Tenacity
Brittle
-
Solubility
Dilute acid
-
Durability
-
-
Specific Gravity
2.93-2.962.08-2.16
1
7.18
👆🏻
Fracture
Subconchoidal, Conchoidal
Irregular/uneven
Cleavage
Distinct on {010}, imperfect {110} and {011}
distinct/good on {1011}
Mohs Hardness
3.5-44.5
2
10
👆🏻
Chemical Composition
CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
CaAl 2Si 4O 12 -6H 2OArthur Thomas , Gemstones (2009)