Paracoquimbite

General Information:
 Chemical Formula:
Fe+++2(SO4)3·9(H2O)
 Composition:
(Molecular Weight = 562.02 gm)
Iron 19.87 % Fe
Hydrogen 3.23 % H 
Sulfur 17.12 % S 
Oxygen 59.78 % O 
 Empirical Formula:
Fe3+2(SO4)3·9(H2O)
Physical Properties:
 Cleavage:
[0112] Indistinct, [1014] Indistinct
 Color:
light violet.
 Density:
2.11
 Diaphaniety:
Transparent
 Hardness:
2.5 - Finger Nail
 Luster:
Vitreous (Glassy)
More details...