Austinite and Pyrite Physical Properties

Austinite

Pyrite

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Physical Properties

Tenacity

Brittle

Solubility

Easily soluble in cold dilute HCl

insoluble in water

Durability

Specific Gravity

4.125.00-5.20

1 7.18

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Fracture

Uneven

Uneven, Conchoidal, ConchoidalWalter Schumann

Cleavage

Good in two directions parallel to the prism faces {110}

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

Mohs Hardness

4-4.56-6.5

2 10

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Chemical Composition

CaZn(AsO4)(OH)

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

Austinite and Pyrite Chemical Formula

While comparing Austinite 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 Austinite and Pyrite chemical formula.

Chemical formula of Austinite- CaZn(AsO4)(OH)
Chemical formula of Pyrite- FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Austinite Vs Gaspeite

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Austinite and Pyrite Specific Gravity

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