General Information:
Chemical Formula:
(H5O2)+Fe+++(SO4)2·2(H2O)
Composition:
(Molecular Weight = 321.04 gm)
Iron 17.40 % Fe
Hydrogen 2.83 % H
Sulfur 19.98 % S
Oxygen 59.80 % O
Empirical Formula:
HFe3+(SO4)2·4(H2O)
Physical Properties:
Cleavage:
[001] Perfect, [110] Good
Color:
bluish, colorless, greenish, gray, or yellow.
Density:
2.23
Diaphaniety:
Transparent
Hardness:
2 - Gypsum
Luster:
Vitreous - Pearly
Streak:
white
More details...