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Sodalite
Sodalite

Gypsum
Gypsum



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Sodalite
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Gypsum

Sodalite and Gypsum Physical Properties

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1 Physical Properties
1.1 Tenacity
Brittle
Flexible
1.2 Solubility
Soluble
Soluble
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.15-2.402.20-2.40
Amber
1 7.18
1.5 Fracture
Conchoidal, Uneven, UnevenArthur Thomas, Brittle
Conchoidal, Splintery, Fibrous, UnevenArthur Thomas, Gemstones (2009)
1.6 Cleavage
Poor on {110}
Perfect on {010}, distinct on {100}
1.7 Mohs Hardness
5-62
Amber
2 10
1.8 Chemical Composition
Na8Al6Si6O24Cl2
CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)

Sodalite and Gypsum Chemical Formula

While comparing Sodalite and Gypsum 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 Gypsum chemical formula.

  • Chemical formula of Sodalite- Na8Al6Si6O24Cl2
  • Chemical formula of Gypsum- CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)

Sodalite and Gypsum Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sodalite and Gypsum Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sodalite and Gypsum Optical Properties during the identification of gemstone. Specific gravity of Sodalite is 2.20-2.40 whereas that of Gypsum is 2.20-2.40.