1 Physical Properties
1.1 Tenacity
1.2 Solubility
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
1.5 Fracture
Uneven, Brittle
Uneven, Uneven, Gems, Sixth Edition (2006)
1.6 Cleavage
Perfect on [100], [010], [001]
Not Available
1.7 Mohs Hardness
1.11 Chemical Composition
Not Available
Al 2O 3Michael OâDonoghue , Gems, Sixth Edition (2006)