Siderite, Tetrahedrite

Specimen ID: D9J-4ED

Mineral(s)
Siderite : FeCO3
Tetrahedrite : Cu6(Cu4X2)Sb4S13
Locality
Mindat locality:
Events

Photo added to mindat.org

Very Mg-rich siderite (Fe:Mg = 14:13) altered into limonite along cleavage planes and on the rims. Bright grey tetrahedrite on the left and right.
Uwe Kolitsch - 30th June 2014

Photo added to mindat.org

Close-up photo of the very Mg-rich siderite (Fe:Mg = 14:13) altered into limonite along cleavage planes.
Uwe Kolitsch - 30th June 2014
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