Sabelliite

General Information: Chemical Formula:Cu2Zn(As,Sb)O4(OH)3 Composition:(Molecular Weight = 394.13 gm)Zinc 16.59 % ZnCopper 32.25 % CuAntimony 7.72 % SbArsenic 14.26 % AsHydrogen 0.77 % H Oxygen 28.42 % O  Empirical Formula: Cu2ZnAs0.75Sb0.25O4(OH)3 Environment:In a quartzitic outcrop as rare, minute crystals. IMA Status:Approved IMA Locality:The abandoned Is Murvonis Mine, Domusnovas, Iglesias district, Sadinia, Italy. Mine dumps near Schwaz, Austria. Name Origin:For Dr. Cesare Sabelli (1934- ) of the Consiglio Nazionale delle Ricerche, Firenze, Ital.Physical Properties: Cleavage:None Color:emerald green. Density:4.65 Diaphaniety:Transparent Habits:Tabular - Form dimensions are thin in one direction., Cylindrical - Shaped like a cylinder., Crystalline - Fine - Occurs as well-formed fine sized crystals. Hardness:4.5 - Between Fluorite and Apatite Luminescence:Non-fluorescent. Luster:Adamantine Streak:light greenMore details...