Tenacity
Brittle
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
4.00-4.653.90-4.00
1
7.18
👆🏻
Fracture
Uneven, Sub-Conchoidal
Conchoidal
Cleavage
Perfect on [1011]
Perfect on {001}, good on {210}, poor on {010}
Mohs Hardness
5-5.53-3.5
2
10
👆🏻
Chemical Composition
ZnCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
SrSO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references