Chalcocite : Cu2S
Mindat locality:
Photo added to mindat.org
“A 4.0 by 4.0 cms mass of crystals. JSS specimen and photo.”
John Sobolewski - 13th June 2011
Photo added to mindat.org
“A 4.0 by 4.0 cms mass of crystals. The label said ”
John Sobolewski - 13th June 2011
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