Sodalite and Dallasite Physical Properties

Sodalite

Dallasite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.15-2.402.58-2.91

1 7.18

1.5 Fracture

Conchoidal, Uneven, UnevenArthur Thomas, Brittle

Not Available

1.6 Cleavage

Poor on {110}

Not Available

1.7 Mohs Hardness

5-66.5-7

2 10

1.8 Chemical Composition

Na₈Al₆Si₆O₂₄Cl₂

Not Available

Sodalite and Dallasite Chemical Formula

While comparing Sodalite and Dallasite 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 Dallasite chemical formula.

Chemical formula of Sodalite- Na₈Al₆Si₆O₂₄Cl₂

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Sodalite and Dallasite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sodalite and Dallasite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sodalite and Dallasite Optical Properties during the identification of gemstone. Specific gravity of Sodalite is 2.58-2.91 whereas that of Dallasite is 2.58-2.91.