Tenacity
Brittle
-
Solubility
Dilute acid
-
Durability
-
-
Specific Gravity
2.93-2.963.1-3.2
1
7.18
👆🏻
Fracture
Subconchoidal, Conchoidal
-
Cleavage
Distinct on {010}, imperfect {110} and {011}
Vitreous, pearly on cleavage
Mohs Hardness
3.5-43-4
2
10
👆🏻
Chemical Composition
CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references