Erythrite and Bornite Physical Properties
Tenacity
Sectile
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.06
  
5.06-5.08
  
Fracture
Sectile Curved shavings or scrapings produced by a knife blade, (e.g. graphite).
  
Uneven, Subconchoidal, Conchoidal, Brittle
  
Cleavage
Perfect on {010}; poor on {100} and { 1 02}.
  
Poor on [111].
  
Mohs Hardness
Not Available
  
3-3.25
  
Chemical Composition
Co3(AsO4)2•8(H2O)
  
Cu5FeS4
  
Erythrite and Bornite Chemical Formula
While comparing Erythrite and Bornite 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 Erythrite and Bornite chemical formula.
- Chemical formula of Erythrite- Co3(AsO4)2•8(H2O)
- Chemical formula of Bornite- Cu5FeS4
Erythrite and Bornite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Erythrite and Bornite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Erythrite and Bornite Optical Properties during the identification of gemstone. Specific gravity of Erythrite is 5.06-5.08 whereas that of Bornite is 5.06-5.08.