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Cordierite and Emerald Physical Properties


Emerald and Cordierite Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Hard   

Specific Gravity
2.57-2.66   
2.67-2.78   

Fracture
Subconchoidal, Conchoidal, Brittle   
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)   

Cleavage
Fair on {100}, poor on {001} and {010}   
Imperfect on the [0001]   

Mohs Hardness
7-7.5   
7.5-8   

Chemical Composition
Mg2Al4Si5O18   
Be3Al2SiO6   

Optical Properties >>
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Cordierite and Emerald Chemical Formula

While comparing Cordierite and Emerald 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 Emerald chemical formula.

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Cordierite and Emerald Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cordierite and Emerald Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cordierite and Emerald Optical Properties during the identification of gemstone. Specific gravity of Cordierite is 2.67-2.78 whereas that of Emerald is 2.67-2.78.

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