General Information:
Chemical Formula:
MgAl2Si2O6(OH)4
Composition:
(Molecular Weight = 298.46 gm)
Magnesium 8.14 % Mg
Aluminum 18.08 % Al
Silicon 18.82 % Si
Hydrogen 1.35 % H
Oxygen 53.61 % O
Empirical Formula:
MgAl2Si2O6(OH)4
IMA Status:
Approved IMA 1978
Physical Properties:
Cleavage:
[???] Good
Color:
gray green or white.
Diaphaniety:
Translucent
Hardness:
5-5.5 - Apatite-Knife Blade
Luster:
Silky
Streak:
white
More details...