Tenacity
Brittle
Brittle
Solubility
-
Dilute acid
Durability
-
-
Specific Gravity
2.97-3.032.93-2.96
1
7.18
👆🏻
Fracture
Uneven, ConchoidalWalter Schumann, Conchoidal
Subconchoidal, Conchoidal
Cleavage
{001} Poor
Distinct on {010}, imperfect {110} and {011}
Mohs Hardness
73.5-4
2
10
👆🏻
Chemical Composition
CaB 2(SiO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references