1 Physical Properties
1.1 Tenacity
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
1.8 Fracture
Not Available
Uneven, Uneven, Gems, Sixth Edition (2006)
1.9 Cleavage
Not Available
Perfect [001] good [010] poor [110]
1.10 Mohs Hardness
1.11 Chemical Composition
Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.
CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)