General Information:
Chemical Formula:Al5Sb+++++3O14(OH)2
Composition:(Molecular Weight = 758.16 gm)Aluminum 17.79 %
AlAntimony 48.18 %
SbHydrogen 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
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