Natrodufrenite

General Information:
 Chemical Formula:
Na(Fe+++,Fe++)(Fe+++,Al)5(PO4)4(OH)6·2(H2O)
 IMA Status:
Approved IMA 1981
Physical Properties:
 Color:
light blue green.
 Density:
3.23
 Diaphaniety:
Translucent
 Hardness:
3.5-4.5
 Luster:
Silky
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