Hillite, a New Member of the Fairfieldite Group: Its Description and Crystal Structure
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L. Jahnsite, Segelerite, and Robertsite, Three New Transition Metal Phosphate Species Ll. Redefinition of Overite, an Lsotype Of
American Mineralogist, Volume 59, pages 48-59, 1974 l. Jahnsite,Segelerite, and Robertsite,Three New TransitionMetal PhosphateSpecies ll. Redefinitionof Overite,an lsotypeof Segelerite Pnur BnnN Moone Thc Departmcntof the GeophysicalSciences, The Uniuersityof Chicago, Chicago,Illinois 60637 ilt. lsotypyof Robertsite,Mitridatite, and Arseniosiderite Peur BmaN Moonp With Two Chemical Analvsesbv JUN Iro Deryrtrnent of GeologicalSciences, Haraard Uniuersity, Cambridge, Massrchusetts 02 I 38 Abstract Three new species,-jahnsite, segelerite, and robertsite,-occur in moderate abundance as late stage products in corroded triphylite-heterosite-ferrisicklerite-rockbridgeite masses, associated with leucophosphite,hureaulite, collinsite, laueite, etc.Type specimensare from the Tip Top pegmatite, near Custer, South Dakota. Jahnsite, caMn2+Mgr(Hro)aFe3+z(oH)rlPC)oln,a 14.94(2),b 7.14(l), c 9.93(1)A, p 110.16(8)", P2/a, Z : 2, specific gavity 2.71, biaxial (-), 2V large, e 1.640,p 1.658,t l.6lo, occurs abundantly as striated short to long prismatic crystals, nut brown, yellow, yellow-orange to greenish-yellowin color.Formsarec{001},a{100},il2oll, jl2}ll,ft[iol],/tolll,nt110],andz{itt}. Segeierite,CaMg(HrO)rFes+(OH)[POdz, a 14.826{5),b 18.751(4),c7.30(1)A, Pcca, Z : 8, specific gaavity2.67, biaxial (-), 2Ylarge,a 1.618,p 1.6t5, z 1.650,occurs sparingly as striated yellow'green prismaticcrystals, with c[00], r{010}, nlll0l and qll2l } with perfect {010} cleavage'It is the Feg+-analogueofoverite; a restudy on type overite revealsthe spacegroup Pcca and the ideal formula CaMg(HrO)dl(OH)[POr]r. Robertsite,carMna+r(oH)o(Hro){Ponlr, a 17.36,b lg.53,c 11.30A,p 96.0o,A2/a, Z: 8, specific gravity3.l,T,cleavage[l00] good,biaxial(-) a1.775,8 *t - 1.82,2V-8o,pleochroismextreme (Y, Z = deep reddish brown; 17 : pale reddish-pink), @curs as fibrous massesand small wedge- shapedcrystals showing c[001 f , a{1@}, qt031}. -
38Th RMS Program Notes
E.fu\wsoil 'og PROGRAM Thursday Evening, April 14, 2011 PM 4:00-6:00 Cocktails and Snacks – Hospitality Suite 400 (4th Floor) 6:00-7:45 Dinner – Baxter’s 8:00-9:15 THE GUALTERONI COLLECTION: A TIME CAPSULE FROM A CENTURY AGO – Dr. Renato Pagano In 1950, the honorary curator of the Museum of Natural History in Genoa first introduced Dr. Renato Pagano to mineral collecting as a Boy Scout. He has never looked back. He holds a doctorate in electrical engineering and had a distinguished career as an Italian industrialist. His passion for minerals has produced a collection of more than 13,000 specimens, with both systematic and aesthetic subcollections. His wife Adriana shares his passion for minerals and is his partner in collecting and curating. An excellent profile of Renato, Adriana, and their many collections appeared earlier this year in Mineralogical Record (42:41-52). Tonight Dr. Pagano will talk about an historic mineral collection assembled between 1861 and 1908 and recently acquired intact by the Museum of Natural History of Milan. We most warmly welcome Dr. Renato Pagano back to the speakers’ podium. 9:15 Cocktails and snacks in the Hospitality Suite on the 4th floor will be available throughout the rest of the evening. Dealers’ rooms will be open at this time. All of the dealers are located on the 4th floor. Friday Morning, April 15, 2011 AM 9:00 Announcements 9:15-10:15 CRACKING THE CODE OF PHLOGOPITE DEPOSITS IN QUÉBEC (PARKER MINE), MADAGASCAR (AMPANDANDRAVA) AND RUSSIA (KOVDOR) – Dr. Robert F. Martin Robert François Martin is an emeritus professor of geology at McGill University in Montreal. -
Raman and Infrared Spectroscopy of Arsenates of the Roselite and Fairfeldite Mineral Subgroups
This may be the author’s version of a work that was submitted/accepted for publication in the following source: Frost, Ray (2009) Raman and infrared spectroscopy of arsenates of the roselite and fair- feldite mineral subgroups. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 71(5), pp. 1788-1794. This file was downloaded from: https://eprints.qut.edu.au/17596/ c Copyright 2009 Elsevier Reproduced in accordance with the copyright policy of the publisher. Notice: Please note that this document may not be the Version of Record (i.e. published version) of the work. Author manuscript versions (as Sub- mitted for peer review or as Accepted for publication after peer review) can be identified by an absence of publisher branding and/or typeset appear- ance. If there is any doubt, please refer to the published source. https://doi.org/10.1016/j.saa.2008.06.039 QUT Digital Repository: http://eprints.qut.edu.au/ Frost, Ray L. (2009) Raman and infrared spectroscopy of arsenates of the roselite and fairfieldite mineral subgroups. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 71(5). pp. 1788-1794. © Copyright 2009 Elsevier Raman and infrared spectroscopy of arsenates of the roselite and fairfieldite mineral subgroups Ray L. Frost• Inorganic Materials Research Program, School of Physical and Chemical Sciences, Queensland University of Technology, GPO Box 2434, Brisbane Queensland 4001, Australia. Abstract Raman spectroscopy complimented with infrared spectroscopy has been used to determine the molecular structure of the roselite arsenate minerals of the roselite and 2+ fairfieldite subgroups of formula Ca2B(AsO4)2.2H2O (where B may be Co, Fe , Mg, 2- Mn, Ni, Zn). -
Mineralogy and Crystal Structure of Bouazzerite from Bou Azzer, Anti-Atlas, Morocco: Bi-As-Fe Nanoclusters Containing Fe3+ in Trigonal Prismatic Coordination
American Mineralogist, Volume 92, pages 1630–1639, 2007 Mineralogy and crystal structure of bouazzerite from Bou Azzer, Anti-Atlas, Morocco: Bi-As-Fe nanoclusters containing Fe3+ in trigonal prismatic coordination JOËL BRUGGER,1,* NICOLAS MEISSER,2 SERGEY KRIVOVICHEV,3 THOMAS ARMBRUSTER,4 AND GEORGES FAVREAU5 1Department of Geology and Geophysics, Adelaide University, North Terrace, SA-5001 Adelaide, Australia and South Australian Museum, North Terrace, SA-5000 Adelaide, Australia 2Musée Géologique Cantonal and Laboratoire des Rayons-X, Institut de Minéralogie et Géochimie, UNIL-Anthropole, CH-1015 Lausanne- Dorigny, Switzerland 3Department of Crystallography, St. Petersburg State University, University Emb. 7/9, 199034 St. Petersburg, Russia 4Laboratorium für chemische und mineralogische Kristallographie, Universität Bern, Freiestrasse 3, CH-3012 Bern, Switzerland 5421 Avenue Jean Monnet, 13090 Aix-en-Provence, France ABSTRACT Bouazzerite, Bi6(Mg,Co)11Fe14[AsO4]18O12(OH)4(H2O)86, is a new mineral occurring in “Filon 7” at the Bou Azzer mine, Anti-Atlas, Morocco. Bouazzerite is associated with quartz, chalcopyrite, native gold, erythrite, talmessite/roselite-beta, Cr-bearing yukonite, alumopharmacosiderite, powellite, and a blue-green earthy copper arsenate related to geminite. The mineral results from the weathering of a Va- riscan hydrothermal As-Co-Ni-Ag-Au vein. The Bou Azzer mine and the similarly named district have produced many outstanding mineral specimens, including the world’s best erythrite and roselite. Bouazzerite forms monoclinic prismatic {021} crystals up to 0.5 mm in length. It has a pale 3 apple green color, a colorless streak, and is translucent with adamantine luster. dcalc is 2.81(2) g/cm (from X-ray structure refi nement). -
New Mineral Names*,†
American Mineralogist, Volume 106, pages 1360–1364, 2021 New Mineral Names*,† Dmitriy I. Belakovskiy1, and Yulia Uvarova2 1Fersman Mineralogical Museum, Russian Academy of Sciences, Leninskiy Prospekt 18 korp. 2, Moscow 119071, Russia 2CSIRO Mineral Resources, ARRC, 26 Dick Perry Avenue, Kensington, Western Australia 6151, Australia In this issue This New Mineral Names has entries for 11 new species, including 7 minerals of jahnsite group: jahnsite- (NaMnMg), jahnsite-(NaMnMn), jahnsite-(CaMnZn), jahnsite-(MnMnFe), jahnsite-(MnMnMg), jahnsite- (MnMnZn), and whiteite-(MnMnMg); lasnierite, manganflurlite (with a new data for flurlite), tewite, and wumuite. Lasnierite* the LA-ICP-MS analysis, but their concentrations were below detec- B. Rondeau, B. Devouard, D. Jacob, P. Roussel, N. Stephant, C. Boulet, tion limits. The empirical formula is (Ca0.59Sr0.37)Ʃ0.96(Mg1.42Fe0.54)Ʃ1.96 V. Mollé, M. Corre, E. Fritsch, C. Ferraris, and G.C. Parodi (2019) Al0.87(P2.99Si0.01)Ʃ3.00(O11.41F0.59)Ʃ12 based on 12 (O+F) pfu. The strongest lines of the calculated powder X-ray diffraction pattern are [dcalc Å (I%calc; Lasnierite, (Ca,Sr)(Mg,Fe)2Al(PO4)3, a new phosphate accompany- ing lazulite from Mt. Ibity, Madagascar: an example of structural hkl)]: 4.421 (83; 040), 3.802 (63, 131), 3.706 (100; 022), 3.305 (99; 141), characterization from dynamic refinement of precession electron 2.890 (90; 211), 2.781 (69; 221), 2.772 (67; 061), 2.601 (97; 023). It diffraction data on submicrometer sample. European Journal of was not possible to perform powder nor single-crystal X-ray diffraction Mineralogy, 31(2), 379–388. -
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NEW MINERAL NAMES Fleischerite. Itoite C, FnoNnrr, lNo H. SrnuNz. Fleischerit und Itoit, zwei neue Germanium-Mineralien von Tsumeb. Neues Johrb. Mineral., Montash' 1960, 132-142 (English summary)' The minerals were found in the upper oxidation zone of the Tsumeb Mine, associated with cerussite, mimetite, and altered tennantite, also as a crust on plumbojarosite and mimetite on dolomite. A preliminary description of fleischerite (unnamed) was given by Frondel and Ito in Am. Minual 42,747 (1957). Fleischerite occurs as white to pale rose fibrous aggregates, with silky luster. Analysis 11'35, by Jun Ito gave PbO 63.34, GeO 818, GazOr 0.86, Fe:Or 005, SOr 1506, HrO+ HsO- 0.21, insol. 0.56, stm99.61/6, corresponding to Pb3Ge{(OH)4(SOrr'4HrO. Oscillation, rotation, and Laue photographs show fleischerite to be hexagonal, space group probably P$fmmc, o0 8.89, c010.86L Z:Z.Indexed r-ray powder data are given; the strongest lines are 3.619 (10), 2.635 (8), 3.437 (6) , 2.214 (6) , 1.889 (6). No cleavagewas observed. G. 4.2-4.4 (measured),4.59 (calcd.) Hardness low. Optically uniaxial, pos., ,?s e 1.776,u 1.747. Not fluorescentunder UV light, becomes rose-violet when irradiated with *-rays. DTA study showed a distinct endothermal effect at 263", a weak endothermal effect at 314", and a small exothermal effect at 463". When heated and observed under the micro- scope becomes turbid at l7 5-200" , inverts to an isotropic phase at 4650. When ground for a long time in an agate mortar, inverts to itoite by loss of water and oxidation of Ge{ to Ge++. -
Roscherite-Group Minerals from Brazil
■ ■ Roscherite-Group Minerals yÜÉÅ UÜté|Ä Daniel Atencio* and José M.V. Coutinho Instituto de Geociências, Universidade de São Paulo, Rua do Lago, 562, 05508-080 – São Paulo, SP, Brazil. *e-mail: [email protected] Luiz A.D. Menezes Filho Rua Esmeralda, 534 – Prado, 30410-080 - Belo Horizonte, MG, Brazil. INTRODUCTION The three currently recognized members of the roscherite group are roscherite (Mn2+ analog), zanazziite (Mg analog), and greifensteinite (Fe2+ analog). These three species are monoclinic but triclinic variations have also been described (Fanfani et al. 1977, Leavens et al. 1990). Previously reported Brazilian occurrences of roscherite-group minerals include the Sapucaia mine, Lavra do Ênio, Alto Serra Branca, the Córrego Frio pegmatite, the Lavra da Ilha pegmatite, and the Pirineus mine. We report here the following three additional occurrences: the Pomarolli farm, Lavra do Telírio, and São Geraldo do Baixio. We also note the existence of a fourth member of the group, an as-yet undescribed monoclinic Fe3+-dominant species with higher refractive indices. The formulas are as follows, including a possible formula for the new species: Roscherite Ca2Mn5Be4(PO4)6(OH)4 • 6H2O Zanazziite Ca2Mg5Be4(PO4)6(OH)4 • 6H2O 2+ Greifensteinite Ca2Fe 5Be4(PO4)6(OH)4 • 6H2O 3+ 3+ Fe -dominant Ca2Fe 3.33Be4(PO4)6(OH)4 • 6H2O ■ 1 ■ Axis, Volume 1, Number 6 (2005) www.MineralogicalRecord.com ■ ■ THE OCCURRENCES Alto Serra Branca, Pedra Lavrada, Paraíba Unanalyzed “roscherite” was reported by Farias and Silva (1986) from the Alto Serra Branca granite pegmatite, 11 km southwest of Pedra Lavrada, Paraíba state, associated with several other phosphates including triphylite, lithiophilite, amblygonite, tavorite, zwieselite, rockbridgeite, huréaulite, phosphosiderite, variscite, cyrilovite and mitridatite. -
Austinite Cazn(Aso4)(OH) C 2001-2005 Mineral Data Publishing, Version 1 Crystal Data: Orthorhombic
Austinite CaZn(AsO4)(OH) c 2001-2005 Mineral Data Publishing, version 1 Crystal Data: Orthorhombic. Point Group: 222. As enantiomorphous bladed crystals exhibiting {011}, {111}, {111}, {010} and several other forms, sometimes forming scepters. Also as radially fibrous crusts and nodules. Twinning: Left- and right-handed individuals joined on (100), with (010) and (001) coincident. Physical Properties: Cleavage: Good on {011}. Tenacity: Brittle. Hardness = 4–4.5 D(meas.) = 4.13 D(calc.) = [4.31] Optical Properties: Translucent to transparent. Color: Colorless, white to pale yellowish white, green. Luster: Subadamantine to silky in aggregates. Optical Class: Biaxial (+). Orientation: X = a; Y = c; Z = b. Dispersion: r> v,weak. α = 1.759(3) β = 1.763(3) γ = 1.783(3) 2V(meas.) = ∼45◦ Cell Data: Space Group: P 212121. a = 7.505–7.509 b = 9.037–9.046 c = 5.921–5.934 Z=4 X-ray Powder Pattern: Gold Hill, Utah, USA. 3.171 (10), 2.801 (10), 2.637 (10), 1.616 (9), 1.509 (7), 2.529 (6), 5.781 (5) Chemistry: (1) (2) (3) (1) (2) (3) P2O5 0.1 0.90 CaO 19.2 21.33 21.45 As2O5 42.7 42.85 43.96 H2O 3.6 [3.45] 3.45 FeO 0.49 insol. 2.4 CuO 0.88 Total 100.5 [100.00] 100.00 ZnO 32.5 30.10 31.14 (1) Gold Hill, Utah, USA; insoluble is quartz, some adamite adhering. (2) Kamariza mine, Greece; by electron microprobe, H2O by difference; corresponding to Ca1.00(Zn0.96Cu0.03 Fe0.01)Σ=1.00[(As0.97P0.03)Σ=1.00O4](OH). -
New Mineral Names*
American Mineralogist, Volume 66, pages 1274-1280, 1981 NEW MINERAL NAMES* MICHAEL FLEISCHER AND LOUIS J. CABRI Cyanophillite* ar~ 3.350(50)(110), 3.:208(50)(020), 3.080 (80)(111), 2.781(100) (221,111), 2.750(70)(112), 1.721 (60). Kurt Walenta (1981) Cyanophillite, a new mineral from the Clara ~olor1ess to white, luster vitreous. Cleavages {010}, {OOI}, Mine, near Oberwolfach, Central Black Forest. Chem. der {OIl} good, not easily observed. Hardness about 5. Optically Erde, 40, 195-200 (in German). biaxial positive, ns ex= 1.713, /3 = 1.730, )' = 1.748, 2V +88° (89° Analyses gave CuO 36.3, 32.5; Ah03 8.5, -; Sb203 36.5, 38.3; calc.). Material with Zn:Mg = 1:1 is biaxial, neg., ns. ex= 1.689, H20 19.8; sum 101.1%, corresponding to 10CuO . 2Ah03 . 3Sb2 /3 = 1.707, )' = 1.727, 2V ~ 85°. 03 . 25H20. The mineral is dissolved readily by cold 1:1 HCI, The mineral occurs as coatings and small crystals, largest partly dissolved by 1: 1 HN03. Loss of weight when heated (%) dimension about 1 mm; on prosperite, adamite, and austinite 110° 3.4, 150° 9.5, 200° 19.8%. At 250° the mineral is decomposed from Tsumeb, Namibia. Forms observed {010}, {001}, {Oil}, also and turns black. {IOO}very small. X-ray study shows the mineral to be orthorhombic, space The name is for Robert I. Gait, Curator of Mineralogy, Royal group Pmmb, a = 11.82, b = 10.80, c = 9.64A, Z = 1, D 3.10 Ontario Museum, Toronto. Type material is at the Royal Ontario meas., 3.12 calc. -
Collinsite in Hydrothermal Assemblages Related to Carbonatites in the Kovdor Complex, Northwestern Russia
1081 The Canadian Mineralogist Vol. 39, pp. 1081-1094 (2001) COLLINSITE IN HYDROTHERMAL ASSEMBLAGES RELATED TO CARBONATITES IN THE KOVDOR COMPLEX, NORTHWESTERN RUSSIA RUSLAN P. LIFEROVICH§ Institute of Geosciences, University of Oulu, PL-3000, FIN-90014 Oulu, Finland YAKOV A. PAKHOMOVSKY, ALLA N. BOGDANOVA AND ELENA G. BALAGANSKAYA Geological Institute, Kola Science Centre, Russian Academy of Sciences, 14 Fersmana Street, 184200-RU Apatity, Russia KAUKO V.O. LAAJOKI AND SEPPO GEHÖR Institute of Geosciences, University of Oulu, PL-3000, FIN-90014 Oulu, Finland NIKITA V. CHUKANOV Institute of Chemical Physics, Russian Academy of Sciences, Chernogolovka, Moscow Region, 142432, Russia ABSTRACT Several generations of collinsite were formed during the hydrothermal alteration of phoscorite and dolomite carbonatite in the Kovdor alkaline-ultramafic complex, northwestern Russia. The collinsite at this locality shows isomorphic substitution of Sr for Ca at the A crystallographic site, which is atypical both for this species and for the entire fairfieldite group. The Sr content reaches 0.74 atoms per formula unit and shows an inverse correlation with Ca. Sr is found to account for no more than 37% of the total occupancy of the A site, a proportion that fits the Lewis acidity of interstitial cations, a value of 0.25 valence units (assuming a disordered distribution of Sr), which in turn matches the Lewis basicity of the structural unit in collinsite, the chain [Mg(PO4)2(H2O)2]. The collinsite-bearing assemblages were formed by juvenile hydrothermal solutions derived from phoscorites and carbonatites that had been cooling in a tectonically active environment. Textural evidence and strontium isotopic character- istics show that the assemblages were superimposed upon the host rocks after the cataclasis of the dolomite carbonatite and selective leaching of its primary minerals. -
Talmessite from the Uriya Deposit at the Kiura Mining Area, Oita Prefecture, Japan
116 Journal ofM. Mineralogical Ohnishi, N. Shimobayashi, and Petrological S. Kishi, Sciences, M. Tanabe Volume and 108, S. pageKobayashi 116─ 120, 2013 LETTER Talmessite from the Uriya deposit at the Kiura mining area, Oita Prefecture, Japan * ** *** Masayuki OHNISHI , Norimasa SHIMOBAYASHI , Shigetomo KISHI , † § Mitsuo TANABE and Shoichi KOBAYASHI * 12-43 Takehana Ougi-cho, Yamashina-ku, Kyoto 607-8082, Japan **Department of Geology and Mineralogy, Graduate School of Science, Kyoto University, Kitashirakawa Oiwake-cho, Sakyo-ku, Kyoto 606-8502, Japan *** Kamisaibara Junior High School, 1320 Kamisaibara, Kagamino-cho, Tomada-gun, Okayama 708-0601, Japan † 2058-3 Niimi, Niimi, Okayama 718-0011, Japan § Department of Applied Science, Faculty of Science, Okayama University of Science, 1-1 Ridai-cho, Kita-ku, Okayama 700-0005, Japan Talmessite was found in veinlets (approximately 1 mm wide) cutting into massive limonite in the oxidized zone of the Uriya deposit, Kiura mining area, Oita Prefecture, Japan. It occurs as aggregates of granular crystals up to 10 μm in diameter and as botryoidal aggregates up to 0.5 mm in diameter, in association with arseniosiderite, and aragonite. The talmessite is white to colorless, transparent, and has a vitreous luster. The unit-cell parame- ters refined from powder X-ray diffraction patterns are a = 5.905(3), b = 6.989(3), c = 5.567(4) Å, α = 96.99(3), β = 108.97(4), γ = 108.15(4)°, and Z = 1. Electron microprobe analyses gave the empirical formula Ca2.15(Mg0.84 Mn0.05Zn0.02Fe0.01Co0.01Ni0.01)∑0.94(AsO4)1.91·2H2O on the basis of total cations = 5 apfu (water content calculated as 2 H2O pfu). -
A Specific Gravity Index for Minerats
A SPECIFICGRAVITY INDEX FOR MINERATS c. A. MURSKyI ern R. M. THOMPSON, Un'fuersityof Bri.ti,sh Col,umb,in,Voncouver, Canad,a This work was undertaken in order to provide a practical, and as far as possible,a complete list of specific gravities of minerals. An accurate speciflc cravity determination can usually be made quickly and this information when combined with other physical properties commonly leads to rapid mineral identification. Early complete but now outdated specific gravity lists are those of Miers given in his mineralogy textbook (1902),and Spencer(M,i,n. Mag.,2!, pp. 382-865,I}ZZ). A more recent list by Hurlbut (Dana's Manuatr of M,i,neral,ogy,LgE2) is incomplete and others are limited to rock forming minerals,Trdger (Tabel,l,enntr-optischen Best'i,mmungd,er geste,i,nsb.ildend,en M,ineral,e, 1952) and Morey (Encycto- ped,iaof Cherni,cal,Technol,ogy, Vol. 12, 19b4). In his mineral identification tables, smith (rd,entifi,cati,onand. qual,itatioe cherai,cal,anal,ys'i,s of mineral,s,second edition, New york, 19bB) groups minerals on the basis of specificgravity but in each of the twelve groups the minerals are listed in order of decreasinghardness. The present work should not be regarded as an index of all known minerals as the specificgravities of many minerals are unknown or known only approximately and are omitted from the current list. The list, in order of increasing specific gravity, includes all minerals without regard to other physical properties or to chemical composition. The designation I or II after the name indicates that the mineral falls in the classesof minerals describedin Dana Systemof M'ineralogyEdition 7, volume I (Native elements, sulphides, oxides, etc.) or II (Halides, carbonates, etc.) (L944 and 1951).