Sylvite and Sodalite Physical Properties

Sylvite

Sodalite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

1.9932.15-2.40

1 7.18

1.5 Fracture

Uneven, Brittle

Conchoidal, Uneven, UnevenArthur Thomas, Brittle

1.6 Cleavage

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

Poor on {110}

1.7 Mohs Hardness

2.55-6

2 10

1.8 Chemical Composition

Not Available

Na₈Al₆Si₆O₂₄Cl₂

Sylvite and Sodalite Chemical Formula

While comparing Sylvite 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 Sylvite and Sodalite chemical formula.

Chemical formula of Sodalite- Na₈Al₆Si₆O₂₄Cl₂

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Sylvite and Sodalite Specific Gravity

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