Sapphirine and Sodalite Physical Properties

Sapphirine

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

3.40-3.582.15-2.40

1 7.18

1.5 Fracture

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

Conchoidal, Uneven, UnevenArthur Thomas, Brittle

1.6 Cleavage

{010} Perfect

Poor on {110}

1.7 Mohs Hardness

7.55-6

2 10

1.8 Chemical Composition

(Al,Mg) 8(Al,Si) 6O 20Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Na₈Al₆Si₆O₂₄Cl₂

Sapphirine and Sodalite Chemical Formula

While comparing Sapphirine 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 Sapphirine and Sodalite chemical formula.

Chemical formula of Sapphirine- (Al,Mg) 8(Al,Si) 6O 20Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Sodalite- Na₈Al₆Si₆O₂₄Cl₂

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Sapphirine and Sodalite Specific Gravity

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