Tenacity
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
2.34-2.514.32-4.48
1
7.18
👆🏻
Fracture
-
Uneven, Subconchoidal, Conchoidal
Cleavage
None
{101}, good; {010}, poor
Mohs Hardness
-99993.5
2
10
👆🏻
Chemical Composition
SiO2, Al2O3, FeO, MgO, CaO, K2O, Na2O
Zn 2(AsO 4)(OH)Michael OâDonoghue , Gems, Sixth edition (2006)