Tetrahedrite Subgroup, Siderite
Specimen ID: 6D8-MGG
Tetrahedrite Subgroup : Cu6(Cu4C2+2)Sb4S12S
Siderite : FeCO3
Photo added to mindat.org
“Superb crystal of tetrahedrite from the collection of Erich Lück. Photographed about 1978. Reproduction of a 6x6cm slide. ”
Volker Betz - 9th August 2016
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