Tenacity
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
4.00-4.626.50-7.00
1
7.18
👆🏻
Fracture
Conchoidal, Uneven
Irregular, Conchoidal
Cleavage
Indistinct parting on [111]
On {011}, distinct; on {001}, {013}, indistinct
Mohs Hardness
7.5-83
2
10
👆🏻
Chemical Composition
ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)
PbMoO 4Walter Schumann , Gemstones of the world (2001)