Tenacity
Brittle
Brittle
Solubility
Dilute acid
-
Durability
-
-
Specific Gravity
2.93-2.964.32-4.48
1
7.18
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Fracture
Subconchoidal, Conchoidal
Uneven, Subconchoidal, Conchoidal
Cleavage
Distinct on {010}, imperfect {110} and {011}
{101}, good; {010}, poor
Mohs Hardness
3.5-43.5
2
10
👆🏻
Chemical Composition
CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Zn 2(AsO 4)(OH)Michael OâDonoghue , Gems, Sixth edition (2006)