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Andesine and Corundum Physical Properties


Corundum and Andesine Physical Properties


Physical Properties

Tenacity
Brittle   
Brittle   

Solubility
Not Available   
insoluble   

Durability
Not Available   
Not Available   

Specific Gravity
2.65-2.69   
3.90-4.05   

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

Cleavage
Perfect on {001}, good on {010}   
None – parting in 3 directions   

Mohs Hardness
6-6.5   
9   

Chemical Composition
(Na,Ca)Al1-2Si3-2O8   
Al 2O 3Arthur Thomas , Gemstones (2009)   

Optical Properties >>
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Andesine and Corundum Chemical Formula

While comparing Andesine 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 Andesine and Corundum chemical formula.

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Andesine and Corundum Specific Gravity

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

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