Sugilite and Sodalite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Soluble
Durability
Not Available
Not Available
Specific Gravity
2.69-2.79
2.15-2.40
Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Conchoidal, Uneven, UnevenArthur Thomas, Brittle
Cleavage
Poor on {0001}
Poor on {110}
Mohs Hardness
5.5-6.5
5-6
Chemical Composition
KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Na8Al6Si6O24Cl2
Sugilite and Sodalite Chemical Formula
While comparing Sugilite 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 Sugilite and Sodalite chemical formula.
- Chemical formula of Sugilite- KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Sodalite- Na8Al6Si6O24Cl2
Sugilite and Sodalite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sugilite and Sodalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sugilite and Sodalite Optical Properties during the identification of gemstone. Specific gravity of Sugilite is 2.15-2.40 whereas that of Sodalite is 2.15-2.40.