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Cordierite Iolite
Cordierite Iolite
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Andradite
Andradite
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Cordierite Iolite
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Andradite

Cordierite Iolite and Andradite 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
-
-
3.70-4.10
Conchoidal, Uneven
none
6.5-7
Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Cordierite Iolite and Andradite Chemical Formula

While comparing Cordierite Iolite and Andradite 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 Andradite chemical formula.

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Cordierite Iolite and Andradite Specific Gravity

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