Bornite and Gahnospinel Physical Properties

Bornite

Gahnospinel

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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

5.06-5.083.65-4.55

1 7.18

1.5 Fracture

Uneven, Subconchoidal, Conchoidal, Brittle

ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

Poor on [111].

None, but may exhibit slight parting

1.7 Mohs Hardness

3-3.257.5-8

2 10

1.8 Chemical Composition

Cu5FeS4

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

Bornite and Gahnospinel Chemical Formula

While comparing Bornite and Gahnospinel 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 Gahnospinel chemical formula.

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

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Bornite and Gahnospinel Specific Gravity

Another important criteria for qualitative analysis of gemstones is Bornite and Gahnospinel Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bornite and Gahnospinel Optical Properties during the identification of gemstone. Specific gravity of Bornite is 3.65-4.55 whereas that of Gahnospinel is 3.65-4.55.