General Information:
Chemical Formula:
Ca5(SiO4)2(OH,F)2
Composition:
(Molecular Weight = 419.57 gm)
Calcium 47.76 % Ca
Silicon 13.39 % Si
Hydrogen 0.36 % H
Oxygen 36.23 % O
Fluorine 2.26 % F
Empirical Formula:
Ca5(SiO4)2(OH)1.5F0.5
IMA Status:
Approved IMA 1983
Physical Properties:
Cleavage:
[110] Distinct
Color:
light pink.
Density:
2.84
Hardness:
5-6 - Between Apatite and Orthoclase
Luster:
Vitreous (Glassy)
Streak:
white
More details...