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Andradite
Andradite
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Cordierite Iolite
Cordierite Iolite
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Andradite
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Cordierite Iolite

Andradite and Cordierite Iolite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
3.70-4.10
Conchoidal, Uneven
none
6.5-7
Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
 
-
-
-
2.56-2.66
Uneven, ConchoidalWalter Schumann
Distinct
7-7.5
Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.

Andradite and Cordierite Iolite Chemical Formula

While comparing Andradite 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 Andradite and Cordierite Iolite chemical formula.

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Andradite and Cordierite Iolite Specific Gravity

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