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Calcite
Calcite

Apatite
Apatite



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Calcite and Apatite Physical Properties

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1 Physical Properties
1.1 Tenacity
Brittle
Not Available
1.2 Solubility
Soluble
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.67-2.73
3.16-3.23
1.5 Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Conchoidal, Uneven, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal to uneven
1.6 Cleavage
Perfect on [10 1 1] three directions with angle of 74° 55
[0001] indistinct, [1010] indistinct
1.7 Mohs Hardness
3
5
1.8 Chemical Composition
CaCO 3Ulrich Henn and Claudio C.
Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references

Calcite and Apatite Chemical Formula

While comparing Calcite and Apatite 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 Calcite and Apatite chemical formula.

  • Chemical formula of Calcite- CaCO 3Ulrich Henn and Claudio C.
  • Chemical formula of Apatite- Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references

Calcite and Apatite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Calcite and Apatite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Calcite and Apatite Optical Properties during the identification of gemstone. Specific gravity of Calcite is 3.16-3.23 whereas that of Apatite is 3.16-3.23.