Pyrophyllite and Jeremejevite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.65-2.90
  
3.28-3.31
  
Fracture
Gemstones (2009), Flexible Flexible fragments.
  
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle
  
Cleavage
{001} Perfect
  
None observed
  
Mohs Hardness
Not Available
  
6.5-7.5
  
Chemical Composition
Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Al 6B 5O 15(F,OH) 3Ulrich Henn and Claudio C.
  
Pyrophyllite and Jeremejevite Chemical Formula
While comparing Pyrophyllite and Jeremejevite 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 Jeremejevite chemical formula.
- Chemical formula of Pyrophyllite- Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Jeremejevite- Al 6B 5O 15(F,OH) 3Ulrich Henn and Claudio C.
Pyrophyllite and Jeremejevite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pyrophyllite and Jeremejevite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrophyllite and Jeremejevite Optical Properties during the identification of gemstone. Specific gravity of Pyrophyllite is 3.28-3.31 whereas that of Jeremejevite is 3.28-3.31.