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Bornite
Bornite

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Bustamite



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Bornite and Bustamite Physical Properties

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1 Physical Properties
1.1 Tenacity
Brittle
Not Available
1.2 Solubility
Not Available
Partly soluble in HCl.
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
5.06-5.08
3.32-3.43
1.5 Fracture
Uneven, Subconchoidal, Conchoidal, Brittle
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
1.6 Cleavage
Poor on [111].
{100} perfect; {110} and {1 1 0} good; {010} poor
1.7 Mohs Hardness
3-3.25
5.5-6
1.8 Chemical Composition
Cu5FeS4
(Ca,Mn2+ )Si 3O 9Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Bornite and Bustamite Chemical Formula

While comparing Bornite and Bustamite 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 Bustamite chemical formula.

  • Chemical formula of Bornite- Cu5FeS4
  • Chemical formula of Bustamite- (Ca,Mn2+ )Si 3O 9Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Bornite and Bustamite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Bornite and Bustamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bornite and Bustamite Optical Properties during the identification of gemstone. Specific gravity of Bornite is 3.32-3.43 whereas that of Bustamite is 3.32-3.43.