1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.2 Durability
Not Available
Not Available
1.4 Specific Gravity
2.54-2.611.98-2.50
1
7.18
1.15 Fracture
Uneven, Uneven, Gems, Sixth Edition (2006)
Conchoidal, Conchoidal, Gemstones of the world (2001)
1.16 Cleavage
{001} Perfect, {010} Good
Not Available
1.17 Mohs Hardness
1.18 Chemical Composition
KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)