Tenacity
Brittle
-
Solubility
-
-
Durability
-
-
Specific Gravity
6.50-7.003.32-3.43
1
7.18
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Fracture
Irregular, Conchoidal
Conchoidal
Cleavage
On {011}, distinct; on {001}, {013}, indistinct
Poor on {110} and {100} very poor on {001}
Mohs Hardness
36-7
2
10
👆🏻
Chemical Composition
PbMoO 4Walter Schumann , Gemstones of the world (2001)
Ca10(Mg,Fe)2Al4(SiO4)5(Si2O7)2(OH)4