Tenacity
Brittle
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
6.50-7.004.32-4.48
1
7.18
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Fracture
Irregular, Conchoidal
Uneven, Subconchoidal, Conchoidal
Cleavage
On {011}, distinct; on {001}, {013}, indistinct
{101}, good; {010}, poor
Mohs Hardness
33.5
2
10
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Chemical Composition
PbMoO 4Walter Schumann , Gemstones of the world (2001)
Zn 2(AsO 4)(OH)Michael OâDonoghue , Gems, Sixth edition (2006)