Sodalite and Vlasovite Physical Properties

Sodalite

Vlasovite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Soluble

Nearly insoluble in HCl and HNO₃

1.3 Durability

Not Available

1.4 Specific Gravity

2.15-2.402.97

1 7.18

1.5 Fracture

Conchoidal, Uneven, UnevenArthur Thomas, Brittle

Conchoidal, Brittle

1.6 Cleavage

Poor on {110}

Distinct on {010}

1.7 Mohs Hardness

5-66

2 10

1.8 Chemical Composition

Na₈Al₆Si₆O₂₄Cl₂

Not Available

Sodalite and Vlasovite Chemical Formula

While comparing Sodalite and Vlasovite 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 Vlasovite chemical formula.

Chemical formula of Sodalite- Na₈Al₆Si₆O₂₄Cl₂

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Sodalite and Vlasovite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sodalite and Vlasovite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sodalite and Vlasovite Optical Properties during the identification of gemstone. Specific gravity of Sodalite is 2.97 whereas that of Vlasovite is 2.97.