Tenacity
Brittle
-
Solubility
-
Insoluble in acids
Durability
-
-
Specific Gravity
4.32-4.484.20-4.30
1
7.18
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Fracture
Uneven, Subconchoidal, Conchoidal
Uneven, Conchoidal
Cleavage
{101}, good; {010}, poor
{110} good, 100 moderate, parting on {092} and {011}
Mohs Hardness
3.56-6.5
2
10
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Chemical Composition
Zn 2(AsO 4)(OH)Michael OâDonoghue , Gems, Sixth edition (2006)
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)