General Information:
Chemical Formula:
Na7(PO4)2F·19(H2O)
Composition:
(Molecular Weight = 712.16 gm)
Sodium 22.60 % Na
Phosphorus 8.70 % P
Hydrogen 5.38 % H
Oxygen 60.66 % O
Fluorine 2.67 % F
Empirical Formula:
Na7(PO4)2F·19(H2O)
IMA Status:
Approved IMA 1972
Physical Properties:
Cleavage:
[111] Indistinct
Color:
colorless or white.
Density:
1.71 - 1.722, Average = 1.71
Diaphaniety:
Transparent
Hardness:
2.5 - Finger Nail
Luminescence:
Fluorescent.
Luster:
Vitreous - Greasy
Streak:
white
More details...