Kremer Pigments
Chalcocite
Chalcocite
SKU:10914.12010.104
Code d'index des couleurs :
Gray to black crystals, with gray-black streak, copper sulfide, Cu2S, so to speak the analogous compound to iron sulfide. For copper smelting, the ore must either be roasted or converted to water-soluble copper sulfate by bacterial decomposition.
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