Clinozoisite and Sodalite Physical Properties

Clinozoisite

Sodalite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.21-3.382.15-2.40

1 7.18

1.5 Fracture

Irregular/uneven, Uneven

Conchoidal, Uneven, UnevenArthur Thomas, Brittle

1.6 Cleavage

Perfect on {001}

Poor on {110}

1.7 Mohs Hardness

6-75-6

2 10

1.8 Chemical Composition

Ca 2Al 3(SiO 4) 3(OH)Walter Schumann , Gemstones of the world (2001) More from other references

Na₈Al₆Si₆O₂₄Cl₂

Clinozoisite and Sodalite Chemical Formula

While comparing Clinozoisite 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 Clinozoisite and Sodalite chemical formula.

Chemical formula of Clinozoisite- Ca 2Al 3(SiO 4) 3(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Chemical formula of Sodalite- Na₈Al₆Si₆O₂₄Cl₂

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Clinozoisite and Sodalite Specific Gravity

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