Tenacity
Brittle
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
2.79-2.873.82-3.97
1
7.18
👆🏻
Fracture
Conchoidal
Subconchoidal, Conchoidal
Cleavage
{010} perfect; {100} good, interrupted; {101} indistinct; {001} in traces
Perfect on [001] and [011]
Mohs Hardness
5.5-65.5-6
2
10
👆🏻
Chemical Composition
NaBePO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
TiO 2Michael OâDonoghue , Gems, Sixth edition (2006) More from other references