Tenacity
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
2.55-2.573.90-4.00
1
7.18
👆🏻
Fracture
Uneven
Conchoidal
Cleavage
2,1 basal ; 2,1 prismatic ; 3,1 pinacoidal
Perfect on {001}, good on {210}, poor on {010}
Mohs Hardness
6-6.53-3.5
2
10
👆🏻
Chemical Composition
KAlSi3O8
SrSO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references