General Information:
Chemical Formula:
Fe++Ge(OH)6
Composition:
(Molecular Weight = 230.50 gm)
Iron 24.23 % Fe
Germanium 31.50 % Ge
Hydrogen 2.62 % H
Oxygen 41.65 % O
Empirical Formula:
Fe2+Ge(OH)6
Physical Properties:
Cleavage:
[100] Good, [010] Good, [001] Distinct
Color:
brown, colorless, or green.
Density:
3.596 - 3.61, Average = 3.6
Diaphaniety:
Transparent to Translucent
Hardness:
4.5 - Between Fluorite and Apatite
Luster:
Greasy (Oily)
Streak:
gray white
More details...