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Sodalite and Austinite Physical Properties


Austinite and Sodalite Physical Properties


Physical Properties

Tenacity
Brittle   
Brittle   

Solubility
Soluble   
Easily soluble in cold dilute HCl   

Durability
Not Available   
Not Available   

Specific Gravity
2.15-2.40   
4.12   

Fracture
Conchoidal, Uneven, UnevenArthur Thomas, Brittle   
Brittle, Uneven, Brittle, Uneven   

Cleavage
Poor on {110}   
Good in two directions parallel to the prism faces {110}   

Mohs Hardness
5-6   
4-4.5   

Chemical Composition
Na8Al6Si6O24Cl2   
CaZn(AsO4)(OH)   

Optical Properties >>
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Sodalite and Austinite Chemical Formula

While comparing Sodalite and Austinite 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 Sodalite and Austinite chemical formula.

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Sodalite and Austinite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sodalite and Austinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sodalite and Austinite Optical Properties during the identification of gemstone. Specific gravity of Sodalite is 4.12 whereas that of Austinite is 4.12.

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