General Information:
Chemical Formula:
Al5Sb+++++3O14(OH)2
Composition:
(Molecular Weight = 758.16 gm)
Aluminum 17.79 % Al
Antimony 48.18 % Sb
Hydrogen 0.27 % H
Oxygen 33.76 % O
Empirical Formula:
Al5Sb3O14(OH)2
IMA Status:
Approved IMA 1974
Physical Properties:
Cleavage:
[100] Perfect
Color:
colorless, violet, cream white, or light brown.
Density:
4.89 - 5.46, Average = 5.17
Diaphaniety:
Transparent
Hardness:
9 - Corundum
Luster:
Adamantine
Streak:
white
More details...