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Iolite and Chlorastrolite Physical Properties


Chlorastrolite 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   
3.1-3.5   

Fracture
Not Available   
Granular   

Cleavage
3,1   
Not Available   

Mohs Hardness
7-7.5   
5-6   

Chemical Composition
Mg2Al4Si5O18   
Ca 2(Mg,Fe)Al 2(SiO 4)(Si 2O 7)(OH) 2 · H 2O)Arthur Thomas , Gemstones (2009)   

Optical Properties >>
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Iolite and Chlorastrolite Chemical Formula

While comparing Iolite and Chlorastrolite 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 Chlorastrolite chemical formula.

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Iolite and Chlorastrolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Iolite and Chlorastrolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Iolite and Chlorastrolite Optical Properties during the identification of gemstone. Specific gravity of Iolite is 3.1-3.5 whereas that of Chlorastrolite is 3.1-3.5.

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