General Information:
Chemical Formula:
Fe+++(SO4)(OH)·7(H2O)
Composition:
(Molecular Weight = 295.02 gm)
Iron 18.93 % Fe
Hydrogen 5.12 % H
Sulfur 10.87 % S
Oxygen 65.08 % O
Empirical Formula:
Fe3+(SO4)(OH)·7(H2O)
Physical Properties:
Cleavage:
[???] Indistinct
Color:
green or yellow green.
Density:
1.99
Diaphaniety:
Transparent to Translucent
Hardness:
3 - Calcite
Luster:
Vitreous (Glassy)
Streak:
yellow
More details...