Chrome Tourmaline and Blue John Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.85-3.35
  
3.00-3.25
  
Fracture
ConchoidalArthur Thomas, Gemstones (2009)
  
Not Available
  
Cleavage
3,2
  
Not Available
  
Mohs Hardness
7-7.5
  
Not Available
  
Chemical Composition
Tourmaline is a series of several different minerals with unique chemical formulas.
  
CaF 2Michael OâDonoghue , Gems, Sixth Edition (2006)
  
Chrome Tourmaline and Blue John Chemical Formula
While comparing Chrome Tourmaline and Blue John 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 Chrome Tourmaline and Blue John chemical formula.
- Chemical formula of Chrome Tourmaline- Tourmaline is a series of several different minerals with unique chemical formulas.
- Chemical formula of Blue John- CaF 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Chrome Tourmaline and Blue John Specific Gravity
Another important criteria for qualitative analysis of gemstones is Chrome Tourmaline and Blue John Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chrome Tourmaline and Blue John Optical Properties during the identification of gemstone. Specific gravity of Chrome Tourmaline is 3.00-3.25 whereas that of Blue John is 3.00-3.25.