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
3.28-3.382.56-2.62
1
7.18
1.5 Fracture
Splintery, UnevenArthur Thomas, Difficult, Fibrous
Uneven, Uneven, Gems, Sixth Edition (2006)
1.6 Cleavage
Good on [110]
From the Greek for oblique and fracture, descriptive of the cleavage
1.7 Mohs Hardness
1.8 Chemical Composition
NaAlSi 2O 6Ulrich Henn and Claudio C.
(Na,K)AlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)