Scheelite and Pyrite Physical Properties

Scheelite

Pyrite

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Physical Properties

Tenacity

Brittle

Solubility

insoluble in water

Durability

Specific Gravity

5.9-6.35.00-5.20

1 7.18

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Fracture

Conchoidal, Uneven

Uneven, Conchoidal, ConchoidalWalter Schumann

Cleavage

On {101}, distinct; on {112}, interrupted; on {001}, indistinct

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

Mohs Hardness

4.5-56-6.5

2 10

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Chemical Composition

CaWO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Scheelite and Pyrite Chemical Formula

While comparing Scheelite 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 Scheelite and Pyrite chemical formula.

Chemical formula of Scheelite- CaWO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Pyrite- FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Scheelite and Pyrite Specific Gravity

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