Sodalite and Thomsonite Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Soluble
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.15-2.40
  
2.25-2.40
  
Fracture
Conchoidal, Uneven, UnevenArthur Thomas, Brittle
  
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)
  
Cleavage
Poor on {110}
  
perfect on {010}; good on {100}
  
Mohs Hardness
5-6
  
5-5.5
  
Chemical Composition
Na8Al6Si6O24Cl2
  
NaCa 2Al 5Si 5O 20 · 6H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Sodalite and Thomsonite Chemical Formula
While comparing Sodalite and Thomsonite 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 Thomsonite chemical formula.
- Chemical formula of Sodalite- Na8Al6Si6O24Cl2
- Chemical formula of Thomsonite- NaCa 2Al 5Si 5O 20 · 6H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Sodalite and Thomsonite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sodalite and Thomsonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sodalite and Thomsonite Optical Properties during the identification of gemstone. Specific gravity of Sodalite is 2.25-2.40 whereas that of Thomsonite is 2.25-2.40.