Sodalite and Chiastolite Physical Properties

Sodalite

Chiastolite

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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

2.15-2.403.00-3.15

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

5-65-5.5

2 10

1.8 Chemical Composition

Na₈Al₆Si₆O₂₄Cl₂

Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006)

Sodalite and Chiastolite Chemical Formula

While comparing Sodalite and Chiastolite 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 Chiastolite chemical formula.

Chemical formula of Sodalite- Na₈Al₆Si₆O₂₄Cl₂
Chemical formula of Chiastolite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006)

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Sodalite and Chiastolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sodalite and Chiastolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sodalite and Chiastolite Optical Properties during the identification of gemstone. Specific gravity of Sodalite is 3.00-3.15 whereas that of Chiastolite is 3.00-3.15.