol. 13, pp. 22-26 (1975) X-RAY CRYSTALLOGRAPHYOF WELOGANITE T. T. CHEN AND G. Y. CHAO Department of Geology, Caileton ()nLversity, Ottawa, Ontario KIS 5B6 ArsrRAc"r cvystal .r-ray studies. It was hoped that once tle cell geometry of weloganite Single-crystalr-ray studies of weloganite showed was established the cell parameters of the unknown yttrium mineral tlat the mineral is triclinic, PL ot pi, with a - might be derived from tle powder q:9-8q(.1),,: 8.988(1), : diffrastion c 6.730(t)A,a : data by its l0-2.84(r), p : tt6.42e) and - isomorphous relationship to weio- ? 59.99(1)..'sub- ganite. Weloganite has a pronounced rhombohedral cell which resemblesin geometry that of rhombo- The problems of weloganite may be outlined hedral carbonates.It also displays a pseudo-mono- ao follows: clinic cell that, correspondsto the cell reported by (1) The space group P3r, s is one of the few in other authors for the monoclinic polytypo of welo- which no minerals and only a few chemical com- ganite. Twinning by [103]r:oois very common, with pounds are found, as Sabina et al. (7968) twin - cor- obliquity @ = 0 and twin index r 3. The rectly pointed out. twin cell is trigonal and is identical to the cell orig- (2) If the published chemical analyses and space inally assignedto weloganite. The ideal chemical group symmetry (Sabina et al. formula for weloganite is proposed as Narsrlr L968; Gait & - Grice 1971) (COs)B.3Hrowith Z - 1 for the triclinic cell. are correct they would require the positional disorder of Sr, Na andZr atomswhich IutnopuctroN crystal-chemically are drastically different.
  • The Calcination Behaviour of Fine-Sized Colemanite and Ulexite

    The Calcination Behaviour of Fine-Sized Colemanite and Ulexite

    ISSN 2321 3361 © 2019 IJESC Research Article Volume 9 Issue No. 7 The Calcination Behaviour of Fine -Sized Colemanite and Ulexite Ore Under Conventional Heat Treatment Hoskan, Samil Graduate Student Department of Mining Engineering Dokuz Eylül University, İzmir, Turkey Abstract: Because waste material stroges and their enviromental problems are main problem in mining, re-use and evalaution of wastes are reasonable solutions. In this study, fine sized ( -3mm) waste Colemanite and Ulexite ores were exposured to conventional heat treatment in a spesific time (15-60 minute) to determine behaviour of ores under heat range bet ween 450C -600C. İn this study, beside measuring Boron calcination behaviour, it is targeted that seperating calcinated Boron minerals from unwanted minerals such as clay and calcite by screening. In order to make physical and chemical characterization of t he material to be used within the scope of experiments, 50 kg of Colemanite and Ulexite ore were taken and it was determined that 22,8% and 27,53% B2O3 grade respectively in chemical analysis. The sieve analysis of the samples were performed to determine c haracterization of the samples. The materials were dried and divided into 1 kg samples with cross -groove divider. After that, each 1 kg of samples were divided in to 125’gr of representative samples with small size cross -sectioned slicers and packaged for the planned experiments. Key words: Colemanite, Ulexite, Heat Treatment, Calcination, Boron . 1. INTRODUCTION were chosen on stock area and samples were taken from these locations. Boron combines with oxides and alkali ions in the earth crust to form minerals such as colemanite and ulexite.