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Bornite
Bornite

Mottramite
Mottramite



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Bornite
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Mottramite

Bornite and Mottramite Physical Properties

Physical Properties

Tenacity

Brittle
Brittle

Solubility

-
Soluble

Durability

-
-

Specific Gravity

5.06-5.085.9
1 7.18
👆🏻

Fracture

Uneven, Subconchoidal, Conchoidal
Sub-Conchoidal

Cleavage

Poor on [111].
None observed

Mohs Hardness

3-3.253
2 10
👆🏻

Chemical Composition

Cu5FeS4
PbCu(VO4)(OH)

Bornite and Mottramite Chemical Formula

While comparing Bornite and Mottramite 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 Mottramite chemical formula.

  • Chemical formula of Bornite- Cu5FeS4
  • Chemical formula of Mottramite- PbCu(VO4)(OH)

Bornite and Mottramite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Bornite and Mottramite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bornite and Mottramite Optical Properties during the identification of gemstone. Specific gravity of Bornite is 5.9 whereas that of Mottramite is 5.9.