Variscite and Pyrite Physical Properties

Variscite

Pyrite

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Physical Properties

Tenacity

Brittle

Solubility

insoluble in water

Durability

Specific Gravity

2.42-2.585.00-5.20

1 7.18

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Fracture

Conchoidal, Splintery, ConchoidalWalter Schumann

Uneven, Conchoidal, ConchoidalWalter Schumann

Cleavage

[010] perfect

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

Mohs Hardness

4-56-6.5

2 10

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Chemical Composition

AlPO₄ · 2(H₂O)

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

Variscite and Pyrite Chemical Formula

While comparing Variscite 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 Variscite and Pyrite chemical formula.

Chemical formula of Variscite- AlPO₄ · 2(H₂O)
Chemical formula of Pyrite- FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Variscite and Pyrite Specific Gravity

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