Bornite and Anorthite Physical Properties
Tenacity
Brittle
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
5.06-5.08
  
2.77
  
Fracture
Uneven, Subconchoidal, Conchoidal, Brittle
  
Uneven, Uneven, Gems, Sixth Edition (2006)
  
Cleavage
Poor on [111].
  
Perfect [001] good [010] poor [110]
  
Mohs Hardness
3-3.25
  
6-6.5
  
Chemical Composition
Cu5FeS4
  
CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
  
Bornite and Anorthite Chemical Formula
While comparing Bornite and Anorthite 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 Bornite and Anorthite chemical formula.
- Chemical formula of Bornite- Cu5FeS4
- Chemical formula of Anorthite- CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Bornite and Anorthite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Bornite and Anorthite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bornite and Anorthite Optical Properties during the identification of gemstone. Specific gravity of Bornite is 2.77 whereas that of Anorthite is 2.77.