DOCSLIB.ORG

New Mineral Names*

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text

Load more

American Mineralogist, Volume 79, pages 185-189, 1994 NEW MINERAL NAMES* JonN L. Ja.rvnon Department of Earth Sciences,University of Waterloo, Waterloo, Ontario N2L 3Gl, Canada EowlRD S. Gnnw Department of Geological Sciences,University of Maine, Orono, Maine 04469, U.S.A. Gatehouseite* Wet-chemicalanalyses gave MgO 5.29, 8.5 2, MnO 8.02, A. Pring, W.D. Birch (1993) Gatehouseite,a new man- 0.92,MnO, 67.65,68.49,CaO1.97,2.03, SiO, 1.20,3.94, ganesehydroxy phosphate from Iron Monarch, South Al,O,0.78,0.91,PrO,0.59, 1.63, Fe,Or 0.52, 1.41, H2O+ Australia.Mineral. Mag., 57, 309-313. 13.37, 12.60,sum 99.39, 100.45wt0/0, corresponding to (Mgo'Mno ooCaoor)r, orMnjfi 30 ^o' 2.90H2O and (Mgorr- Electron microprobe analysis gave MnO 64.42, FeO Mnoor)"o roMn 1150? r0.2.80HrO, ideally (Mg,Mn)Mni*- 0.19,CuO 0.03,ZnO 0.03,PbO 0.05,AlrO3 PrO, 0.10, O?.3HrO. Occursas soft, porousaggregates and massive 22.18,V2Os 0.38, As,O, 3.58,HrO..," 6.44, sum 97.40 ore in which individual grains are up to I x 5 rrm. Color wto/0,corresponding to Mn,onFeoo,Al0o,(P, rrAso,r- brown to brownishblack, opaqus,D*."" : 3.60(l) g/cm3, Voor)", ideally Mnr(POo)r(OH)o. roo8(OH)ooo, Occurs as D"",. : 3.598 g/cml for Z : 2. Grayish white in reflected pale yellow, and yellow to pale brownish orangeradiating light, distinct anisotropism, brown internal reflection. to divergent bladed 100 pm crystals up to long; individ- Reflectanceswere measuredon a compressedpellet; mean ualsare elongate showingmainly 102}, I l0}, [010], { { and valuesin air (SiC standard)are 23.0 (470 nm), 19.9(546 Adamantine luster, transparent,pale yellow {001}. streak, nm), l9.l (589nm), and 18.6(650 nm). The DTA pattern H : 4, splintery fracture, distinct cleavage,some {010} has strong endothermic reactionsat 230 and 635 "C, the grains twinned on D*r" : for {001}, 3.14 the empirical former correspondingto HrO loss, and the latter to Mn formula, 3.85 g/cm3 for the ideal formula witt. : Z 4. oxidation and changeof structure.The X-ray powder pat- Optically biaxial, sign uncertain, length parallel slow, ex- tern is like that ofchalcophanite, which by analogy and tinction, refractiveindices in two directions,1.74(l) and Rietveld refinement gave triclinic symmetry, spacegroup 1.76(l), distinctly pleochroicfrom brown to nearly col- PI, a:7.534(4), b:7.525(6), c:8.204(8) A, a: orless. TEM patterns and analogy with synthetic 89.753(8),P : 117.375(6),t : 120.000(6)'.Strongest Mn,(POo)r(OH)oindicate that mineral the is orthorhom- lines of the powder pattern are 6.965(100,00l), bic, spacegroup P2,2,2,; a: 9.097(2), : b: 5.693(2),c 5.539(8,100,111), 4.086(8,01l,l02,l I l, 3.483(lr,002), 18.002(10)A as refined from the powder pattern (100- 2.449(7,312,t 21 .230), and 2.230(23,I 20.3T3,23 I ). The mm Guinier-Higg, radiation) CrKa, with strongestlines infrared spectrum is similar to that of chalcophanite. of 2.900(100,1l5), 2.853(70,106), 2.802(50,021), The new mineral is a hypogenephase associated with 2.702(80,303), 2.022(1 I 5,322),and .608( I 5,3 3 0). various hydrated manganeseoxide samplesin manganese The mineral, which also occurs as overgrowths on ar- ore near Lu village, Jianshui County, Yunnan Province, senoclasite,is the P analogue of arsenoclasite.The new China. The name is derived from the locality. Type ma- name is for Bryan M.K.C. Gatehouse(b. 1932), crystal terial is in the Museum of Geology, Beijing, and in the chemistat Monash Melbourne, University, Australia. The GeologyExhibit Museum,Yunnan. J.L.J. mineral was found in cavities in a matrix of hematite, hausmannite,barite, and carbonatesat the Iron Monarch Precambrian sedimentaryiron ore deposit, northern end Manganosegelerite* of the Middleback Ranges,South Australia. Type mate- rial is in the South Australian Museum at Adelaide and A.V. Voloshin, Ya.A. Pakhomovskiy, F.N. Tyusheva in the Museum of Victoria, Melbourne. J.L.J. (l 99 2) Manganosegelerite(Mn,Ca)(Mn,Fe,Mg)Fe3* (PO.)r(OH).4HrO: A new phosphateof the overite group from granitic pegmatitesof the Kola Peninsula. Jianshuiite* Zapiski Vses.Mineral. Obshch.,l2l(2),95-103 (in Russian). Guiyan Yan, ShanghuaZhang, Mingkai Zhao, Jianping Ding, Deyu Li (1992) Jianshuiite:A new magnesium Electron microprobe analysesof three grainsgave MnO mineral of the chalcophanitegroup. Acta Mineral. Sin- 16.20,15.36, 16.37, CaO 5.33, 5.04, 5.14,MgO 2.60, ica,l2(l),69-77 (in Chinese,English abs.). 2.93,2.83,Fe as Fe,O, 24.04,18.31,22.61, A1rO30,6.34, 1.48,P2O5, 33.04, 35.03, 33.2l,I{rO (bydifference) 18.79, *Before publication, minerals marked with an asterisk were 16.99,18.36, sum 100wto/0. The third analysis,after nor- approved by the Commission on New Minerals and Mineral malizalion to 2P and I (Fe:* + Al) and adjustment of Names, International Mineralogical Association. the Fe2+/Fe3+ratio to fit the stoichiometry, corresponds ooo3404x/ 94/0 I 02-o I 85$02.00 185 r86 JAMBOR AND GREW: NEW MINERAL NAMES to (Mnou,Cao.rn)r,.oo(Mno 38FefrjrMgo ro)", o,(FedirAlo ,r)- 104.90(2f. Strongestlines ofthe powder pattern [report- ,, 00(POn),(OH).4.04HrO, ideally(Mn,Ca)(Mn,Fe'z*, ed fully only in Della Ventura et a1.,Periodico Miner- Mg)Fe3+(PO.)r(OH). 4HrO. The infraredspectrum is al. (52, 617-630)l are8.49(95,1 l0), 3.288(80,240), characterizedby features characteristic of both OH and 3.166(100,310),2.831(60,330), 1.918(20,510), and HrO; the strongestabsorption bands (15 reported) are at r.633(t5,62r). 3440,1660,I 150, I 100, 1050,600, and 475 cm '. Oc- The new mineral is associatedwith calcite and diopside curs as fine-grainedaggregates (to 2 mm across)ofpoorly in a skarn ejectum occurring in pyroclastsnear San Vito, developed prismatic individuals up to 0.05 mm across. Monte Somma, Naples, Italy. Known also as a synthetic Yellow or yellow-greencolor, yellow streak,vitreous lus- phase. Type material is in the Museo di Mineralogia, ter, H : 3-4, transparentin thin grains,imperfect {001} University of Rome, Rome, Italy. J.L.J. cleavage.D-..": 2.76(3)by heavyliquids, D.,.:2.74 g/cm3for Z : 8. Opticallybiaxial positive,a: 1.657(l), Stibiocolusite* P : 1.668(l),t : 1.691(2),2V*"^,: 75(5),2V^,. : 70; (1992) marked dispersion, r < v; orientation ,y : Y, P : X, ot: E.M. Spiridonov, A.S. Badalov, V.V. Kovachev StibiocolusiteCuruVr(Sb,Sn,As)uSrr: A new mineral. Z, pleochroism a : yellow, 7 : light yellow. Single-crys- Akad. Nauk, 324(2),411-414 (in Russian). tal studies were not possible. By analogy with the iso- Doklady structural minerals oliverite and segelerite,the symme- Four electron microprobe analysesof specimensfrom tery is inferred to be orthorhombic, spacegroup Pbca, a Kayragach (first three values) and Chelopech gave Cu : 14.89(l),r: 18.79(l),c:7.408(fi A from powder 48.53,49.32, 49.05, 46.7 4, Fe 0.90,0.92, 0.87, 1.68, Mn data (ll4-mm camera,Fe radiation). Strongestlines in 0.04,0.02,0.06,0.10, Co 0.01,0.01, 0, 0, Ag 0.01,0, the pattern (37 given) are 9.39(100,020),4.70(50,040), 0.01,0.03, v 3.18,3.24, 2.96,3.02, Sb 8.27 ,7 .83,1.91, 2.97 (40,302), 2.86(90,1 42), 2.60(40,4 | 2,r 52), 2.0| 9- 9.87,As 3.87,3.69,3.83,3.35, Sn 6.80,5.47, 6.68, 5.23, (40,622),1.966(50,182), and 1.880(50,661,0.10.0). Ge 0.14,0.15,0.08,0.37,Mo 0.53,0.52,0.51,trace, S Occurson accumulationsof mitridatite in late fractures 29.73,29.65, 29.20, 30.06,sum 102.01, 100.82, l0l.l6, in granitic pegmatitesof the Kola Peninsula,Russia; also 100.45 wtol0. The Kayragach analyses correspond to locally developed from lunjokite, replacing it in pseudo- CuruVr(Sbr'Sn,noAs,,r)"uSrr, and both fit Cu2uV2- morphs. Other associatedminerals are eosphorite,kings- (Sb,Sn,As)uSrr.Reflectance values (Si standard, air) are mountite, and manganoan gordonite. The new name is given in 20-nm intervals from 400 to 700 nm; represen- for the Mn analogueof segelerite.Samples have been de- tativevalues are 400 22.5,44023.8, 480 25.5,520 27.1, posited in the Fersman Mineralogical Museum, Moscow. 58029.5, 600 30.1, 640 31.0, 700 31.1. The mineralforms E.S.G. oval segregations5-15 (rarely 80) pm acrossin tetrahe- drite (Kayragach)and rounded grains up to 40 pm across in enargite and luzonite. Dark glay color, gray streak, Potassium-fluor-richterite* metallic luster, VHN, o : 273 (range 260-285), no cleav- G. Della Ventura, G.C. Parodi, A. Maras (1992) Potas- age, conchoidal fracture, D*r. : 4.66 g/crn3 for Z : I sium-fluor-richterite, a new amphibole from San Vito, (Kayragach).In reflectedlight, light gray with light brown Monte Somma,Compania, Italy. Rendiconti Lincei, Sci. or rose-brown tint.
Recommended publications
  • L. Jahnsite, Segelerite, and Robertsite, Three New Transition Metal Phosphate Species Ll. Redefinition of Overite, an Lsotype Of

    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}.
  • Thermal Behavior of Afghanite, an ABABACAC Member of the Cancrinite Group

    Thermal Behavior of Afghanite, an ABABACAC Member of the Cancrinite Group

    American Mineralogist, Volume 97, pages 630–640, 2012 Thermal behavior of afghanite, an ABABACAC member of the cancrinite group PAOLO BALLIRANO1,2,* AND FERDINANDO BOSI1,3 1Dipartimento di Scienze della Terra, Sapienza Università di Roma, P.le Aldo Moro 5, I-00185, Roma, Italy 2CNR-IGAG, Istituto di Geologia Ambientale e Geoingegneria, Sede di Roma, Via Bolognola 7, I-00138 Roma, Italy 3CNR-IGG Istituto di Geoscienze e Georisorse, Sede di Roma, P.le A. Moro, 5, I-00185 Roma, Italy ABSTRACT Thermal behavior of afghanite, (Na15K5Ca11)Σ31[Si24Al24O96](SO4)6Cl6, P31c, a = 12.7961(7) Å, c = 21.4094(13) Å, an eight-layer member of the cancrinite group, has been investigated by combined electron microprobe analysis, X-ray single-crystal diffraction, and high-temperature X-ray powder diffraction. Non-ambient X-ray powder diffraction data were collected in the 323–1223 K thermal range on a specimen from Case Collina, Latium, Italy. Structural refinement and site assignment based on the bond-valence analysis, performed on room-temperature single-crystal X-ray diffraction data, provided more accurate site allocation of cations than the available model in the literature. The results show that the cancrinite cages alternating with the liottite cages are more compressed along the c-axis than the remaining ones. As a result the chlorine atom, located at the center of the cages, is driven off-axis to release the steric strain due to the cage compression. Thermal expansion shows a discontinuity at 448 K for both a and c unit-cell parameters, a feature previously reported for other cancrinite-like minerals.
  • Mineral Processing

    Mineral Processing

    Mineral Processing Foundations of theory and practice of minerallurgy 1st English edition JAN DRZYMALA, C. Eng., Ph.D., D.Sc. Member of the Polish Mineral Processing Society Wroclaw University of Technology 2007 Translation: J. Drzymala, A. Swatek Reviewer: A. Luszczkiewicz Published as supplied by the author ©Copyright by Jan Drzymala, Wroclaw 2007 Computer typesetting: Danuta Szyszka Cover design: Danuta Szyszka Cover photo: Sebastian Bożek Oficyna Wydawnicza Politechniki Wrocławskiej Wybrzeze Wyspianskiego 27 50-370 Wroclaw Any part of this publication can be used in any form by any means provided that the usage is acknowledged by the citation: Drzymala, J., Mineral Processing, Foundations of theory and practice of minerallurgy, Oficyna Wydawnicza PWr., 2007, www.ig.pwr.wroc.pl/minproc ISBN 978-83-7493-362-9 Contents Introduction ....................................................................................................................9 Part I Introduction to mineral processing .....................................................................13 1. From the Big Bang to mineral processing................................................................14 1.1. The formation of matter ...................................................................................14 1.2. Elementary particles.........................................................................................16 1.3. Molecules .........................................................................................................18 1.4. Solids................................................................................................................19
  • Marinellite, a New Feldspathoid of the Cancrinite-Sodalite Group

    Marinellite, a New Feldspathoid of the Cancrinite-Sodalite Group

    Eur. J. Mineral. 2003, 15, 1019–1027 Marinellite, a new feldspathoid of the cancrinite-sodalite group ELENA BONACCORSI* and PAOLO ORLANDI Dipartimento di Scienze della Terra, Universita` di Pisa, Via S. Maria 53, I-56126 Pisa, Italy * Corresponding author, e-mail: [email protected] Abstract: Marinellite, [(Na,K)42Ca6](Si36Al36O144)(SO4)8Cl2·6H2O, cell parameters a = 12.880(2) Å, c = 31.761(6) Å, is a new feldspathoid belonging to the cancrinite-sodalite group. The crystal structure of a twinned crystal was preliminary refined in space group P31c, but space group P62c could also be possible. It was found near Sacrofano, Latium, Italy, associated with giuseppettite, sanidine, nepheline, haüyne, biotite, and kalsilite. It is anhedral, transparent, colourless with vitreous lustre, white streak and Mohs’ hardness of 5.5. The mineral does not fluoresce, is brittle, has conchoidal fracture, and presents poor cleavage on {001}. Dmeas is 3 3 2.405(5) g/cm , Dcalc is 2.40 g/cm . Optically, marinellite is uniaxial positive, non-pleochroic, = 1.495(1), = 1.497(1). The strongest five reflections in the X-ray powder diffraction pattern are [d in Å (I) (hkl)]: 3.725 (100) (214), 3.513 (80) (215), 4.20 (42) (210), 3.089 (40) (217), 2.150 (40) (330). The electron microprobe analysis gives K2O 7.94, Na2O 14.95, CaO 5.14, Al2O3 27.80, SiO2 32.73, SO3 9.84, Cl 0.87, (H2O 0.93), sum 100.20 wt %, less O = Cl 0.20, (total 100.00 wt %); H2O calculated by difference. The corresponding empirical formula, based on 72 (Si + Al), is (Na31.86K11.13Ca6.06) =49.05(Si35.98Al36.02)S=72O144.60(SO4)8.12Cl1.62·3.41H2O.
  • Scandiobabingtonite, a New Mineral from the Baveno Pegmatite

    Scandiobabingtonite, a New Mineral from the Baveno Pegmatite

    American Mineralogist, Volume 83, pages 1330-1334, 1998 Scandiobabingtonite,a new mineral from the Bavenopegmatite, Piedmont, Italy Ploro ORl.tNnIrr'* Ma,nco PasERorr and GrovlNNa Vn,zzllrNr2 rDipartimento di Scienzedella Terra, Universitd di Pisa, Via S. Maria 53,1-56126 Pisa, Italy '?Dipartimento di Scienzedella Terra, Universitd di Modena, Via S Eufemia 19, I-41 100 Modena, Italy Ansrntcr Scandiobabingtonite,ideally Ca,(Fe,*,Mn)ScSi,O,o(OH) is the scandium analogue of babingtonite; it was found in a pegmatitic cavity of the Baveno granite associatedwith orthoclase, albite, muscovite, stilbite, and fluorite. Its optics are biaxial (+) with 2V : : ^v: 64(2)",ct 1.686(2),P: 1.694(3), 1.709(2).D-"." : 3.24(5)slcm3, D.",.:3.24 sl cm3, and Z : 2. Scandiobabingtoniteis colorless or pale gray-green, transparent,with vitreous luster. It occurs as submillimeter sized, short, tabular crystals, slightly elongated on [001],and characterizedby the associationof forms {010}, {001}, {110}, {110}, and {101}. It occurs also as a thin rim encrustingsmall crystals of babingtonite.The strongest lines in the X-ray powder pauern are at2.969 (S), 2.895 (S), 3.14 (mS), and 2.755 (mS) 4. fn" mineralis triclinic, ipu.. g.oup PT, with a : 7.536(2),b : 1L734(2),c : 6.t48(Z) A, : 91.10(2), : 93.86(2), : lO+.S:(2)'. Scandiobabingtoniteis isostructural " B r with babingtonite, with Sc replacing Fe3* in sixfold coordination, but no substitution of Fer* by Sc takes place. Due to the lack of a suitably large crystal of the new species, such a replacementhas been confirmed by refining the crystal structure of a Sc-rich babingtonite (final R : O.O47)using single-crystal X-ray diffraction (XRD) data.
  • 26 May 2021 Aperto

    26 May 2021 Aperto

    AperTO - Archivio Istituzionale Open Access dell'Università di Torino The crystal structure of sacrofanite, the 74 Å phase of the cancrinite–sodalite supergroup This is the author's manuscript Original Citation: Availability: This version is available http://hdl.handle.net/2318/90838 since Published version: DOI:10.1016/j.micromeso.2011.06.033 Terms of use: Open Access Anyone can freely access the full text of works made available as "Open Access". Works made available under a Creative Commons license can be used according to the terms and conditions of said license. Use of all other works requires consent of the right holder (author or publisher) if not exempted from copyright protection by the applicable law. (Article begins on next page) 05 October 2021 This Accepted Author Manuscript (AAM) is copyrighted and published by Elsevier. It is posted here by agreement between Elsevier and the University of Turin. Changes resulting from the publishing process - such as editing, corrections, structural formatting, and other quality control mechanisms - may not be reflected in this version of the text. The definitive version of the text was subsequently published in MICROPOROUS AND MESOPOROUS MATERIALS, 147, 2012, 10.1016/j.micromeso.2011.06.033. You may download, copy and otherwise use the AAM for non-commercial purposes provided that your license is limited by the following restrictions: (1) You may use this AAM for non-commercial purposes only under the terms of the CC-BY-NC-ND license. (2) The integrity of the work and identification of the author, copyright owner, and publisher must be preserved in any copy.
  • New Mineral Names*

    New Mineral Names*

    AmericanMineralogM, Volume66, pages 1099-l103,IgEI NEW MINERAL NAMES* LouIs J. Cetnt, MrcHeer FtnrscHnn AND ADoLF Pnssr Aldermanlter Choloallte. I. R. Harrowficl4 E. R. Segnitand J. A. Watts (1981)Alderman- S. A. Williams (1981)Choloalite, CuPb(TeO3)z .HrO, a ncw min- ite, a ncw magnesiumalrrminum phosphate.Mineral. Mag.44, eral. Miaeral. Mag. 44, 55-51. 59-62. Choloalite was probably first found in Arabia, then at the Mina Aldermanite o@urs as minute, very thin" talc-likc crystallitcs La Oriental, Moctczuma, Sonora (the typc locality), and finally at with iuellite and other secondaryphosphates in the Moculta rock Tombstone, Arizona. Only thc Tombstone material provides para- phosphatc deposit near thc basc of Lower Cambrisn limestone genetic information. In this material choloalite occurs with cerus- close to Angaston, ca. 60 km NE of Adelaide. Microprobc analy- site, emmonsite and rodalquilarite in severcly brecciated shale that si.q supplcmented by gravimetric water determination gave MgO has been replaced by opal and granular jarosite. Wet chcmical E.4,CaO 1.2, AJ2O328.4, P2O5 25.9, H2O 36.1%,(totat 100),lead- analysisofcholoalitc from the type locality gave CuO 11.0,PbO ing to the formula Mg5Als2(POa)s(OH)zz.zH2O,where n = 32. 33.0,TeO2 50.7, H2O 3.4,total 98.1%,correspolding closcly to thc Thc powder diffraction pattern, taken with a Guinier camera, can formula in the titlc. Powder pattems of thc mineral from thc three be indexed on an orthorhombic. ccll with a = 15.000(7), D = localities can bc indexcd on the basis of a cubic ccll with a : 8.330(6),c - 26.60(l)A, Z = 2,D alc.2.15 from assumedcell con- l2.5l9A for the material from Mina La Oriental, Z: l2,D c,alc.
  • New Mineral Names*,†

    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.
  • Palermo Zanazziite (Pdf)

    Palermo Zanazziite (Pdf)

    A Palermo Mineral Identification Search Tom Mortimer Forward: Mineral collectors take great satisfaction in placing accurate labels on their specimens. This article follows my 22 year quest to identify a self-collected Palermo specimen. I have recently narrowed my initial choices to the most plausible species. However my investigation illustrates that even those collectors with access to modern tools of mineral ID such as EDS, they may still be left with ambiguities. This is the forth re-write of this article. My thanks to Jim Nizamoff and Bob Wilken for their most helpful reviews. Background: Locality: Palermo #1 Mine, N. Groton, NH Specimen Size: 2.8 cm specimen Field Collected: Tom Mortimer - 1997 Catalog No.: # 217 Notes: This specimen was in my NH Species Display as fairfieldite for several years. It was visually identified by Bob Whitmore as fairfieldite. I understood that this was the spherical form of fairfieldite referred to in Bob Whitmore's book, The Pegmatite Mines Known as Palermo. The Story: A goal of my New Hampshire mineral species web site and display is to confirm species with analytic testing. This is particularly true for uncommon species and specimens where a visual identification is problematic. A 2017 investigation of NH fairfieldite and messelite revealed that my specimen #217 was not fairfieldite. A first polished grain Energy Dispersive Analysis (EDS) (BC77a – set 6) indicated a Ca, Mg, Fe, phosphate with a Ca:Fe:Mg:P ratio of about 2:1:1.4:5. No Mn was detected, 2+ 2+ essential for fairfieldite. Fairfieldite chemistry is: Ca2(Mn ,Fe )(PO4)2 · 2H2O .
  • Gatehouseite Mn (PO4)2(OH)4

    Gatehouseite Mn (PO4)2(OH)4

    2+ Gatehouseite Mn5 (PO4)2(OH)4 c 2001-2005 Mineral Data Publishing, version 1 Crystal Data: Orthorhombic. Point Group: 222. As bladelike crystals, with prominent {001}, {110}, {102}, elongated along [010], to 100 µm, in radiating to divergent groups and overgrowths on arsenoclasite. Twinning: On {001}, contact twins. Physical Properties: Cleavage: On {010}, distinct. Fracture: Splintery. Hardness = ∼4 D(meas.) = n.d. D(calc.) = 3.74 Optical Properties: Transparent. Color: Pale brownish orange to yellow or pale yellow. Streak: Pale yellow. Luster: Adamantine. Optical Class: Biaxial. Pleochroism: Distinct; brown to nearly colorless. Orientation: Parallel extinction; length-slow. α = 1.74(1) β = n.d. γ = 1.76(1) 2V(meas.) = n.d. Cell Data: Space Group: P 212121 (probable). a = 9.097(2) b = 5.693(2) c = 18.002(10) Z=4 X-ray Powder Pattern: Iron Monarch quarry, Australia. 2.90 (100), 2.702 (80), 2.853 (70), 2.802 (50), 2.022 (15), 1.608 (15), 4.483 (10) Chemistry: (1) (2) (3) SO3 0.10 P2O5 22.18 23.05 26.65 As2O5 3.58 3.32 V2O5 0.38 Al2O3 0.10 FeO 0.19 0.32 MnO 64.42 63.34 66.59 CuO 0.03 0.04 ZnO 0.03 PbO 0.05 0.05 H2O [6.44] [6.43] 6.76 Total [97.40] [96.65] 100.00 (1) Iron Monarch quarry, Australia; by electron microprobe, total Mn as MnO, total Fe as FeO, H2O calculated for 4(OH); corresponds to Mn5.09Fe0.01Al0.01[(P0.87As0.08V0.01)Σ=0.96O4]2(OH)4.
  • Thirty-Seventh List of New Mineral Names. Part 1" A-L

    Thirty-Seventh List of New Mineral Names. Part 1" A-L

    Thirty-seventh list of new mineral names. Part 1" A-L A. M. CLARK Department of Mineralogy, The Natural History Museum, Cromwell Road, London SW7 5BD, UK AND V. D. C. DALTRYt Department of Geology and Mineralogy, University of Natal, Private Bag XO1, Scottsville, Pietermaritzburg 3209, South Africa THE present list is divided into two sections; the pegmatites at Mount Alluaiv, Lovozero section M-Z will follow in the next issue. Those Complex, Kola Peninsula, Russia. names representing valid species, accredited by the Na19(Ca,Mn)6(Ti,Nb)3Si26074C1.H20. Trigonal, IMA Commission on New Minerals and Mineral space group R3m, a 14.046, c 60.60 A, Z = 6. Names, are shown in bold type. Dmeas' 2.76, Dc~ac. 2.78 g/cm3, co 1.618, ~ 1.626. Named for the locality. Abenakiite-(Ce). A.M. McDonald, G.Y. Chat and Altisite. A.P. Khomyakov, G.N. Nechelyustov, G. J.D. Grice. 1994. Can. Min. 32, 843. Poudrette Ferraris and G. Ivalgi, 1994. Zap. Vses. Min. Quarry, Mont Saint-Hilaire, Quebec, Canada. Obschch., 123, 82 [Russian]. Frpm peralkaline Na26REE(SiO3)6(P04)6(C03)6(S02)O. Trigonal, pegmatites at Oleny Stream, SE Khibina alkaline a 16.018, c 19.761 A, Z = 3. Named after the massif, Kola Peninsula, Russia. Monoclinic, a Abenaki Indian tribe. 10.37, b 16.32, c 9.16 ,~, l~ 105.6 ~ Z= 2. Named Abswurmbachite. T. Reinecke, E. Tillmanns and for the chemical elements A1, Ti and Si. H.-J. Bernhardt, 1991. Neues Jahrb. Min. Abh., Ankangite. M. Xiong, Z.-S.
  • Winter 2003 Gems & Gemology

    Winter 2003 Gems & Gemology

    Winter 2003 VOLUME 39, NO. 4 EDITORIAL _____________ 267 Tomorrow’s Challenge: CVD Synthetic Diamonds William E. Boyajian FEATURE ARTICLES _____________ 268 Gem-Quality Synthetic Diamonds Grown by a Chemical Vapor Deposition (CVD) Method Wuyi Wang, Thomas Moses, Robert C. Linares, James E. Shigley, Matthew Hall, and James E. Butler pg. 269 Description and identifying characteristics of Apollo Diamond Inc.’s facetable, single-crystal type IIa CVD-grown synthetic diamonds. 284 Pezzottaite from Ambatovita, Madagascar: A New Gem Mineral Brendan M. Laurs, William B. (Skip) Simmons, George R. Rossman, Elizabeth P. Quinn, Shane F. McClure, Adolf Peretti, Thomas Armbruster, Frank C. Hawthorne, Alexander U. Falster, Detlef Günther, Mark A. Cooper, and Bernard Grobéty A look at the history, geology, composition, and properties of this new cesium-rich member of the beryl group. 302 Red Beryl from Utah: A Review and Update James E. Shigley, Timothy J. Thompson, and Jeffrey D. Keith A report on the geology, history, and current status of the world’s only known occurrence of gem-quality red beryl. pg. 299 REGULAR FEATURES _____________________ 314 Lab Notes • Chrysocolla “owl” agate • Red coral • Coated diamonds • Natural emerald with nail-head spicules • Emerald with strong dichroism • High-R.I. glass imitation of tanzanite • Large clam “pearl” • Blue sapphires with unusual color zoning • Spinel with filled cavities 322 Gem News International • Comparison of three historic blue diamonds • Natural yellow diamond with nickel-related optical centers