1 Physical Properties
1.1 Tenacity
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.55-2.572.60-2.65
1
7.18
2.3 Fracture
Uneven, Uneven, Gems, Sixth Edition (2006)
Uneven, Uneven, Gems, Sixth Edition (2006), Uneven, Conchoidal
2.5 Cleavage
2,1 basal ; 2,1 prismatic ; 3,1 pinacoidal
Perfect on {001}, very good on {010}, imperfect on {110}
2.7 Mohs Hardness
2.15 Chemical Composition
KAlSi3O8
NaAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)