General Information:
Chemical Formula:
(Na,Ca)2(Fe++,Mg)2Al10(PO4)8(OH,O)12·4(H2O)
IMA Status:
Approved IMA 1977
Physical Properties:
Cleavage:
[100] Perfect
Color:
blue or greenish blue.
Density:
3.05
Hardness:
5 - Apatite
Streak:
light blue
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