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Leucite
Leucite

Bornite
Bornite



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Leucite
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Bornite

Leucite and Bornite Physical Properties

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Physical Properties

Tenacity

Brittle
Brittle

Solubility

-
-

Durability

-
-

Specific Gravity

2.45-2.505.06-5.08
1 7.18
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Fracture

Conchoidal
Uneven, Subconchoidal, Conchoidal

Cleavage

Poor on {110}
Poor on [111].

Mohs Hardness

5.5-63-3.25
2 10
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Chemical Composition

KAlSi 2O 6Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
Cu5FeS4

Leucite and Bornite Chemical Formula

While comparing Leucite 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 Leucite and Bornite chemical formula.

  • Chemical formula of Leucite- KAlSi 2O 6Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Bornite- Cu5FeS4

Leucite and Bornite Specific Gravity

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