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Sodalite
Sodalite

Amethyst
Amethyst



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Sodalite
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Amethyst

Sodalite and Amethyst Physical Properties

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1 Physical Properties
1.1 Tenacity
Brittle
Not Available
1.2 Solubility
Soluble
insoluble in common solvents
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.15-2.40
2.65
1.5 Fracture
Conchoidal, Uneven, UnevenArthur Thomas, Brittle
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)
1.6 Cleavage
Poor on {110}
Indiscernible
1.7 Mohs Hardness
5-6
7
1.8 Chemical Composition
Na8Al6Si6O24Cl2
SiO2

Sodalite and Amethyst Chemical Formula

While comparing Sodalite and Amethyst 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 Amethyst chemical formula.

  • Chemical formula of Sodalite- Na8Al6Si6O24Cl2
  • Chemical formula of Amethyst- SiO2

Sodalite and Amethyst Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sodalite and Amethyst Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sodalite and Amethyst Optical Properties during the identification of gemstone. Specific gravity of Sodalite is 2.65 whereas that of Amethyst is 2.65.

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