Sodalite and Sugilite Physical Properties

Sodalite

Sugilite

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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

2.15-2.402.69-2.79

1 7.18

1.5 Fracture

Conchoidal, Uneven, UnevenArthur Thomas, Brittle

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

1.6 Cleavage

Poor on {110}

Poor on {0001}

1.7 Mohs Hardness

5-65.5-6.5

2 10

1.8 Chemical Composition

Na₈Al₆Si₆O₂₄Cl₂

KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Sodalite and Sugilite Chemical Formula

While comparing Sodalite and Sugilite 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 Sugilite chemical formula.

Chemical formula of Sodalite- Na₈Al₆Si₆O₂₄Cl₂
Chemical formula of Sugilite- KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Sodalite and Sugilite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sodalite and Sugilite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sodalite and Sugilite Optical Properties during the identification of gemstone. Specific gravity of Sodalite is 2.69-2.79 whereas that of Sugilite is 2.69-2.79.