1 Physical Properties
1.2 Tenacity
Not Available
Not Available
1.4 Solubility
Not Available
Not Available
1.6 Durability
Not Available
Not Available
1.8 Specific Gravity
Not Available2.64-2.69
1
7.18
1.4 Fracture
Sub-Conchoidal, Splintery
Gems, Sixth Edition (2006), Gems, Sixth Edition (2006)
1.5 Cleavage
{201} Imperfect, {100} Poor, {001} Poor
Not Available
1.7 Mohs Hardness
1.12 Chemical Composition
Not Available
SiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)