1 Physical Properties
1.1 Tenacity
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
4.00-4.623.69-3.81
1
7.18
1.5 Fracture
Conchoidal, Uneven
Uneven, Conchoidal to uneven, Brittle, Metallic, Uneven, ConchoidalWalter Schumann, Brittle, Metallic
1.6 Cleavage
Indistinct parting on [111]
Distinct on {110}, imperfect on {010}, poor on {001}
1.7 Mohs Hardness
1.8 Chemical Composition
ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)
BeAl 2 O 4