Poldervaartite and Sodalite Physical Properties

Poldervaartite

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

2.912.15-2.40

1 7.18

1.5 Fracture

Handbook of mineralogy (2001)

Conchoidal, Uneven, UnevenArthur Thomas, Brittle

1.6 Cleavage

None

Poor on {110}

1.7 Mohs Hardness

Not Available5-6

2 10

1.8 Chemical Composition

(Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)

Na₈Al₆Si₆O₂₄Cl₂

Poldervaartite and Sodalite Chemical Formula

While comparing Poldervaartite 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 Poldervaartite and Sodalite chemical formula.

Chemical formula of Poldervaartite- (Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)
Chemical formula of Sodalite- Na₈Al₆Si₆O₂₄Cl₂

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Poldervaartite and Sodalite Specific Gravity

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