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Cordierite and Sard Physical Properties


Sard and Cordierite Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.57-2.66   
2.58-2.63   

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

Cleavage
Fair on {100}, poor on {001} and {010}   
Not Available   

Mohs Hardness
7-7.5   
6.5-7   

Chemical Composition
Mg2Al4Si5O18   
SiO 2Ulrich Henn and Claudio C.   

Optical Properties >>
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Cordierite and Sard Chemical Formula

While comparing Cordierite and Sard 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 and Sard chemical formula.

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Cordierite and Sard Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cordierite and Sard Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cordierite and Sard Optical Properties during the identification of gemstone. Specific gravity of Cordierite is 2.58-2.63 whereas that of Sard is 2.58-2.63.

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