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Pyrope and Cordierite Physical Properties


Cordierite and Pyrope Physical Properties


Physical Properties

Tenacity
Not Available   
Brittle   

Solubility
insoluble in water   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.62-3.87   
2.57-2.66   

Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle   
Subconchoidal, Conchoidal, Brittle   

Cleavage
None   
Fair on {100}, poor on {001} and {010}   

Mohs Hardness
7-7.5   
7-7.5   

Chemical Composition
Mg 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)   
Mg2Al4Si5O18   

Optical Properties >>
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Pyrope and Cordierite Chemical Formula

While comparing Pyrope and Cordierite 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 Pyrope and Cordierite chemical formula.

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Pyrope and Cordierite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyrope and Cordierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrope and Cordierite Optical Properties during the identification of gemstone. Specific gravity of Pyrope is 2.57-2.66 whereas that of Cordierite is 2.57-2.66.

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Red Gemstones


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