Tenacity
Brittle
-
Solubility
-
-
Durability
-
-
Specific Gravity
5.50-5.904.00-4.62
1
7.18
👆🏻
Fracture
Conchoidal
Conchoidal, Uneven
Cleavage
On {10 1 0}, perfect; parting on {000 1 }
Indistinct parting on [111]
Mohs Hardness
47.5-8
2
10
👆🏻
Chemical Composition
(Zn,Mn2+ )OMichael OâDonoghue , Gems, Sixth Edition (2006)
ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)