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Iolite and Pargasite Physical Properties


Pargasite and Iolite Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.6-2.7   
3.04-3.26   

Fracture
Not Available   
Splintery, Brittle, Uneven   

Cleavage
3,1   
{110} perfect   

Mohs Hardness
7-7.5   
5-6   

Chemical Composition
Mg2Al4Si5O18   
NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael O’Donoghue , Gems, Sixth Edition (2006)   

Optical Properties >>
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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 and Pargasite Optical Properties during the identification of gemstone. Specific gravity of Iolite is 3.04-3.26 whereas that of Pargasite is 3.04-3.26.

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