Daomanite

General Information: Chemical Formula:CuPtAsS2 Composition:(Molecular Weight = 397.68 gm)Copper 15.98 % CuArsenic 18.84 % AsPlatinum 49.05 % PtSulfur 16.13 % S  Empirical Formula: CuPtAsS2 IMA Status:Approved IMA 1974 Locality:Dao and Ma districts, Yanshan, China. Name Origin:Named for the locality.Physical Properties: Cleavage:[100] Good, [001] Distinct, [010] Fair Color:gray or silver gray. Density:7.03 Diaphaniety:Opaque Hardness:3.5-4 - Copper Penny-Flourite Luster:MetallicMore details...