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Oligoclase and Cordierite Physical Properties


Cordierite and Oligoclase Physical Properties


Physical Properties

Tenacity
Not Available   
Brittle   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.62-2.67   
2.57-2.66   

Fracture
Gems, Sixth Edition (2006), Gems, Sixth Edition (2006), Uneven   
Subconchoidal, Conchoidal, Brittle   

Cleavage
From the Greek, oligos and kasein, little cleavage.   
Fair on {100}, poor on {001} and {010}   

Mohs Hardness
6-6.5   
7-7.5   

Chemical Composition
Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael O’Donoghue , Gems, Sixth Edition (2006)   
Mg2Al4Si5O18   

Optical Properties >>
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Oligoclase and Cordierite Chemical Formula

While comparing Oligoclase 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 Oligoclase and Cordierite chemical formula.

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Oligoclase and Cordierite Specific Gravity

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

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