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Bornite
Bornite

Covellite
Covellite



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Bornite
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Bornite and Covellite Physical Properties

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1 Physical Properties
1.1 Tenacity
Brittle
Flexible
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
5.06-5.08
4.6-4.76
1.5 Fracture
Uneven, Subconchoidal, Conchoidal, Brittle
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic
1.6 Cleavage
Poor on [111].
Perfect on {0001}
1.7 Mohs Hardness
3-3.25
Not Available
1.8 Chemical Composition
Cu5FeS4
CuSMichael O’Donoghue , Gems, Sixth edition (2006) More from other references

Bornite and Covellite Chemical Formula

While comparing Bornite and Covellite 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 Covellite chemical formula.

  • Chemical formula of Bornite- Cu5FeS4
  • Chemical formula of Covellite- CuSMichael O’Donoghue , Gems, Sixth edition (2006) More from other references

Bornite and Covellite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Bornite and Covellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bornite and Covellite Optical Properties during the identification of gemstone. Specific gravity of Bornite is 4.6-4.76 whereas that of Covellite is 4.6-4.76.