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Poudretteite
Poudretteite

Bornite
Bornite



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Poudretteite
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Bornite

Poudretteite and Bornite Physical Properties

Physical Properties

Tenacity

Brittle
Brittle

Solubility

-
-

Durability

-
-

Specific Gravity

2.51-2.535.06-5.08
1 7.18
👆🏻

Fracture

Conchoidal, Splintery
Uneven, Subconchoidal, Conchoidal

Cleavage

None
Poor on [111].

Mohs Hardness

53-3.25
2 10
👆🏻

Chemical Composition

KNa 2B 3Si 12O 30Michael O’Donoghue , Gems, Sixth Edition (2006)
Cu5FeS4

Poudretteite and Bornite Chemical Formula

While comparing Poudretteite 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 Poudretteite and Bornite chemical formula.

  • Chemical formula of Poudretteite- KNa 2B 3Si 12O 30Michael O’Donoghue , Gems, Sixth Edition (2006)
  • Chemical formula of Bornite- Cu5FeS4

Poudretteite and Bornite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Poudretteite and Bornite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Poudretteite and Bornite Optical Properties during the identification of gemstone. Specific gravity of Poudretteite is 5.06-5.08 whereas that of Bornite is 5.06-5.08.