Bornite and Pyrophyllite Physical Properties

Bornite

Pyrophyllite

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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

5.06-5.082.65-2.90

1 7.18

1.5 Fracture

Uneven, Subconchoidal, Conchoidal, Brittle

Gemstones (2009), Flexible Flexible fragments.

1.6 Cleavage

Poor on [111].

{001} Perfect

1.7 Mohs Hardness

3-3.25Not Available

2 10

1.8 Chemical Composition

Cu5FeS4

Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Bornite and Pyrophyllite Chemical Formula

While comparing Bornite and Pyrophyllite 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 Pyrophyllite chemical formula.

Chemical formula of Bornite- Cu5FeS4
Chemical formula of Pyrophyllite- Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Bornite and Pyrophyllite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Bornite and Pyrophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bornite and Pyrophyllite Optical Properties during the identification of gemstone. Specific gravity of Bornite is 2.65-2.90 whereas that of Pyrophyllite is 2.65-2.90.