Tenacity
Brittle
-
Solubility
-
-
Durability
-
-
Specific Gravity
4.32-4.482.78
1
7.18
👆🏻
Fracture
Uneven, Subconchoidal, Conchoidal
Uneven, Conchoidal
Cleavage
{101}, good; {010}, poor
{???} Distinct, {???} Indistinct
Mohs Hardness
3.55-6
2
10
👆🏻
Chemical Composition
Zn 2(AsO 4)(OH)Michael OâDonoghue , Gems, Sixth edition (2006)
3CaAl 2Si 2O 8 · CaCO 3Anthony et al , Handbook of mineralogy (2001)