Sodalite and Serandite Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Soluble
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.15-2.40
  
3.52
  
Fracture
Conchoidal, Uneven, UnevenArthur Thomas, Brittle
  
UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001)
  
Cleavage
Poor on {110}
  
{100} Perfect, {001} Perfect
  
Mohs Hardness
5-6
  
5-5.5
  
Chemical Composition
Na8Al6Si6O24Cl2
  
Na(Mn2+ ,Ca) 2Si 3O 8(OH)Michael OâDonoghue , Gems, Sixth Edition (2006)
  
Sodalite and Serandite Chemical Formula
While comparing Sodalite and Serandite 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 Serandite chemical formula.
- Chemical formula of Sodalite- Na8Al6Si6O24Cl2
- Chemical formula of Serandite- Na(Mn2+ ,Ca) 2Si 3O 8(OH)Michael OâDonoghue , Gems, Sixth Edition (2006)
Sodalite and Serandite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sodalite and Serandite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sodalite and Serandite Optical Properties during the identification of gemstone. Specific gravity of Sodalite is 3.52 whereas that of Serandite is 3.52.