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Lazurite and Sodalite Physical Properties


Sodalite and Lazurite Physical Properties


Physical Properties

Tenacity
Brittle   
Brittle   

Solubility
Soluble   
Soluble   

Durability
Not Available   
Not Available   

Specific Gravity
2.75   
2.15-2.40   

Fracture
Uneven, UnevenArthur Thomas, Gemstones (2009), Conchoidal, Brittle   
Conchoidal, Uneven, UnevenArthur Thomas, Brittle   

Cleavage
Imperfect on {110}   
Poor on {110}   

Mohs Hardness
5.5   
5-6   

Chemical Composition
(Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.   
Na8Al6Si6O24Cl2   

Optical Properties >>
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Lazurite and Sodalite Chemical Formula

While comparing Lazurite 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 Lazurite and Sodalite chemical formula.

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Lazurite and Sodalite Specific Gravity

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

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