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Realgar and Cordierite Physical Properties


Cordierite and Realgar Physical Properties


Physical Properties

Tenacity
Not Available   
Brittle   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.56   
2.57-2.66   

Fracture
(e.g. graphite).   
Subconchoidal, Conchoidal, Brittle   

Cleavage
{010} Good   
Fair on {100}, poor on {001} and {010}   

Mohs Hardness
Not Available   
7-7.5   

Chemical Composition
AsSMichael O’Donoghue , Gems, Sixth Edition (2006)   
Mg2Al4Si5O18   

Optical Properties >>
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Realgar and Cordierite Chemical Formula

While comparing Realgar 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 Realgar and Cordierite chemical formula.

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Realgar and Cordierite Specific Gravity

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

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