General Information:
Chemical Formula:
NaCa2Al2(PO4)2(F,OH)5·2(H2O)
Composition:
(Molecular Weight = 475.59 gm)
Sodium 4.83 % Na
Calcium 16.85 % Ca
Aluminum 11.35 % Al
Phosphorus 13.03 % P
Hydrogen 1.11 % H
Oxygen 37.85 % O
Fluorine 14.98 % F
Empirical Formula:
NaCa2Al2(PO4)2F3.75(OH)1.25·2(H2O)
IMA Status:
Approved IMA 1962
Physical Properties:
Cleavage:
[100] Perfect, [001] Indistinct
Color:
colorless, white, light pink, or pink.
Density:
2.962
Diaphaniety:
Translucent
Hardness:
4-4.5 - Between Fluorite and Apatite
Luster:
Vitreous - Greasy
Streak:
white
More details...