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Covellite and Iolite Physical Properties


Iolite and Covellite Physical Properties


Physical Properties

Tenacity
Flexible   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
4.6-4.76   
2.6-2.7   

Fracture
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic   
Not Available   

Cleavage
Perfect on {0001}   
3,1   

Mohs Hardness
Not Available   
7-7.5   

Chemical Composition
CuSMichael O’Donoghue , Gems, Sixth edition (2006) More from other references   
Mg2Al4Si5O18   

Optical Properties >>
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Covellite and Iolite Chemical Formula

While comparing Covellite and Iolite 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 Covellite and Iolite chemical formula.

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Covellite and Iolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Covellite and Iolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Covellite and Iolite Optical Properties during the identification of gemstone. Specific gravity of Covellite is 2.6-2.7 whereas that of Iolite is 2.6-2.7.

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Blue Gemstones


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