Tenacity
Brittle
Brittle
Solubility
-
Dilute acid
Durability
-
-
Specific Gravity
3.20-3.252.93-2.96
1
7.18
👆🏻
Fracture
Uneven, Conchoidal
Subconchoidal, Conchoidal
Cleavage
Good/distinct on [210]
Distinct on {010}, imperfect {110} and {011}
Mohs Hardness
5.53.5-4
2
10
👆🏻
Chemical Composition
Mg 2Si 2O 6Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references