Orschallite

General Information:
 Chemical Formula:
Ca3(SO3)2SO4·12(H2O)
 Composition:
(Molecular Weight = 592.61 gm)
Calcium 20.29 % Ca
Hydrogen 4.08 % H 
Sulfur 16.23 % S 
Oxygen 59.40 % O 
 Empirical Formula:
Ca3(SO3)2(SO4)·12(H2O)
 IMA Status:
Approved IMA
Physical Properties:
 Cleavage:
None
 Color:
colorless.
 Density:
1.9
 Diaphaniety:
Transparent
 Hardness:
4 - Fluorite
 Luster:
Vitreous (Glassy)
 Streak:
white
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