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Realgar
Realgar

Apatite
Apatite



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Realgar
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Realgar and Apatite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.56
-
{010} Good
-9999
AsSMichael O’Donoghue , Gems, Sixth Edition (2006)
 
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-
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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

Realgar and Apatite Chemical Formula

While comparing Realgar 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 Realgar and Apatite chemical formula.

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Realgar and Apatite Specific Gravity

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