General Information:
Chemical Formula:AlAsO4
Composition:(Molecular Weight = 165.90 gm)Aluminum 16.26 %
AlArsenic 45.16 %
AsOxygen 38.58 %
O Empirical Formula: Al(AsO4)
Environment:A product of fumarolic exhalations.
IMA Status:Approved IMA (Dana # Added)
Locality:TL: The Tolbachik Main fracture eruption, Kamchatka, Russia.
Name Origin:Named from its chemical composition of Aluminum and Arsenic.
Physical Properties: Cleavage:None
Color:colorless, yellowish, pale green, or bluish.
Density:3.32 - 3.35, Average = 3.33
Diaphaniety:Transparent
Habits:Encrustations - Forms crust-like aggregates on matrix., Anhedral Grains - Granular minerals without the expression of crystal shapes,
Hardness:3 - Calcite
Luminescence:Non-fluorescent.
Luster:Vitreous (Glassy)
Streak:white
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