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Realgar and Sodalite Physical Properties


Sodalite and Realgar Physical Properties


Physical Properties

Tenacity
Not Available   
Brittle   

Solubility
Not Available   
Soluble   

Durability
Not Available   
Not Available   

Specific Gravity
3.56   
2.15-2.40   

Fracture
(e.g. graphite).   
Conchoidal, Uneven, UnevenArthur Thomas, Brittle   

Cleavage
{010} Good   
Poor on {110}   

Mohs Hardness
Not Available   
5-6   

Chemical Composition
AsSMichael O’Donoghue , Gems, Sixth Edition (2006)   
Na8Al6Si6O24Cl2   

Optical Properties >>
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Realgar and Sodalite Chemical Formula

While comparing Realgar and Sodalite 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 Sodalite chemical formula.

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Realgar and Sodalite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Realgar and Sodalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Realgar and Sodalite Optical Properties during the identification of gemstone. Specific gravity of Realgar is 2.15-2.40 whereas that of Sodalite is 2.15-2.40.

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