1 Physical Properties
1.1 Tenacity
1.2 Solubility
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
1.847-1.8522.60-2.65
1
7.18
1.5 Fracture
Brittle, Conchoidal
Uneven, Uneven, Gems, Sixth Edition (2006), Uneven, Conchoidal
1.6 Cleavage
Poor to indistinct on {010}
Perfect on {001}, very good on {010}, imperfect on {110}
1.7 Mohs Hardness
1.8 Chemical Composition
Not Available
NaAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)