Apophyllite and Sodalite Physical Properties

Apophyllite

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

2.30-2.50

2.15-2.40

1.5 Fracture

Uneven, UnevenArthur Thomas, Gemstones (2009)

Conchoidal, Uneven, UnevenArthur Thomas, Brittle

1.6 Cleavage

Perfect on (001)

Poor on {110}

1.7 Mohs Hardness

4.5-5

5-6

1.8 Chemical Composition

KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.

Na₈Al₆Si₆O₂₄Cl₂

Apophyllite and Sodalite Chemical Formula

While comparing Apophyllite 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 Apophyllite and Sodalite chemical formula.

Chemical formula of Apophyllite- KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.
Chemical formula of Sodalite- Na₈Al₆Si₆O₂₄Cl₂

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Apophyllite and Sodalite Specific Gravity

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