General Information:
Chemical Formula:
Fe+++(SO4)(OH)·2(H2O)
Composition:
(Molecular Weight = 204.95 gm)
Iron 27.25 % Fe
Hydrogen 2.46 % H
Sulfur 15.65 % S
Oxygen 54.65 % O
Empirical Formula:
Fe3+(SO4)(OH)·2(H2O)
Physical Properties:
Cleavage:
[100] Perfect
Color:
dark yellow or orange.
Density:
2.55
Diaphaniety:
Transparent
Hardness:
2.5 - Finger Nail
Luminescence:
Non-fluorescent.
Luster:
Vitreous (Glassy)
Streak:
light yellow
More details...