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Bornite
Bornite

Alunite
Alunite



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Bornite
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Alunite

Bornite and Alunite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
5.06-5.08
Uneven, Subconchoidal, Conchoidal
Poor on [111].
3-3.25
Cu5FeS4
 
Brittle
Soluble
-
2.6-2.9
Conchoidal, Uneven
On {0001}, perfect
3.5-4
KAl3(SO4)2(OH)6

Bornite and Alunite Chemical Formula

While comparing Bornite and Alunite 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 Alunite chemical formula.

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Bornite and Alunite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Bornite and Alunite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bornite Vs Alunite during the identification of gemstone. Specific gravity of Bornite is whereas that of Alunite is .