Tenacity
Brittle
Brittle
Solubility
Dilute acid
Easily soluble in cold dilute HCl
Durability
-
-
Specific Gravity
2.93-2.964.12
1
7.18
👆🏻
Fracture
Subconchoidal, Conchoidal
Uneven
Cleavage
Distinct on {010}, imperfect {110} and {011}
Good in two directions parallel to the prism faces {110}
Mohs Hardness
3.5-44-4.5
2
10
👆🏻
Chemical Composition
CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
CaZn(AsO4)(OH)