Sodalite and Sylvite Physical Properties

Sodalite

Sylvite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.15-2.401.993

1 7.18

1.5 Fracture

Conchoidal, Uneven, UnevenArthur Thomas, Brittle

Uneven, Brittle

1.6 Cleavage

Poor on {110}

Perfect on [100], [010], [001]

1.7 Mohs Hardness

5-62.5

2 10

1.8 Chemical Composition

Na₈Al₆Si₆O₂₄Cl₂

Not Available

Sodalite and Sylvite Chemical Formula

While comparing Sodalite and Sylvite 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 Sylvite chemical formula.

Chemical formula of Sodalite- Na₈Al₆Si₆O₂₄Cl₂

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Sodalite and Sylvite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sodalite and Sylvite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sodalite and Sylvite Optical Properties during the identification of gemstone. Specific gravity of Sodalite is 1.993 whereas that of Sylvite is 1.993.