Tenacity
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
-99993.82-3.97
1
7.18
👆🏻
Fracture
-
Subconchoidal, Conchoidal
Cleavage
-
Perfect on [001] and [011]
Mohs Hardness
-99995.5-6
2
10
👆🏻
Chemical Composition
SiO2, Al2O3, CaO, MgO, FeO
TiO 2Michael OâDonoghue , Gems, Sixth edition (2006) More from other references