Pyrite and Aragonite Physical Properties

Pyrite

Aragonite

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Physical Properties

Tenacity

Brittle

Solubility

insoluble in water

Dilute acid

Durability

Specific Gravity

5.00-5.202.93-2.96

1 7.18

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Fracture

Uneven, Conchoidal, ConchoidalWalter Schumann

Subconchoidal, Conchoidal

Cleavage

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

Distinct on {010}, imperfect {110} and {011}

Mohs Hardness

6-6.53.5-4

2 10

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Chemical Composition

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

CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Pyrite and Aragonite Chemical Formula

While comparing Pyrite and Aragonite 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 Pyrite and Aragonite chemical formula.

Chemical formula of Pyrite- FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Aragonite- CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Pyrite and Aragonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyrite and Aragonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrite and Aragonite Optical Properties during the identification of gemstone. Specific gravity of Pyrite is 2.93-2.96 whereas that of Aragonite is 2.93-2.96.