Sunstone and Blue John Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.62-2.65
  
3.00-3.25
  
Fracture
Gemstones of the world (2001)
  
Not Available
  
Cleavage
001
  
Not Available
  
Mohs Hardness
6
  
Not Available
  
Chemical Composition
Microcline: KAlSi3O8 Oligoclase: (Na,Ca)Al1-2Si3-2O8
  
CaF 2Michael OâDonoghue , Gems, Sixth Edition (2006)
  
Sunstone and Blue John Chemical Formula
While comparing Sunstone 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 Sunstone and Blue John chemical formula.
- Chemical formula of Sunstone- Microcline: KAlSi3O8 Oligoclase: (Na,Ca)Al1-2Si3-2O8
- Chemical formula of Blue John- CaF 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Sunstone and Blue John Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sunstone and Blue John Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sunstone and Blue John Optical Properties during the identification of gemstone. Specific gravity of Sunstone is 3.00-3.25 whereas that of Blue John is 3.00-3.25.