Tenacity
Brittle
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.90-4.004.00-4.62
1
7.18
👆🏻
Fracture
Conchoidal
Conchoidal, Uneven
Cleavage
Perfect on {001}, good on {210}, poor on {010}
Indistinct parting on [111]
Mohs Hardness
3-3.57.5-8
2
10
👆🏻
Chemical Composition
SrSO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)