Blue John and Baryte Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
Soluble
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.00-3.25
  
4.3-5
  
Fracture
Not Available
  
Irregular/uneven
  
Cleavage
Not Available
  
Perfect cleavage parallel to base and prism faces: {001} Perfect, {210} Perfect, {010} Imperfect
  
Mohs Hardness
Not Available
  
3-3.5
  
Chemical Composition
CaF 2Michael OâDonoghue , Gems, Sixth Edition (2006)
  
Not Available
  
Blue John and Baryte Chemical Formula
While comparing Blue John and Baryte 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 Blue John and Baryte chemical formula.
- Chemical formula of Blue John- CaF 2Michael OâDonoghue , Gems, Sixth Edition (2006)
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Blue John and Baryte Specific Gravity
Another important criteria for qualitative analysis of gemstones is Blue John and Baryte Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Blue John and Baryte Optical Properties during the identification of gemstone. Specific gravity of Blue John is 4.3-5 whereas that of Baryte is 4.3-5.