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Schorl
Schorl

Iolite
Iolite



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Schorl
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Iolite

Schorl and Iolite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.18-3.22
Uneven, Conchoidal
{1011} Indistinct
-9999
Na(Fe2+3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
 
-
-
-
2.6-2.7
-
3,1
7-7.5
Mg2Al4Si5O18

Schorl and Iolite Chemical Formula

While comparing Schorl and Iolite 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 Schorl and Iolite chemical formula.

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Schorl and Iolite Specific Gravity

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