Augelite and Pyrite Physical Properties

Augelite

Pyrite

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Physical Properties

Tenacity

Brittle

Solubility

insoluble in water

Durability

Specific Gravity

2.70-2.755.00-5.20

1 7.18

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Fracture

Conchoidal

Uneven, Conchoidal, ConchoidalWalter Schumann

Cleavage

From the Greek for luster, for its pearly luster on the cleavage.

Indistinct on {001}; partings on {011} and {111}

Mohs Hardness

4.5-56-6.5

2 10

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Chemical Composition

Al 2(PO 4)(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)

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

Augelite and Pyrite Chemical Formula

While comparing Augelite and Pyrite 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 Augelite and Pyrite chemical formula.

Chemical formula of Augelite- Al 2(PO 4)(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Pyrite- FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Augelite and Pyrite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Augelite and Pyrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Augelite and Pyrite Optical Properties during the identification of gemstone. Specific gravity of Augelite is 5.00-5.20 whereas that of Pyrite is 5.00-5.20.