Sodalite and Emerald Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Soluble
  
Not Available
  
Durability
Not Available
  
Hard
  
Specific Gravity
2.15-2.40
  
2.67-2.78
  
Fracture
Conchoidal, Uneven, UnevenArthur Thomas, Brittle
  
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
  
Cleavage
Poor on {110}
  
Imperfect on the [0001]
  
Mohs Hardness
5-6
  
7.5-8
  
Chemical Composition
Na8Al6Si6O24Cl2
  
Be3Al2SiO6
  
Sodalite and Emerald Chemical Formula
While comparing Sodalite and Emerald 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 Emerald chemical formula.
- Chemical formula of Sodalite- Na8Al6Si6O24Cl2
- Chemical formula of Emerald- Be3Al2SiO6
Sodalite and Emerald Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sodalite and Emerald Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sodalite and Emerald Optical Properties during the identification of gemstone. Specific gravity of Sodalite is 2.67-2.78 whereas that of Emerald is 2.67-2.78.