1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.54-2.612.71-2.72
1
7.18
1.5 Fracture
Uneven, Uneven, Gems, Sixth Edition (2006)
Handbook of mineralogy (2001), Difficult, Fibrous
1.6 Cleavage
{001} Perfect, {010} Good
{???} Good
1.7 Mohs Hardness
1.8 Chemical Composition
KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Ca 6Si 6O 17(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)