General Information:
Chemical Formula:
CaAlSiO4(OH)
Composition:
(Molecular Weight = 176.15 gm)
Calcium 22.75 % Ca
Aluminum 15.32 % Al
Silicon 15.94 % Si
Hydrogen 0.57 % H
Oxygen 45.41 % O
Empirical Formula:
CaAl(SiO4)(OH)
IMA Status:
Approved IMA 1976
Physical Properties:
Cleavage:
[???] Perfect
Color:
colorless, white, or light pink.
Density:
3.2 - 3.25, Average = 3.22
Diaphaniety:
Transparent to Translucent
Hardness:
6 - Orthoclase
Luster:
Vitreous (Glassy)
Streak:
white
More details...