Albite and Sodalite Physical Properties
Tenacity
Brittle
  
Brittle
  
Solubility
Not Available
  
Soluble
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.60-2.65
  
2.15-2.40
  
Fracture
Uneven, Uneven, Gems, Sixth Edition (2006), Uneven, Conchoidal
  
Conchoidal, Uneven, UnevenArthur Thomas, Brittle
  
Cleavage
Perfect on {001}, very good on {010}, imperfect on {110}
  
Poor on {110}
  
Mohs Hardness
6-6.5
  
5-6
  
Chemical Composition
NaAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
  
Na8Al6Si6O24Cl2
  
Albite and Sodalite Chemical Formula
While comparing Albite 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 Albite and Sodalite chemical formula.
- Chemical formula of Albite- NaAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Sodalite- Na8Al6Si6O24Cl2
Albite and Sodalite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Albite and Sodalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Albite and Sodalite Optical Properties during the identification of gemstone. Specific gravity of Albite is 2.15-2.40 whereas that of Sodalite is 2.15-2.40.