Zincroselite

General Information:
 Chemical Formula:
Ca2Zn(AsO4)2·2(H2O)
 Composition:
(Molecular Weight = 459.41 gm)
Calcium 17.45 % Ca
Zinc 14.23 % Zn
Arsenic 32.62 % As
Hydrogen 0.88 % H 
Oxygen 34.83 % O 
 Empirical Formula:
Ca2Zn(AsO4)2·2(H2O)
 IMA Status:
Approved IMA
Physical Properties:
 Cleavage:
[???] Good
 Color:
colorless or white.
 Density:
3.75
 Diaphaniety:
Transparent
 Hardness:
3 - Calcite
 Streak:
white
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