General Information:
Chemical Formula:
BaMg2LiAl3Si4O12(OH,F)8
Composition:
(Molecular Weight = 718.20 gm)
Barium 19.12 % Ba
Lithium 0.97 % Li
Magnesium 6.77 % Mg
Aluminum 11.27 % Al
Silicon 15.64 % Si
Hydrogen 0.84 % H
Oxygen 40.10 % O
Fluorine 5.29 % F
Empirical Formula:
BaMg2LiAl3Si4O12(OH)6F2
IMA Status:
Approved IMA 1975
Physical Properties:
Cleavage:
[010] Good
Color:
white or light yellow.
Density:
3.33 - 3.35, Average = 3.34
Diaphaniety:
Transparent to Translucent
Hardness:
5-5.5 - Apatite-Knife Blade
Luster:
Silky
Streak:
white
More details...