Minerals

GRIPHITE (Na4Ca6(Mn,Fe,Mg)19Li2Al8(PO4)24(F,OH)8)
Class: phosphate
Rarity: Very Rare Crystal:  crystal with a reniform amorphous habit 
Colour: brown;   Lustre: unknown;   Fracture: unknown;  
Hardness - between 5.5 and: 5.5;   Density - between 3.4 and: 3.4
Dana number: 710




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