Sodalite and Franklinite Physical Properties

Sodalite

Franklinite

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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

2.15-2.405.05-5.22

1 7.18

1.5 Fracture

Conchoidal, Uneven, UnevenArthur Thomas, Brittle

Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001)

1.6 Cleavage

Poor on {110}

None

1.7 Mohs Hardness

5-65.5-6

2 10

1.8 Chemical Composition

Na₈Al₆Si₆O₂₄Cl₂

(Zn,Mn2+ ,Fe2+ )(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)

Sodalite and Franklinite Chemical Formula

While comparing Sodalite and Franklinite 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 Franklinite chemical formula.

Chemical formula of Sodalite- Na₈Al₆Si₆O₂₄Cl₂
Chemical formula of Franklinite- (Zn,Mn2+ ,Fe2+ )(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)

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Sodalite and Franklinite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sodalite and Franklinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sodalite and Franklinite Optical Properties during the identification of gemstone. Specific gravity of Sodalite is 5.05-5.22 whereas that of Franklinite is 5.05-5.22.