Tenacity
Brittle
-
Solubility
Dilute acid
-
Durability
-
-
Specific Gravity
2.93-2.963.08-3.12
1
7.18
👆🏻
Fracture
Subconchoidal, Conchoidal
ConchoidalWalter Schumann
Cleavage
Distinct on {010}, imperfect {110} and {011}
{010} Perfect
Mohs Hardness
3.5-47.5
2
10
👆🏻
Chemical Composition
CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
BeAlSiO 4(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references