Schaurteite

General Information:
 Chemical Formula:
Ca3Ge++++(SO4)2(OH)6·3(H2O)
 Composition:
(Molecular Weight = 541.06 gm)
Calcium 22.22 % Ca
Germanium 13.42 % Ge
Hydrogen 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:
white
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