Sodalite and Scapolite Physical Properties

Sodalite

Scapolite

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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

2.15-2.402.58-2.74

1 7.18

1.5 Fracture

Conchoidal, Uneven, UnevenArthur Thomas, Brittle

ConchoidalWalter Schumann, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Splintery

1.6 Cleavage

Poor on {110}

{100} Distinct, {110} Distinct

1.7 Mohs Hardness

5-65.5-6

2 10

1.8 Chemical Composition

Na₈Al₆Si₆O₂₄Cl₂

Na 4Al 3Si 9O 24Cl to Ca 4Al 6Si 6O 24(CO 3,SO 4)Walter Schumann , Gemstones of the world (2001) More from other references

Sodalite and Scapolite Chemical Formula

While comparing Sodalite and Scapolite 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 Scapolite chemical formula.

Chemical formula of Sodalite- Na₈Al₆Si₆O₂₄Cl₂
Chemical formula of Scapolite- Na 4Al 3Si 9O 24Cl to Ca 4Al 6Si 6O 24(CO 3,SO 4)Walter Schumann , Gemstones of the world (2001) More from other references

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Sodalite and Scapolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sodalite and Scapolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sodalite and Scapolite Optical Properties during the identification of gemstone. Specific gravity of Sodalite is 2.58-2.74 whereas that of Scapolite is 2.58-2.74.