Sodalite and Covellite Physical Properties
Tenacity
Brittle
Flexible
Solubility
Soluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.15-2.40
4.6-4.76
Fracture
Conchoidal, Uneven, UnevenArthur Thomas, Brittle
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic
Cleavage
Poor on {110}
Perfect on {0001}
Mohs Hardness
5-6
Not Available
Chemical Composition
Na8Al6Si6O24Cl2
CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Sodalite and Covellite Chemical Formula
While comparing Sodalite and Covellite 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 Covellite chemical formula.
- Chemical formula of Sodalite- Na8Al6Si6O24Cl2
- Chemical formula of Covellite- CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Sodalite and Covellite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sodalite and Covellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sodalite and Covellite Optical Properties during the identification of gemstone. Specific gravity of Sodalite is 4.6-4.76 whereas that of Covellite is 4.6-4.76.