Charlesite and Pyrophyllite Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
1.79
  
2.65-2.90
  
Fracture
Irregular/uneven, Brittle, Metallic
  
Gemstones (2009), Flexible Flexible fragments.
  
Cleavage
Perfect on {10bar10}
  
{001} Perfect
  
Mohs Hardness
2.5
  
Not Available
  
Chemical Composition
Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12•26(H2O)
  
Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Charlesite and Pyrophyllite Chemical Formula
While comparing Charlesite and Pyrophyllite 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 Charlesite and Pyrophyllite chemical formula.
- Chemical formula of Charlesite- Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12•26(H2O)
- Chemical formula of Pyrophyllite- Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Charlesite and Pyrophyllite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Charlesite and Pyrophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Charlesite and Pyrophyllite Optical Properties during the identification of gemstone. Specific gravity of Charlesite is 2.65-2.90 whereas that of Pyrophyllite is 2.65-2.90.