Tenacity
-
-
Solubility
-
Insoluble in acids
Durability
-
-
Specific Gravity
4.00-4.624.20-4.30
1
7.18
👆🏻
Fracture
Conchoidal, Uneven
Uneven, Conchoidal
Cleavage
Indistinct parting on [111]
{110} good, 100 moderate, parting on {092} and {011}
Mohs Hardness
7.5-86-6.5
2
10
👆🏻
Chemical Composition
ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)