Tenacity
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
-99993.87-4.14
1
7.18
👆🏻
Fracture
-
Subconchoidal, Conchoidal
Cleavage
Indiscernible
Poor on {120}, in traces on {001}
Mohs Hardness
-99995.5-6
2
10
👆🏻
Chemical Composition
(Na,Li)3Al6Si6O18(BO3)3(OH)4
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references