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Iolite and Schorl Physical Properties


Schorl 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   
3.18-3.22   

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

Cleavage
3,1   
{1011} Indistinct   

Mohs Hardness
7-7.5   
Not Available   

Chemical Composition
Mg2Al4Si5O18   
Na(Fe2+3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)   

Optical Properties >>
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Iolite and Schorl Chemical Formula

While comparing Iolite and Schorl 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 Schorl chemical formula.

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Iolite and Schorl Specific Gravity

Another important criteria for qualitative analysis of gemstones is Iolite and Schorl Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Iolite and Schorl Optical Properties during the identification of gemstone. Specific gravity of Iolite is 3.18-3.22 whereas that of Schorl is 3.18-3.22.

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