Pyrite and Fluorite Physical Properties

Pyrite

Fluorite

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Physical Properties

Tenacity

Brittle

Solubility

insoluble in water

slightly water soluble and in hot hydrochloric acid

Durability

Specific Gravity

5.00-5.203.00-3.25

1 7.18

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Fracture

Uneven, Conchoidal, ConchoidalWalter Schumann

Subconchoidal, Uneven, ConchoidalWalter Schumann

Cleavage

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

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

Mohs Hardness

6-6.54

2 10

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Chemical Composition

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

CaF₂

Pyrite and Fluorite Chemical Formula

While comparing Pyrite and Fluorite 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 Fluorite chemical formula.

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

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Pyrite and Fluorite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyrite and Fluorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrite and Fluorite Optical Properties during the identification of gemstone. Specific gravity of Pyrite is 3.00-3.25 whereas that of Fluorite is 3.00-3.25.