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Briartite: Cu2(Zn,Fe)GeS4 Catamarcaite: Cu6GeWS8 Bornite: Cu5FeS4
Comments: Briartite-type phase (Bri) in close association with catamarcaite (Ct) lining a cavity in massive bornite (Bn) - chalcocite (Cc) ore; Sp is sphalerite (CanMin v44:1481). Location: Bornite-rich ore from old dumps near the La Rosario vein, Capillitas epithermal deposit, Catamarca Province, Argentina.. Scale: See Image. © Canadian Mineralogist