Sodalite and Boracite Physical Properties
Tenacity
Brittle
  
Brittle
  
Solubility
Soluble
  
Soluble
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.15-2.40
  
2.95-2.96
  
Fracture
Conchoidal, Uneven, UnevenArthur Thomas, Brittle
  
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
  
Cleavage
Poor on {110}
  
None
  
Mohs Hardness
5-6
  
7-7.5
  
Chemical Composition
Na8Al6Si6O24Cl2
  
Mg 3B 7O 13ClMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Sodalite and Boracite Chemical Formula
While comparing Sodalite and Boracite 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 Boracite chemical formula.
- Chemical formula of Sodalite- Na8Al6Si6O24Cl2
- Chemical formula of Boracite- Mg 3B 7O 13ClMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Sodalite and Boracite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sodalite and Boracite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sodalite and Boracite Optical Properties during the identification of gemstone. Specific gravity of Sodalite is 2.95-2.96 whereas that of Boracite is 2.95-2.96.