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Redefinition of thérèsemagnanite, NaCo4(SO4)(OH)6Cl·6H2O: new data and relationship to ‘cobaltogordaite’

Published online by Cambridge University Press: 28 February 2018

Anatoly V. Kasatkin*
Affiliation:
Fersman Mineralogical Museum of the Russian Academy of Sciences, Leninsky Prospekt 18-2, 119071 Moscow, Russia
Jakub Plášil
Affiliation:
Institute of Physics ASCR, v.v.i., Na Slovance 2, 18221 Praha, Czech Republic
Radek Škoda
Affiliation:
Department of Geological Sciences, Faculty of Science, Masaryk University, Kotlářská 2, CZ-611 37 Brno, Czech Republic
Dmitriy I. Belakovskiy
Affiliation:
Fersman Mineralogical Museum of the Russian Academy of Sciences, Leninsky Prospekt 18-2, 119071 Moscow, Russia
Joe Marty
Affiliation:
5199 E Silver Oak Rd., Salt Lake City, UT 84108, USA
Nicolas Meisser
Affiliation:
Musée Cantonal de Géologie, University of Lausanne, Building Anthropole, CH-1015 Lausanne, Switzerland
Igor V. Pekov
Affiliation:
Faculty of Geology, Moscow State University, Vorobievy Gory, 119991 Moscow, Russia

Abstract

Thérèsemagnanite was originally described from the Cap Garonne mine, Var, France. Its ideal formula was reported as (Co,Zn,Ni)6(SO4)(OH,Cl)10·8H2O; without crystal structure data, only the powder X-ray diffraction pattern was given. Revision of the holotype material revealed that thérèsemagnanite is identical to ‘cobaltogordaite’ (IMA2014-043), recently described from the Blue Lizard mine, Utah, USA. Thérèsemagnanite is thus redefined in accordance with the new data obtained for the neotype specimen from Blue Lizard (formerly the holotype specimen of ‘cobaltogordaite’) and ‘cobaltogordaite’ has been discredited by the International Mineralogical Association Commission on New Mineral Nomenclature and Classification (IMA CNMNC). Thérèsemagnanite has the ideal, end-member formula NaCo4(SO4)(OH)6Cl·6H2O. The empirical formulae of the holotype (Cap Garonne) and the neotype (Blue Lizard), both based on microprobe analyses and calculated on the basis of 17 O + Cl atoms per formula unit (with fixed 6 OH groups and 6 H2O molecules; H content is calculated by stoichiometry) are (Na0.64K0.09)Σ0.73(Co2.35Zn1.22Ni0.50)Σ4.07S1.02O3.98(OH)6Cl1.02·6H2O and Na1.01(Co1.90Zn1.37Ni0.48Cu0.15Mn0.05)Σ3.95S1.03O4.09(OH)6Cl0.91·6H2O, respectively. Thérèsemagnanite is trigonal,P$\overline 3 $,a = 8.349(3),c = 13.031(2) Å,V = 786.6(4) Å3 and Z = 2 (neotype). The strongest powder X-ray diffraction lines are [dobs in Å (hkl) (Irel)]: 13.10 (001)(100), 6.53 (002)(8), 4.173 (110)(4), 3.517 (112)(5), 2.975 (104, 10$\overline 4 $)(4), 2.676 (211)(5) and 2.520 (12$\bar 2$)(5) (neotype). Thérèsemagnanite is a cobalt analogue of gordaite, NaZn4(SO4)(OH)6Cl·6H2O. These minerals represent the gordaite group, accepted by the IMA CNMNC.

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Article
Copyright
Copyright © Mineralogical Society of Great Britain and Ireland 2018 

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Footnotes

Associate Editor: Stuart Mills

References

Adiwidjaja,G.,Friese,K.,Klaska,K.-H. andSchlüter,J. (1997)The crystal structure of gordaite NaZn4(SO4)(OH)6Cl·6H2O.Zeitschrift für Kristallographie,212,704–707.CrossRefGoogle Scholar
Chenoweth,W.L. (1993)The geology and production history of the uranium deposits in the White Canyon mining district, San Juan County, Utah.Miscellaneous Publication 93-3, Utah Geological Survey, Salt Lake City,Utah, USA.Google Scholar
Favreau,G. andGalea-Clolus,V. (2014)Cap Garonne. Association Française de Microminéralogie, France, 320 pp.Google Scholar
Hålenius,U.,Hatert,F.,Pasero,M. andMills,S.J. (2015)IMA Commission on New Minerals, Nomenclature and Classification, Newsletter 27. New minerals and nomenclature modifications approved in 2015.Mineralogical Magazine,79(5),1229–1236.Google Scholar
Kampf,A.R.,Plášil,J.,Kasatkin,A.V. andMarty,J. (2015)Bobcookite, NaAl(UO2)2(SO4)4(H2O)18, and wetherillite, Na2Mg(UO2)2(SO4)4·18H2O, two new uranyl sulfate minerals from the Blue Lizard mine, San Juan County, Utah, USA.Mineralogical Magazine,79,695–714.Google Scholar
Kasatkin,A.V.,Plášil,J.,Belakovskiy,D.I. andMarty,J. (2014)Cobaltogordaite, IMA 2014-043. CNMNC Newsletter No.22, October 2014.Mineralogical Magazine,78,1241–1248.Google Scholar
Kraus,W. andNolze,G. (1996)POWDER CELL – a program for the representation and manipulation of crystal structures and calculation of the resulting X-ray powder patterns.Journal of Applied Crystallography,29,301–303.Google Scholar
Lane,M.D. (2007)Mid-infrared emission spectroscopy of sulphate and sulphate-bearing minerals.American Mineralogist,92,1–18.Google Scholar
Libowitzky,E. (1999)Correlation of O–H stretching frequencies and O–H···O hydrogen bond lengths in minerals.Monatshefte f ür Chemie,130,1047–1059.CrossRefGoogle Scholar
Mandarino,J.A. (1981)The Gladstone-Dale relationship: Part IV. The compatibility concept and its application.Canadian Mineralogist,19,441–450.Google Scholar
Merlet,C. (1994)An accurate computer correction program for quantitative electron probe microanalysis.Microchimica Acta,114/115,363–376.CrossRefGoogle Scholar
Mills,S.J.,Hatert,F.,Nickel,E.H. andFerraris,G. (2009)The standardisation of mineral group hierarchies: application to recent nomenclature proposals.European Journal of Mineralogy,21,1073–1080.Google Scholar
Nasdala,L.,Witzke,T.,Ullrich,B. andBrett,R. (1998)Gordaite [Zn4Na(OH)6(SO4)Cl·6H2O]: second occurrence in the Juan de Fuca Ridge, and new data.American Mineralogist,83,1111–1116.Google Scholar
Sarp,H. (1993)Guarinoite (ZnCoNi)6(SO4)(OH,Cl)10·5H2O et thérèsemagnanite (CoZnNi)6(SO4)(OH,Cl)10·8H2O, deux nouveaux minéraux de la mine de Cap Garonne, Var, France.Archives des Sciences. Genève,46(1),37–44.Google Scholar
Schlüter,J.,Klaska,K.-H.,Friese,K.,Adiwidjaja,G. andGebhard,G. (1997)Gordaite, NaZn4(SO4)(OH)6Cl·6H2O, a new mineral from the San Francisco mine, Antofagasta, Chile.Neues Jahrbuch für Mineralogie, Monatshefte,155–162.Google Scholar
Thaden,R.E.,Trites,A.F.Jr. andFinnell,T.L. (1964)Geology and ore deposits of the White Canyon area, San Juan and Garfield Counties, Utah. Bulletin, 1125.United States Geological Survey,Washington, D.C.Google Scholar