Prase and Jet lignite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.64-2.69
  
1.30-1.34
  
Fracture
Gems, Sixth Edition (2006), Gems, Sixth Edition (2006)
  
Not Available
  
Cleavage
Not Available
  
Not Available
  
Mohs Hardness
7
  
2.5
  
Chemical Composition
SiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
  
Not Available
  
Prase and Jet lignite Chemical Formula
While comparing Prase and Jet lignite 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 Prase and Jet lignite chemical formula.
- Chemical formula of Prase- SiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
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Prase and Jet lignite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Prase and Jet lignite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Prase and Jet lignite Optical Properties during the identification of gemstone. Specific gravity of Prase is 1.30-1.34 whereas that of Jet lignite is 1.30-1.34.