Sodalite and Kornerupine Physical Properties

Sodalite

Kornerupine

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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

2.15-2.403.25-3.45

1 7.18

1.5 Fracture

Conchoidal, Uneven, UnevenArthur Thomas, Brittle

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

1.6 Cleavage

Poor on {110}

Good on {110}

1.7 Mohs Hardness

5-66.5

2 10

1.8 Chemical Composition

Na₈Al₆Si₆O₂₄Cl₂

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

Sodalite and Kornerupine Chemical Formula

While comparing Sodalite and Kornerupine 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 Kornerupine chemical formula.

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

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Sodalite and Kornerupine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sodalite and Kornerupine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sodalite and Kornerupine Optical Properties during the identification of gemstone. Specific gravity of Sodalite is 3.25-3.45 whereas that of Kornerupine is 3.25-3.45.