Star Ruby and Pyrophyllite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.95-4.10
  
2.65-2.90
  
Fracture
Uneven, Uneven, Gems, Sixth Edition (2006)
  
Gemstones (2009), Flexible Flexible fragments.
  
Cleavage
Not Available
  
{001} Perfect
  
Mohs Hardness
Not Available
  
Not Available
  
Chemical Composition
Al 2O 3Michael OâDonoghue , Gems, Sixth Edition (2006)
  
Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Star Ruby and Pyrophyllite Chemical Formula
While comparing Star Ruby 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 Star Ruby and Pyrophyllite chemical formula.
- Chemical formula of Star Ruby- Al 2O 3Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Pyrophyllite- Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Star Ruby and Pyrophyllite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Star Ruby and Pyrophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Star Ruby and Pyrophyllite Optical Properties during the identification of gemstone. Specific gravity of Star Ruby is 2.65-2.90 whereas that of Pyrophyllite is 2.65-2.90.