1 Physical Properties
1.1 Tenacity
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
Not Available2.60-2.65
1
7.18
2.5 Fracture
Not Available
Uneven, Uneven, Gems, Sixth Edition (2006), Uneven, Conchoidal
2.6 Cleavage
Not Available
Perfect on {001}, very good on {010}, imperfect on {110}
2.7 Mohs Hardness
2.11 Chemical Composition
Not Available
NaAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)