Tenacity
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
-99993.90-4.00
1
7.18
👆🏻
Fracture
-
Conchoidal
Cleavage
-
Perfect on {001}, good on {210}, poor on {010}
Mohs Hardness
-99993-3.5
2
10
👆🏻
Chemical Composition
SiO2, Al2O3, CaO, MgO, FeO
SrSO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references