Schaurteite

General Information: Chemical Formula:Ca3Ge++++(SO4)2(OH)6·3(H2O) Composition:(Molecular Weight = 541.06 gm)Calcium 22.22 % CaGermanium 13.42 % GeHydrogen 2.24 % H Sulfur 11.85 % S Oxygen 50.27 % O  Empirical Formula: Ca3Ge(SO4)2(OH)6·3(H2O) Environment:Alteration product of Ge-bearing ores. IMA Status:Approved IMA 1967 Locality:Tsumeb, Namibia. Name Origin:Named for Werner T. Schaurte (1892-1978), South African scientist.Physical Properties: Color:silky white. Density:2.65 Diaphaniety:Transparent to Translucent Habits:Acicular - Occurs as needle-like crystals., Fibrous - Crystals made up of fibers., Hardness:2.5 - Finger Nail Luster:Silky Streak:whiteMore details...

Ca3Ge(SO4)2(OH)6 3(H2O)