Blue John and Meionite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.00-3.25
  
2.78
  
Fracture
Not Available
  
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
  
Cleavage
Not Available
  
{???} Distinct, {???} Indistinct
  
Mohs Hardness
Not Available
  
5-6
  
Chemical Composition
CaF 2Michael OâDonoghue , Gems, Sixth Edition (2006)
  
3CaAl 2Si 2O 8 · CaCO 3Anthony et al , Handbook of mineralogy (2001)
  
Blue John and Meionite Chemical Formula
While comparing Blue John and Meionite 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 Meionite chemical formula.
- Chemical formula of Blue John- CaF 2Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Meionite- 3CaAl 2Si 2O 8 · CaCO 3Anthony et al , Handbook of mineralogy (2001)
Blue John and Meionite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Blue John and Meionite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Blue John and Meionite Optical Properties during the identification of gemstone. Specific gravity of Blue John is 2.78 whereas that of Meionite is 2.78.