Bornite and Pleonaste Physical Properties

Bornite

Pleonaste

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

5.06-5.083.80

1 7.18

1.5 Fracture

Uneven, Subconchoidal, Conchoidal, Brittle

Not Available

1.6 Cleavage

Poor on [111].

Not Available

1.7 Mohs Hardness

3-3.258

2 10

1.8 Chemical Composition

Cu5FeS4

(Mg,Fe)Al 2O 4Gemdat.org , Management Team (2012)

Bornite and Pleonaste Chemical Formula

While comparing Bornite and Pleonaste 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 Pleonaste chemical formula.

Chemical formula of Bornite- Cu5FeS4
Chemical formula of Pleonaste- (Mg,Fe)Al 2O 4Gemdat.org , Management Team (2012)

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Bornite and Pleonaste Specific Gravity

Another important criteria for qualitative analysis of gemstones is Bornite and Pleonaste Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bornite and Pleonaste Optical Properties during the identification of gemstone. Specific gravity of Bornite is 3.80 whereas that of Pleonaste is 3.80.