Tenacity
Brittle
Sectile
Solubility
Dilute acid
-
Durability
-
-
Specific Gravity
2.93-2.962.39
1
7.18
👆🏻
Fracture
Subconchoidal, Conchoidal
Irregular
Cleavage
Distinct on {010}, imperfect {110} and {011}
Perfect on {0001}
Mohs Hardness
3.5-42.5
2
10
👆🏻
Chemical Composition
CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Mg(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)