Fluorite and Pyrite Physical Properties

Fluorite

Pyrite

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Physical Properties

Tenacity

Brittle

Solubility

slightly water soluble and in hot hydrochloric acid

insoluble in water

Durability

Specific Gravity

3.00-3.255.00-5.20

1 7.18

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Fracture

Subconchoidal, Uneven, ConchoidalWalter Schumann

Uneven, Conchoidal, ConchoidalWalter Schumann

Cleavage

Octahedral, perfect on {111}, parting on {011}

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

Mohs Hardness

46-6.5

2 10

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Chemical Composition

CaF₂

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

Fluorite and Pyrite Chemical Formula

While comparing Fluorite 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 Fluorite and Pyrite chemical formula.

Chemical formula of Fluorite- CaF₂
Chemical formula of Pyrite- FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Fluorite and Pyrite Specific Gravity

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