Bornite and Nephrite Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
5.06-5.08
  
2.90-3.10
  
Fracture
Uneven, Subconchoidal, Conchoidal, Brittle
  
Splintery, Granular, Splintery, Granular, Gemstones (2009)
  
Cleavage
Poor on [111].
  
Not Available
  
Mohs Hardness
3-3.25
  
6-6.5
  
Chemical Composition
Cu5FeS4
  
Ca 2(Mg,Fe) 5(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references
  
Bornite and Nephrite Chemical Formula
While comparing Bornite and Nephrite 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 Nephrite chemical formula.
- Chemical formula of Bornite- Cu5FeS4
- Chemical formula of Nephrite- Ca 2(Mg,Fe) 5(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references
Bornite and Nephrite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Bornite and Nephrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bornite and Nephrite Optical Properties during the identification of gemstone. Specific gravity of Bornite is 2.90-3.10 whereas that of Nephrite is 2.90-3.10.