Bornite and Zinnwaldite Physical Properties

Bornite

Zinnwaldite

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1 Physical Properties

1.1 Tenacity

Brittle

Elastic

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

5.06-5.082.9-3.1

1 7.18

1.5 Fracture

Uneven, Subconchoidal, Conchoidal, Brittle

Uneven

1.6 Cleavage

Poor on [111].

Perfect basal {001}

1.7 Mohs Hardness

3-3.253.5-4.0

2 10

1.8 Chemical Composition

Cu5FeS4

Not Available

Bornite and Zinnwaldite Chemical Formula

While comparing Bornite and Zinnwaldite 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 Zinnwaldite chemical formula.

Chemical formula of Bornite- Cu5FeS4

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Bornite and Zinnwaldite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Bornite and Zinnwaldite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bornite and Zinnwaldite Optical Properties during the identification of gemstone. Specific gravity of Bornite is 2.9-3.1 whereas that of Zinnwaldite is 2.9-3.1.