General Information:
Chemical Formula:
Na4Ca6(Mn,Fe++,Mg)19Li2Al8(PO4)24(F,OH)8
Physical Properties:
Cleavage:
None
Color:
brownish black, yellow, or dark brown.
Density:
3.4
Diaphaniety:
Translucent
Habits:
Reniform - "Kidney like" in shape (e.g.. hematite)., Amorphous - No crystalline form or imitative shape.,
Hardness:
5.5 - Knife Blade
Luminescence:
Non-fluorescent.
Luster:
Vitreous - Resinous
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