Arupite

General Information:
 Chemical Formula:
(Ni,Fe++)3(PO4)2·8(H2O)
 Composition:
(Molecular Weight = 983.91 gm)
Magnesium 1.85 % Mg
Manganese 12.56 % Mn
Iron 4.26 % Fe
Nickel 13.42 % Ni
Phosphorus 12.59 % P 
Hydrogen 3.28 % H 
Oxygen 52.04 % O 
 Empirical Formula:
3(Ni0.75)3(Mn2+0.75)3(Fe2+0.25)3(Mg0.25)(PO4)2·8(H2O)
 IMA Status:
Approved IMA 1988
Physical Properties:
 Cleavage:
[???] Good
 Color:
blue or turquoise blue.
 Diaphaniety:
Translucent
 Hardness:
1.5-2 - Talc-Gypsum
 Luster:
Earthy (Dull)
 Streak:
light blue
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