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Sardonyx
Sardonyx

Apatite
Apatite



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Sardonyx
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Apatite

Sardonyx and Apatite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.55-2.70
-
None
6.5-7
SiO 2Ulrich Henn and Claudio C.
 
-
-
-
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

Sardonyx and Apatite Chemical Formula

While comparing Sardonyx 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 Sardonyx and Apatite chemical formula.

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Sardonyx and Apatite Specific Gravity

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