Hiddenite and Rubellite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.15-3.21
  
3.01-3.06
  
Fracture
Gemstones of the world (2001), UnevenWalter Schumann, Gemstones of the world (2001)
  
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
  
Cleavage
1,2 prismatic
  
Not Available
  
Mohs Hardness
6-7
  
7-7.5
  
Chemical Composition
LiAlSi2O6
  
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.
  
Hiddenite and Rubellite Chemical Formula
While comparing Hiddenite 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 Hiddenite and Rubellite chemical formula.
- Chemical formula of Hiddenite- LiAlSi2O6
- 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.
Hiddenite and Rubellite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Hiddenite and Rubellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hiddenite and Rubellite Optical Properties during the identification of gemstone. Specific gravity of Hiddenite is 3.01-3.06 whereas that of Rubellite is 3.01-3.06.