Cassiterite and Bornite Physical Properties

Cassiterite

Bornite

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Physical Properties

Tenacity

Brittle

Solubility

insoluble

Durability

Specific Gravity

6.86-7.035.06-5.08

1 7.18

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Fracture

Subconchoidal, Uneven, Conchoidal, Irregular

Uneven, Subconchoidal, Conchoidal

Cleavage

{100} imperfect, {110} indistinct; partings on {111} or {011}

Poor on [111].

Mohs Hardness

6-73-3.25

2 10

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Chemical Composition

SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Cu5FeS4

Cassiterite and Bornite Chemical Formula

While comparing Cassiterite and Bornite 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 Cassiterite and Bornite chemical formula.

Chemical formula of Cassiterite- SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Bornite- Cu5FeS4

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Cassiterite and Bornite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cassiterite and Bornite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cassiterite and Bornite Optical Properties during the identification of gemstone. Specific gravity of Cassiterite is 5.06-5.08 whereas that of Bornite is 5.06-5.08.