General Information:
Chemical Formula:(H3O,Ca)Al3(AsO4,SO4)2(OH)6
IMA Status:Approved IMA 1979
Physical Properties:
Color:gray green or light green.
Density:3
Diaphaniety:Transparent to Translucent
Hardness:3-4 - Calcite-Fluorite
Luster:Vitreous (Glassy)
Streak:white
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