Apatite and Calcite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Soluble
Durability
Not Available
Not Available
Specific Gravity
3.16-3.23
2.67-2.73
Fracture
Conchoidal, Uneven, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal to uneven
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Cleavage
[0001] indistinct, [1010] indistinct
Perfect on [10 1 1] three directions with angle of 74° 55
Chemical Composition
Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references
CaCO 3Ulrich Henn and Claudio C.
Apatite and Calcite Chemical Formula
While comparing Apatite and Calcite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Apatite and Calcite chemical formula.
- Chemical formula of Apatite- Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references
- Chemical formula of Calcite- CaCO 3Ulrich Henn and Claudio C.
Apatite and Calcite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Apatite and Calcite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apatite and Calcite Optical Properties during the identification of gemstone. Specific gravity of Apatite is 2.67-2.73 whereas that of Calcite is 2.67-2.73.