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
More details...