A note on the chemical composition of nuffieldite solid-solution from sulphide Mineralizations in the Western Carpathians, Slovakia

• Autorzy: Prsek, Jaroslav , Makovicy, Emil , Chovan, Martin , Smirnov, Alexander

Warianty tytułu

O składzie chemicznym rostworu stałego nuffieldytu z siarczkowych mineralizacji w zachodnich Karpatach, Słowacja

• Języki publikacji: EN

Abstrakty

EN

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.

PL

Badaniom chemicznym poddane zostały rzadkie siarkosole — nuffieldyty — z trzech lokalizacji na Słowacji. Nuffieldyt w tych lokalizacjach współwystępuje z innymi siarkosolami bogatymi w Bi i tetraedrytem. Cu + Pb = Bi,Sb + vac. substytucja w nuffieldycie oraz generalny skład chemiczny Cu1+xPb2Bi2(PbxSbyBi1–x–y)S7, gdzie 0 < x < 0,34; i 0,32 < y < 0,45 została potwierdzona. Zawartość Sb maleje wraz ze wzrostem zawartości Cu, wskazując na dominującą przewagę w nuffieldycie substytucji Bi nad Sb.

Słowa kluczowe

PL

nuffieldyty; siarkosole; Słowacja

EN

nuffieldite; Bi sulphosalts; chemical composition; Cu + Pb = (Bi,Sb) + vac. substitution; Slovakia

• Czasopismo: Mineralogia
• Rocznik: 2006
• Tom: Vol. 37, iss. 1
• Strony: 51--60
• Opis fizyczny: Bibliogr. [16] poz., rys., tab.

Twórcy

autor

Prsek, Jaroslav

• Department of Mineralogy and Petrology, Comenius University, Mlynská dolina 842 15, Bratislava, Slovakia

autor

Makovicy, Emil

• Department of Mineralogy, Geological Institute, University of Copenhagen, øster Voldgade 10, DK-1350 Copenhagen K, Denmark

autor

Chovan, Martin

• Department of Mineralogy and Petrology, Comenius University, Mlynská dolina 842 15, Bratislava, Slovakia

autor

Smirnov, Alexander

• Department of Geosciences, State University of New York, Stony Brook, NY 11794-2100, USA

Bibliografia

• 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 Nízke 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 Vyšná Boca, Nízke Tatry Mts. Slovak Geological Magazine 5, 4, 255–271.

Identyfikatory

DOI

10.2478/v10002-007-0005-x