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Prase and Corundum Physical Properties


Corundum and Prase Physical Properties


Physical Properties

Tenacity
Not Available   
Brittle   

Solubility
Not Available   
insoluble   

Durability
Not Available   
Not Available   

Specific Gravity
2.64-2.69   
3.90-4.05   

Fracture
Gems, Sixth Edition (2006), Gems, Sixth Edition (2006)   
Uneven, Uneven, Gems, Difficult, Fibrous   

Cleavage
Not Available   
None – parting in 3 directions   

Mohs Hardness
7   
9   

Chemical Composition
SiO 2Michael O’Donoghue , Gems, Sixth Edition (2006)   
Al 2O 3Arthur Thomas , Gemstones (2009)   

Optical Properties >>
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Prase and Corundum Chemical Formula

While comparing Prase and Corundum 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 Prase and Corundum chemical formula.

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Prase and Corundum Specific Gravity

Another important criteria for qualitative analysis of gemstones is Prase and Corundum Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Prase and Corundum Optical Properties during the identification of gemstone. Specific gravity of Prase is 3.90-4.05 whereas that of Corundum is 3.90-4.05.

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