Sodalite and Augelite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Soluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.15-2.40
2.70-2.75
Fracture
Conchoidal, Uneven, UnevenArthur Thomas, Brittle
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
Poor on {110}
From the Greek for luster, for its pearly luster on the cleavage.
Chemical Composition
Na8Al6Si6O24Cl2
Al 2(PO 4)(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)
Sodalite and Augelite Chemical Formula
While comparing Sodalite and Augelite 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 Augelite chemical formula.
- Chemical formula of Sodalite- Na8Al6Si6O24Cl2
- Chemical formula of Augelite- Al 2(PO 4)(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)
Sodalite and Augelite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sodalite and Augelite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sodalite and Augelite Optical Properties during the identification of gemstone. Specific gravity of Sodalite is 2.70-2.75 whereas that of Augelite is 2.70-2.75.