Nacaphite

General Information:
 Chemical Formula:
Na2Ca(PO4)F
 Composition:
(Molecular Weight = 200.03 gm)
Sodium 22.99 % Na
Calcium 20.04 % Ca
Phosphorus 15.48 % P 
Oxygen 31.99 % O 
Fluorine 9.50 % F 
 Empirical Formula:
Na2Ca(PO4)F
 IMA Status:
Approved IMA 1980
 Name Origin:
Named after the composition (NaCa, Phosphate).
Physical Properties:
 Cleavage:
None
 Color:
colorless or white.
 Density:
2.85
 Diaphaniety:
Transparent
 Hardness:
3 - Calcite
 Luster:
Vitreous (Glassy)
 Streak:
white
More details...