Pyrite and Axinite Physical Properties

Pyrite

Axinite

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Physical Properties

Tenacity

Brittle

Solubility

insoluble in water

Durability

Specific Gravity

5.00-5.203.26-3.36

1 7.18

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Fracture

Uneven, Conchoidal, ConchoidalWalter Schumann

Conchoidal

Cleavage

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

Good on {100}

Mohs Hardness

6-6.56.5-7

2 10

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Chemical Composition

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

(Ca,Fe,Mn,Mg) 3Al 2BSi 4O 15(OH)Walter Schumann , Gemstones of the world (2001) More from other references

Pyrite and Axinite Chemical Formula

While comparing Pyrite and Axinite 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 Axinite chemical formula.

Chemical formula of Pyrite- FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Axinite- (Ca,Fe,Mn,Mg) 3Al 2BSi 4O 15(OH)Walter Schumann , Gemstones of the world (2001) More from other references

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Pyrite and Axinite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyrite and Axinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrite and Axinite Optical Properties during the identification of gemstone. Specific gravity of Pyrite is 3.26-3.36 whereas that of Axinite is 3.26-3.36.