Chlorite group and Rubellite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.6-3.3
  
3.01-3.06
  
Fracture
Lamellar
  
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
  
Cleavage
Perfect 001
  
Not Available
  
Mohs Hardness
2-2.5
  
7-7.5
  
Chemical Composition
Not Available
  
Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.
  
Chlorite group and Rubellite Chemical Formula
While comparing Chlorite group and Rubellite 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 Chlorite group and Rubellite chemical formula.
>- Chemical formula of Rubellite- Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.
Chlorite group and Rubellite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Chlorite group and Rubellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chlorite group and Rubellite Optical Properties during the identification of gemstone. Specific gravity of Chlorite group is 3.01-3.06 whereas that of Rubellite is 3.01-3.06.