Xitieshanite

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
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