Physical Properties
Tenacity
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
2.66-2.803.90-4.00
1
7.18
👆🏻
Fracture
-
Conchoidal
Cleavage
3,1 basal
Perfect on {001}, good on {210}, poor on {010}
Mohs Hardness
7.5-83-3.5
2
10
👆🏻
Chemical Composition
Be3Al2SiO6
SrSO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references