Formula
Appearance
% copper in mineral
Cuprite
Cu2O
Red earthy
88
Chalcocite
Cu2S
Dark grey, metallic
78
Bornite
Cu5FeS4
Golden brown, metallic
63
Malachite
CuCO3Cu(OH)4
Bright green, earthy
58
Azurite
2CuCO3Cu(OH)4
Blue, glassy
55
Chalcopyrite
CuFeS2
Golden yellow, metallic
35
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Formula Appearance % copper in mineral Cuprite Cu2O Red earthy...
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