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Euhedral crystals of ferroan platinum, cooperite and mertieite-II from alluvial sediments of the Darya river, Aldan Shield, Russia

Published online by Cambridge University Press:  05 July 2018

G. G. Shcheka ,
A. N. Solianik ,
B. Lehmann ,
A. Bieniok ,
G. Amthauer ,
D. Topa  and
J. H. G. Laflamme
G. G. Shcheka*
Affiliation:
Far East Geological Institute, Russian Academy of Sciences, 159 Prospect 100-letya, Vladivostok 690022, Russia Institute of Mineralogy and Mineral Resources, Technical University of Clausthal, Adolph-Roemer-Strasse 2a, D-38678 Clausthal-Zellerfeld, Germany
A. N. Solianik
Affiliation:
Far East Geological Institute, Russian Academy of Sciences, 159 Prospect 100-letya, Vladivostok 690022, Russia
B. Lehmann
Affiliation:
Institute of Mineralogy and Mineral Resources, Technical University of Clausthal, Adolph-Roemer-Strasse 2a, D-38678 Clausthal-Zellerfeld, Germany
A. Bieniok
Affiliation:
Institute of Mineralogy, University of Salzburg, Hellbrunnerstrasse 34, A-5020 Salzburg, Austria
G. Amthauer
Affiliation:
Institute of Mineralogy, University of Salzburg, Hellbrunnerstrasse 34, A-5020 Salzburg, Austria
D. Topa
Affiliation:
Institute of Mineralogy, University of Salzburg, Hellbrunnerstrasse 34, A-5020 Salzburg, Austria
J. H. G. Laflamme
Affiliation:
Mining and Mineral Sciences Laboratories, Canada Centre for Mineral and Energy Technology, 555 Booth Street, Ottawa, Ontario K1A 0G1, Canada
*
*E-mail: [email protected]
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Abstract

Idiomorphic crystals (up to 3.5 mm) of ferroan platinum, cooperite and mertieite-II were found in a heavy-mineral concentrate from stream sediments of the Darya river in the Aldan Shield, Russia. Pt-Fe crystals display cubic and thin platy habits; occasionally they are twinned. The chemical composition ranges from Pt2.64Fe1.00 to Pt2.88Fe1.00 with Os, Ru, Ir, Rh and Pd below the analytical detection limit of the electron microprobe. X-ray diffractometry of Pt-Fe crystals suggests a F-centred cubic lattice, characteristic of ferroan platinum. Some of the ferroan platinum crystals have large (about 100 μm wide) cooperite overgrowth rims or are covered by a Au-Ag alloy. Cooperite also occurs as large euhedral crystals (up to 3 mm across, partly twinned). Crystals of mertieite-II are speckled with μm-sized (2–5 μm) inclusions of sperrylite and intergrown with minerals of cooperite-braggite solid solution, Pt-Pd-Hg alloy, keithconnite and Au-Ag alloy. Fractures along crystallographic planes of the mertieite-II crystals are filled with Pd-Pt-Fe-Sb-As-Hg-Te-Bi-bearing oxides. The coarse-grained PGM from the Darya have a geological setting similar to the Kondyor PGE placer 75 km to the northeast and are probably related to clinopyroxenite-hornblende-magnetite units of Alaskan-/Uralian-type intrusions.

Keywords

ferroan platinumcooperitemertieite-IIPGE oxidesAu-PGE placerDaryaAldan ShieldRussia
Type
Research Article
Information
Mineralogical Magazine , Volume 68 , Issue 6 , December 2004 , pp. 871 - 885
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 2004

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References

Augé, T., Salpeteur, I., Bailly, L., Mukherjee, M. and Patra, R.N. (2002) Magmatic and hydrothermal platinum-group minerals and base-metal sulfides in Baula complex, India. The Canadian Mineralogist, 40, 277–309.CrossRefGoogle Scholar
Cabral, A.R., Lehmann, B. Kwitko, R. and Jones, R.D. (2002) Palladian gold and palladian arsenide-antimonide minerals from Gongo Soco iron ore mine, Quadrilátero Ferrífero, Minas Gerais, Brazil. Transactions of the Institution of Mining and Metallurgy, Section B: Applied Earth Science, 111, B74–B80.Google Scholar
Cabri, L.J. (2002) Theplatinum-group minerals. The Geology, Geochemistry, Mineralogy and Mineral Beneficiation of Platinum-group Elements (Cabri, L.J., editor). Canadian Institute of Mining, Metallurgy and Petroleum, Special Volume, 54, 13–129.Google Scholar
Cabri, L.J. and Feather, C.E. (1975) Platinum-iron alloys: a nomenclature based on a study of natural and synthetic alloys. The Canadian Mineralogist, 13, 117–126.Google Scholar
Cabri, L.J. and Laflamme, J.H.G. (1997) Platinum-group minerals from the Konder Massif, Russian Far East. The Mineralogical Record, 28, March-April, 97–106.Google Scholar
Cabri, L.J., Harris, D.C. and Weiser, T.W. (1996) Mineralogy and distribution of platinum mineral (PGM) placer deposits of the world. Exploration Mining Geology, 5, 73–167.Google Scholar
Cabri, L.J., Stern, R.A. and Czamanske, G.K. (1998) Osmium isotope measurements of Pt-Fe alloy placer nuggets from the Konder intrusion using a Shrimp II ion microprobe. 8th International Platinum Symposium, Abstracts, pp. 55–58.Google Scholar
El'yanov, A.A. and Andreev, G.B. (1991) Magmatism and Metallogeny of the Platform Provinces of Multistage Activation. Nauka, Novosibirsk, 168 pp. (in Russian).Google Scholar
Gervilla, F. and Kojonen, K. (2002) The platinum-group minerals in the upper section of the Keivitsansarvi Ni-Cu-PGE deposit, Northern Finland. The Canadian Mineralogist, 40, 377–394.CrossRefGoogle Scholar
Gurovitch, V.G., Zemlyanukhin, V.N., Emelyanenko, E.P., Karetnikov, A.S., Kvasov, A.I., Lazarenkov, V.G., Malitch, K.N., Mochalov, A.G., Prikhod'ko, V.S. and Stepashenko, A.A. (1994) Geology, Petrology and Ore Presence of the Kondyor Massif (Kosigin, Yu.A. and Prikhod'ko, V.S., editors). Nauka, Moscow, 176 pp. (in Russian).Google Scholar
Malitch, K.N. (1999) Platinum-group Elements in Clinopyroxenite-dunite Massifs of East Siberia (Geochemistry, Mineralogy, and Genesis). Saint Petersburg Cartographic Factory VSEGEI Press, St. Petersburg, 296 pp. (in Russian).Google Scholar
Malitch, K.N. and Thalhammer, O.A.R. (2002) Pt-Fe nuggets derived from clinopyroxenite-dunite massifs, Russia: a structural, compositional and osmium-isotope study. The Canadian Mineralogist, 40, 395–418.CrossRefGoogle Scholar
Mochalov, A.G. (2001) ‘Heavy concentrate platinum’ from the placers of the Russian Far East. Abstract of doctoral thesis. IGEM, Moscow, 48 pp. (in Russian)Google Scholar
Nekrasov, I.Ya, Lennikov, A.M, Oktyabrsky, R.A., Zalishchak, B.L. and Sapin, B.I. (1994) Petrology and Platinum Mineralization of the Alkaline-ultramafic Ring Complexes (Laverov, N.P., editor). Nauka, Moscow, 381 pp. (in Russian).Google Scholar
Pushkarev, Yu.D., Kostoyanov, A.I., Orlova, M.P., and Bogomolov, E.S. (2002) Peculiarities of the Rb-Sr, Sm-Nd, Re-Os and K-Ar isotope systems in the Kondyor massif: mantle substratum, enriched by PGE. Regional Geology and Metallogeny, 16, 80–91 (in Russian).Google Scholar
Rozhkov, I.S., Kitsul, V.I., Razin, L.V. and Borishanskaya, S.S (1962) Platinum of Aldan Shield. Academy of Sciences of the USSR Press, Moscow, 119 pp. (in Russian).Google Scholar
Shcheka, G.G., Lehmann, B., Gierth, E., Goemann, K. and Wallianos, A. (2004) Macrocrystals of Fe-Pt alloy from the Kondyor PGE placer deposit, Khabarovskiy Kray, Russia: Trace element content, mineral inclusions and reaction assemblages. The Canadian Mineralogist, 42, 601–617.CrossRefGoogle Scholar
Sushkin, L.V. (1995) Characteristic features of the native elements of the Kondyor deposit. Tikhookeanskaya Geologiya, 14, 97–102. (in Russian).Google Scholar
Szymañski, J.T., Cabri, L.J. and Laflamme, J.H.G. (1997) The crystal structure and calculated powder diffraction data for zvyagintsevite, Pd3Pb. The Canadian Mineralogist, 35, 773–776.Google Scholar
Wagner, P.A. (1929) The Platinum Deposits and Mines of South Africa. Oliver and Boyd, London, 326 pp.Google Scholar