1 Physical Properties
1.1 Tenacity
1.2 Solubility
Dilute acid
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.93-2.961.98-2.25
1
7.18
1.5 Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references
1.6 Cleavage
Distinct on {010}, imperfect {110} and {011}
Not Available
1.7 Mohs Hardness
1.8 Chemical Composition
CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
SiO 2 · nH 2OGemdat.org , Management Team (2012)