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Iolite
Iolite

Pyrite
Pyrite



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Iolite
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Pyrite

Iolite and Pyrite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.6-2.7
-
3,1
7-7.5
Mg2Al4Si5O18
 
Brittle
insoluble in water
-
5.00-5.20
Uneven, Conchoidal, ConchoidalWalter Schumann
Indistinct on {001}; partings on {011} and {111}
6-6.5
FeS 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Iolite and Pyrite Chemical Formula

While comparing Iolite 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 Iolite and Pyrite chemical formula.

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Iolite and Pyrite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Iolite and Pyrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Iolite Vs Pyrite during the identification of gemstone. Specific gravity of Iolite is whereas that of Pyrite is .