Rubellite and Hessonite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.01-3.06
  
3.55-3.73
  
Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
  
Uneven
  
Cleavage
Not Available
  
Not Available
  
Mohs Hardness
7-7.5
  
7-7.5
  
Chemical Composition
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.
  
Not Available
  
Rubellite and Hessonite Chemical Formula
While comparing Rubellite and Hessonite 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 Rubellite and Hessonite 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.
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Rubellite and Hessonite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Rubellite and Hessonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rubellite and Hessonite Optical Properties during the identification of gemstone. Specific gravity of Rubellite is 3.55-3.73 whereas that of Hessonite is 3.55-3.73.