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Iolite and Elbaite Physical Properties


Elbaite 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   
2.90-3.10   

Fracture
Not Available   
Uneven, Conchoidal, Brittle, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle   

Cleavage
3,1   
Poor/indistinct on {1120} and {1011}   

Mohs Hardness
7-7.5   
7   

Chemical Composition
Mg2Al4Si5O18   
Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) More from other references   

Optical Properties >>
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Iolite and Elbaite Chemical Formula

While comparing Iolite and Elbaite 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 Elbaite chemical formula.

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Iolite and Elbaite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Iolite and Elbaite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Iolite and Elbaite Optical Properties during the identification of gemstone. Specific gravity of Iolite is 2.90-3.10 whereas that of Elbaite is 2.90-3.10.

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