Olsacherite

General Information:
 Chemical Formula:
Pb2(SeO4)(SO4)
 Empirical Formula:
Pb2(SeO4)(SO4)
 IMA Status:
Approved IMA 1969
Physical Properties:
 Cleavage:
[???] Good
 Color:
colorless.
 Density:
2.23
 Diaphaniety:
Transparent to Translucent
 Hardness:
3-3.5 - Calcite-Copper Penny
 Luster:
Vitreous - Dull
 Streak:
white
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