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Cordierite Iolite
Cordierite Iolite

Biotite
Biotite



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Cordierite Iolite
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Biotite

Cordierite Iolite and Biotite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.56-2.66
Uneven, ConchoidalWalter Schumann
Distinct
7-7.5
Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.
 
Brittle
-
-
2.7-3.3
Uneven, Even
Perfect on the {001}
2.5-3.0
K(Mg,Fe++)3[AlSi3O10(OH,F)2

Cordierite Iolite and Biotite Chemical Formula

While comparing Cordierite Iolite and Biotite 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 Cordierite Iolite and Biotite chemical formula.

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Cordierite Iolite and Biotite Specific Gravity

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