1 Physical Properties
1.1 Tenacity
1.4 Solubility
Not Available
Not Available
1.6 Durability
Not Available
Not Available
1.7 Specific Gravity
3.20-3.263.01-3.06
1
7.18
1.8 Fracture
Splintery
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
1.9 Cleavage
{010} perfect
Not Available
1.10 Mohs Hardness
1.14 Chemical Composition
Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)
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.