Sodalite and Pyrophyllite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Soluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.15-2.40
2.65-2.90
Fracture
Conchoidal, Uneven, UnevenArthur Thomas, Brittle
Gemstones (2009), Flexible Flexible fragments.
Cleavage
Poor on {110}
{001} Perfect
Mohs Hardness
5-6
Not Available
Chemical Composition
Na8Al6Si6O24Cl2
Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Sodalite and Pyrophyllite Chemical Formula
While comparing Sodalite and Pyrophyllite 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 Pyrophyllite chemical formula.
- Chemical formula of Sodalite- Na8Al6Si6O24Cl2
- Chemical formula of Pyrophyllite- Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Sodalite and Pyrophyllite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sodalite and Pyrophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sodalite and Pyrophyllite Optical Properties during the identification of gemstone. Specific gravity of Sodalite is 2.65-2.90 whereas that of Pyrophyllite is 2.65-2.90.