Rossmanite and Sodalite Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
Soluble
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3
  
2.15-2.40
  
Fracture
Brittle, Metallic
  
Conchoidal, Uneven, UnevenArthur Thomas, Brittle
  
Cleavage
None
  
Poor on {110}
  
Mohs Hardness
Not Available
  
5-6
  
Chemical Composition
◻(LiAl 2)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
  
Na8Al6Si6O24Cl2
  
Rossmanite and Sodalite Chemical Formula
While comparing Rossmanite 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 Rossmanite and Sodalite chemical formula.
- Chemical formula of Rossmanite- ◻(LiAl 2)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
- Chemical formula of Sodalite- Na8Al6Si6O24Cl2
Rossmanite and Sodalite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Rossmanite and Sodalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rossmanite and Sodalite Optical Properties during the identification of gemstone. Specific gravity of Rossmanite is 2.15-2.40 whereas that of Sodalite is 2.15-2.40.