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