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Pyrophyllite
Pyrophyllite

Cordierite Iolite
Cordierite Iolite



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Pyrophyllite
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Cordierite Iolite

Pyrophyllite and Cordierite Iolite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
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-
-
2.65-2.90
-
{001} Perfect
-9999
Al 2Si 4O 10(OH) 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
 
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-
-
2.56-2.66
Uneven, ConchoidalWalter Schumann
Distinct
7-7.5
Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.

Pyrophyllite and Cordierite Iolite Chemical Formula

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

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Pyrophyllite and Cordierite Iolite Specific Gravity

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