1 Physical Properties
1.1 Tenacity
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.54-2.613.69-3.81
1
7.18
2.5 Fracture
Uneven, Uneven, Gems, Sixth Edition (2006)
Uneven, Conchoidal to uneven, Brittle, Metallic, Uneven, ConchoidalWalter Schumann, Brittle, Metallic
2.6 Cleavage
{001} Perfect, {010} Good
Distinct on {110}, imperfect on {010}, poor on {001}
2.7 Mohs Hardness
2.11 Chemical Composition
KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
BeAl 2 O 4