Tenacity
Brittle
-
Solubility
-
Insoluble in acids
Durability
-
-
Specific Gravity
5.50-5.904.20-4.30
1
7.18
👆🏻
Fracture
Conchoidal
Uneven, Conchoidal
Cleavage
On {10 1 0}, perfect; parting on {000 1 }
{110} good, 100 moderate, parting on {092} and {011}
Mohs Hardness
46-6.5
2
10
👆🏻
Chemical Composition
(Zn,Mn2+ )OMichael OâDonoghue , Gems, Sixth Edition (2006)
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)