Binghamite and Blue John Physical Properties
Tenacity
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Not Available
  
Solubility
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Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.55-2.70
  
3.00-3.25
  
Fracture
Not Available
  
Not Available
  
Cleavage
Not Available
  
Not Available
  
Mohs Hardness
6.5-7
  
Not Available
  
Chemical Composition
SiO 2Arthur Thomas , Gemstones (2009)
  
CaF 2Michael OâDonoghue , Gems, Sixth Edition (2006)
  
Binghamite and Blue John Chemical Formula
While comparing Binghamite 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 Binghamite and Blue John chemical formula.
- Chemical formula of Binghamite- SiO 2Arthur Thomas , Gemstones (2009)
- Chemical formula of Blue John- CaF 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Binghamite and Blue John Specific Gravity
Another important criteria for qualitative analysis of gemstones is Binghamite and Blue John Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Binghamite and Blue John Optical Properties during the identification of gemstone. Specific gravity of Binghamite is 3.00-3.25 whereas that of Blue John is 3.00-3.25.