Pyrophyllite and Jet lignite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.65-2.90
  
1.30-1.34
  
Fracture
Gemstones (2009), Flexible Flexible fragments.
  
Not Available
  
Cleavage
{001} Perfect
  
Not Available
  
Mohs Hardness
Not Available
  
2.5
  
Chemical Composition
Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Not Available
  
Pyrophyllite and Jet lignite Chemical Formula
While comparing Pyrophyllite 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 Pyrophyllite and Jet lignite chemical formula.
- Chemical formula of Pyrophyllite- Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
>
Pyrophyllite and Jet lignite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pyrophyllite and Jet lignite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrophyllite and Jet lignite Optical Properties during the identification of gemstone. Specific gravity of Pyrophyllite is 1.30-1.34 whereas that of Jet lignite is 1.30-1.34.