Covellite and Jet lignite Physical Properties
Tenacity
Flexible
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
4.6-4.76
  
1.30-1.34
  
Fracture
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic
  
Not Available
  
Cleavage
Perfect on {0001}
  
Not Available
  
Mohs Hardness
Not Available
  
2.5
  
Chemical Composition
CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
  
Not Available
  
Covellite and Jet lignite Chemical Formula
While comparing Covellite and Jet lignite 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 Covellite and Jet lignite chemical formula.
- Chemical formula of Covellite- CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
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Covellite and Jet lignite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Covellite and Jet lignite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Covellite and Jet lignite Optical Properties during the identification of gemstone. Specific gravity of Covellite is 1.30-1.34 whereas that of Jet lignite is 1.30-1.34.