Kornerupine and Sodalite Physical Properties

Kornerupine

Sodalite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.25-3.452.15-2.40

1 7.18

1.5 Fracture

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Brittle, Uneven

Conchoidal, Uneven, UnevenArthur Thomas, Brittle

1.6 Cleavage

Good on {110}

Poor on {110}

1.7 Mohs Hardness

6.55-6

2 10

1.8 Chemical Composition

Mg 3Al 6(Si,Al,B) 5O 21(OH)Walter Schumann , Gemstones of the world (2001) More from other references

Na₈Al₆Si₆O₂₄Cl₂

Kornerupine and Sodalite Chemical Formula

While comparing Kornerupine 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 Kornerupine and Sodalite chemical formula.

Chemical formula of Kornerupine- Mg 3Al 6(Si,Al,B) 5O 21(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Chemical formula of Sodalite- Na₈Al₆Si₆O₂₄Cl₂

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Kornerupine and Sodalite Specific Gravity

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