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Iolite
Iolite

Marcasite
Marcasite



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Iolite
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Marcasite

Iolite and Marcasite 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
 
-
-
-
4.80-4.90
Uneven
{010} Indistinct
6-6.5
FeS 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Iolite and Marcasite Chemical Formula

While comparing Iolite and Marcasite 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 Marcasite chemical formula.

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Iolite and Marcasite Specific Gravity

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