A Note on the Chemical Composition of Nuffieldite Solid-Solution From Sulphide Mineralizations in the Western Carpathians, Slovakia

Jaroslav Prşek 1 , Emil Makovicy 2 , Martin Chovan 1  and Alexander Smirnov 3
  • 1 Department of Mineralogy and Petrology, Comenius University, Mlynská dolina 842 15, Bratislava, Slovakia
  • 2 Department of Mineralogy, Geological Institute, University of Copenhagen, øster Voldgade 10, DK-1350 Copenhagen K, Denmark
  • 3 Department of Geosciences, State University of New York, Stony Brook, NY 11794-2100, USA

A Note on the Chemical Composition of Nuffieldite Solid-Solution From Sulphide Mineralizations in the Western Carpathians, Slovakia

The chemistry of the rare sulphosalt nuffieldite from three localities in Slovakia is examined. Nuffieldite is a part of a complex association of Bi sulphosalts accompanying tetrahedrite mineralization in some sulphide deposits in the Western Carpathians. Cu + Pb = (Bi, Sb) + vac. substitution in nuffieldite and the general formula Cu1+xPb2Bi2(PbxSbyBi1-x-y)S7 where 0 < x < 0.34; and 0.32 < y < 0.45 are confirmed. Decreasing Sb content with increasing copper content indicates a predominant substitution of Bi by Sb in nuffieldite.

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  • ANTAL B., 1991a: Bi sulphosalts from Slovinky deposit. Mineralia Slovaca, 368 (in Slovak).

  • ANTAL B., 1991b: Stannite from Slovinky deposit. Mineralia Slovaca, 185-186 (in Slovak).

  • CIOBANU C.L., COOK N.J., 2000: Intergrowths of bismuth sulphosalts from the Ocna de Fier Fe-skarn deposit, Banat, Southwest Romania. European Journal of Mineralogy 12, 899-917.

  • COOK N.J., 1997: Bismuth and bismuth antimony sulphosalts from Neogene vein mineralization, Baia Borsa area, Maramures, Romania. Mineralogical Magazine, 61, 387-409.

  • EFIMOV A.V., BORODAEV YU. S., MOZGOVA N.N., NENASHEVA S.N., 1990: Peculiarities of bismuth mineralization at the Akchatau molybdenum-tungsten deposit (central Kazakhstan). Geol. Rudn. Mestorozd. 4, 64-75 (in Russian).

  • HARRIS D.C., 1993: Confirmation of antimony in co-type nuffieldite, Lime Creek, British Columbia and a second occurrence at Izok Lake, Northwest territories. Geological Survey of Canada Paper 93-1E, 9-10.

  • HURNÝ J., KRIŠTÍN J., 1978: Chemical composition of bismuth minerals from some deposits of the northern part of the Spissko-Gemerske Rudohorie Mountains (eastern Slovakia). In: Int. Mineral. Assoc., XIth General Meet., Novosibirsk), Abstr. Vol., 142.

  • KINGSTON P.W., 1968: Studies of mineral sulphosalts. XXI. Nuffieldite, a new species. Canadian Mineralogist 9, 439-452.

  • KOHATSU I., WUENSCH B.J., 1973: The crystal structure of nuffieldite Pb2Cu(Pb, Bi)Bi2S7. Zeitschrift für Kristallographie 138, 343-365.

  • MAJZLAN J., CHOVAN M., 1997: Hydrothermal mineralization in the Mlynná dolina valley, Nízke Tatry Mts. Mineralia Slovaca 29, 149-158. (in Slovak).

  • MAJZLAN J., OZDÍN D., 1995: Cu-Pb-Bi sulfosalts from Nizke Tatry Mts. Mineralia Slovaca 27, 290-292 (in Slovak).

  • MAUREL C, MOËLO Y., 1990: Synthese de la nuffieldite dans le systeme Bi-Pb-Sb-Cu-S. Canadian Mineralogist 28, 745-749.

  • MOËLO Y., 1989: Antimoine dans la nuffieldite associée a de la friedrichite (commune des Hauches, Alpes de Haute-Savoie); redefinition cristallochimique de la nuffieldite. CR Acad Sci. Paris 309 II, 1659-1664.

  • MOËLO Y., MEERSCHAUT A., MAKOVICKY E., 1997: Refinement of the crystal structure of nuffieldite, Pb2Cu1,4(Pb0,4Bi0,4Sb0,2)Bi2S7: structural relationships and genesis of complex lead sulfosalt structures. Canadian Mineralogist 35, 1497-1508.

  • MOZGOVA N.N., NENASHEVA S.N., BORODAYEV YU. S., YUDOVSKAYA M.A., 1994: Nuffieldite from the Maleevskoe massive sulfide deposit, Russia. Canadian Mineralogist 32, 359-364.

  • OZDÍN D,. CHOVAN M., 1999: New mineralogical and paragenetic knowledge about siderite veins in the vicinity of Vyšnš Boca, Nizke Tatry Mts. Slovak Geological Magazine 5, 4, 255-271

  • YUDOVSKAYA M.A., BRYZGALOV I.A., EREMIN N.I., PETROVA I.V., POZDNJAKOVA N.V., 1992: New data about antimony-bismuth mineralization in ores of Maleevskoe deposit (Rudnyj Altai). Vestnik Moskovskogo Univ., Ser. Geol. 2, 53-65 (in Russian).

  • ZAKRZEWSKI M., MAKOVICKY E., 1986: Izoklakeite from Vena, Sweden, and the kobellite homologous series. Canadian Mineralogist 24, 7-18.

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