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Earth lab datasite

Tetrahedrite
Sulphide coated with chalcopyrite
copper antimony sulphide
Cu12 Sb4 S13
Scale bar = 1 centimetre
cleavage: None
crystal system: Cubic
hardness 3.0 - 4.5
relative density 4.6 - 5.1
Liskeard
25 C 5