Machatschkiite

General Information:
 Chemical Formula:
(Ca,Na)6(As+++++O4)(As+++++O3OH)3(PO4,SO4)·15(H2O)
 IMA Status:
Approved IMA 1977
Physical Properties:
 Cleavage:
None
 Color:
colorless.
 Density:
2.5
 Diaphaniety:
Transparent to Translucent
 Hardness:
2-3 - Gypsum-Calcite
 Luster:
Vitreous (Glassy)
 Streak:
white
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