Cassiterite and Pyrite Physical Properties

Cassiterite

Pyrite

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Physical Properties

Tenacity

Brittle

Solubility

insoluble

insoluble in water

Durability

Specific Gravity

6.86-7.035.00-5.20

1 7.18

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Fracture

Subconchoidal, Uneven, Conchoidal, Irregular

Uneven, Conchoidal, ConchoidalWalter Schumann

Cleavage

{100} imperfect, {110} indistinct; partings on {111} or {011}

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

Mohs Hardness

6-76-6.5

2 10

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Chemical Composition

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

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

Cassiterite and Pyrite Chemical Formula

While comparing Cassiterite 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 Cassiterite and Pyrite chemical formula.

Chemical formula of Cassiterite- SnO 2Michael 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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Cassiterite and Pyrite Specific Gravity

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