Oligoclase and Sodalite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Soluble
Durability
Not Available
Not Available
Specific Gravity
2.62-2.67
2.15-2.40
Fracture
Gems, Sixth Edition (2006), Gems, Sixth Edition (2006), Uneven
Conchoidal, Uneven, UnevenArthur Thomas, Brittle
Cleavage
From the Greek, oligos and kasein, little cleavage.
Poor on {110}
Chemical Composition
Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Na8Al6Si6O24Cl2
Oligoclase and Sodalite Chemical Formula
While comparing Oligoclase and Sodalite 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 Oligoclase and Sodalite chemical formula.
- Chemical formula of Oligoclase- Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Sodalite- Na8Al6Si6O24Cl2
Oligoclase and Sodalite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Oligoclase and Sodalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Oligoclase and Sodalite Optical Properties during the identification of gemstone. Specific gravity of Oligoclase is 2.15-2.40 whereas that of Sodalite is 2.15-2.40.