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Iolite
Iolite

Colemanite
Colemanite



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Iolite
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Colemanite

Iolite and Colemanite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
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-
-
2.6-2.7
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3,1
7-7.5
Mg2Al4Si5O18
 
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-
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2.40-2.42
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{010} Perfect, {001} Distinct
4.5
Ca 2B 6O 11 · 5H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Iolite and Colemanite Chemical Formula

While comparing Iolite and Colemanite 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 Colemanite chemical formula.

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Iolite and Colemanite Specific Gravity

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