Sunstone and Pyrophyllite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.62-2.65
  
2.65-2.90
  
Fracture
Gemstones of the world (2001)
  
Gemstones (2009), Flexible Flexible fragments.
  
Cleavage
001
  
{001} Perfect
  
Mohs Hardness
6
  
Not Available
  
Chemical Composition
Microcline: KAlSi3O8 Oligoclase: (Na,Ca)Al1-2Si3-2O8
  
Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Sunstone and Pyrophyllite Chemical Formula
While comparing Sunstone 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 Sunstone and Pyrophyllite chemical formula.
- Chemical formula of Sunstone- Microcline: KAlSi3O8 Oligoclase: (Na,Ca)Al1-2Si3-2O8
- Chemical formula of Pyrophyllite- Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Sunstone and Pyrophyllite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sunstone and Pyrophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sunstone and Pyrophyllite Optical Properties during the identification of gemstone. Specific gravity of Sunstone is 2.65-2.90 whereas that of Pyrophyllite is 2.65-2.90.