General Information:
Chemical Formula:
Fe+++(SO4)(OH)·3(H2O)
Composition:
(Molecular Weight = 222.96 gm)
Iron 25.05 % Fe
Hydrogen 3.16 % H
Sulfur 14.38 % S
Oxygen 57.41 % O
Empirical Formula:
Fe3+(SO4)(OH)·3(H2O)
Physical Properties:
Cleavage:
[010] Perfect, [100] Perfect
Color:
brown red, orange red, pink, or red.
Density:
2.189 - 2.286, Average = 2.23
Diaphaniety:
Transparent
Hardness:
2.5 - Finger Nail
Luster:
Vitreous (Glassy)
Streak:
yellow
More details...