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Sodalite
Sodalite

Oligoclase
Oligoclase



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Sodalite
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Oligoclase

Sodalite and Oligoclase Physical Properties

1 Physical Properties
1.1 Tenacity
Brittle
Not Available
1.2 Solubility
Soluble
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.15-2.402.62-2.67
Amber
1 7.18
1.5 Fracture
Conchoidal, Uneven, UnevenArthur Thomas, Brittle
Gems, Sixth Edition (2006), Gems, Sixth Edition (2006), Uneven
1.6 Cleavage
Poor on {110}
From the Greek, oligos and kasein, little cleavage.
1.7 Mohs Hardness
5-66-6.5
Amber
2 10
1.8 Chemical Composition
Na8Al6Si6O24Cl2
Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael O’Donoghue , Gems, Sixth Edition (2006)

Sodalite and Oligoclase Chemical Formula

While comparing Sodalite and Oligoclase 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 Oligoclase chemical formula.

  • Chemical formula of Sodalite- Na8Al6Si6O24Cl2
  • Chemical formula of Oligoclase- Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael O’Donoghue , Gems, Sixth Edition (2006)

Sodalite and Oligoclase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sodalite and Oligoclase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sodalite and Oligoclase Optical Properties during the identification of gemstone. Specific gravity of Sodalite is 2.62-2.67 whereas that of Oligoclase is 2.62-2.67.