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Arsenosulvanite: Cu3(As,V)S4 Colusite: Cu12-13V(As,Sb,Sn,Ge)3S16
Comments: Bronzy, metallic tetragonal crystals of colusite (arsenosulvanite) in white marble.
Location: Val Bona quarry, Carrara, Italy.
Scale: Picture size 1 cm.
© Dave Barthelmy