Cuprobismutite, kupčíkite, hodrushite and associated sulfosalts from the black shale hosted Ni-Bi-As mineralization at Čierna Lehota, Slovakia
Cuprobismutite, kupčíkite, hodrushite and associated sulfosalts from the black shale hosted Ni-Bi-As mineralization at Čierna Lehota, Slovakia
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斯洛伐克 Čierna Lehota 镍铋砷矿化黑色页岩中的铜辉石、铜辉石、红锰矿和相关硫盐
DOI:
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发表时间:
2005
期刊:
影响因子:
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通讯作者:
M. Chovan
中科院分区:
文献类型:
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作者:
J. Pršek;T. Mikuš;E. Makovicky;M. Chovan
Three sulphosalts from the cuprobismutite homologous series have been found in a hydrothermal Ni-Bi-As mineralization at Cierna Lehota (Slovakia). Kupcikite (second world occurrence) has a significant content of Pb (2.73 wt.%) and Fe (0.85 wt.%), with the structural formula (Cu 3.92 Fe 0.24 ) Σ4.16 (Bi 4.60 Pb 0.19 Ag 0.04 Sb 0.01 ) Σ4.84 S 9.58 . Hodrushite has a higher content of Ag (mean 1.27 wt.%), but less Fe (0.59 wt.%) and Pb (0.23 wt.%), with structural formula (Cu 7.79 Fe 0.38 ) Σ8.17 (Bi 11.34 Ag 0.43 Pb 0.04 Sb 0.02 ) Σ11.83 S 22.13 . Two varieties of cuprobismutite have the highest Ag content (3.8 and 2.3 wt.%), with Fe 0.6 and 0.2 wt.%, and Pb 0.1 and 6.7 wt.%, giving two formulas (Cu 7.42 Fe 0.47 ) Σ7.87 (Bi 12.56 Ag 1.55 Pb 0.02 ) Σ14.13 S 24.68 and (Cu 7.67 Fe 0.14 ) Σ7.81 (Bi 11.95 Pb 1.37 Ag 0.85 Sb 0.02 ) Σ14.19 S 24.13 . Chemical variations between these sulphosalts are compared with published data, that emphasizes the role of minor cations. Associated sulphosalts are described: aikinite, and Bi-rich tennantite (Bi up to 9.7 wt.%).