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Iolite
Iolite

Pargasite
Pargasite



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Iolite
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Pargasite

Iolite and Pargasite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
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-
-
2.6-2.7
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3,1
7-7.5
Mg2Al4Si5O18
 
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-
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3.04-3.26
Splintery, Uneven
{110} perfect
5-6
NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael O’Donoghue , Gems, Sixth Edition (2006)

Iolite and Pargasite Chemical Formula

While comparing Iolite and Pargasite 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 Pargasite chemical formula.

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Iolite and Pargasite Specific Gravity

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