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Apatite
Apatite

Sardonyx
Sardonyx



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Apatite
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Sardonyx

Apatite and Sardonyx Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.16-3.23
Conchoidal, Uneven, Conchoidal to uneven
[0001] indistinct, [1010] indistinct
5
Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references
 
-
-
-
2.55-2.70
-
None
6.5-7
SiO 2Ulrich Henn and Claudio C.

Apatite and Sardonyx Chemical Formula

While comparing Apatite and Sardonyx 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 Sardonyx chemical formula.

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Apatite and Sardonyx Specific Gravity

Another important criteria for qualitative analysis of gemstones is Apatite and Sardonyx Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apatite Vs Sardonyx during the identification of gemstone. Specific gravity of Apatite is whereas that of Sardonyx is .