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Covellite and Precious Opal Physical Properties


Precious Opal 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   
1.98-2.25   

Fracture
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic   
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references   

Cleavage
Perfect on {0001}   
Not Available   

Mohs Hardness
Not Available   
5-6.5   

Chemical Composition
CuSMichael O’Donoghue , Gems, Sixth edition (2006) More from other references   
SiO 2 · nH 2OGemdat.org , Management Team (2012)   

Optical Properties >>
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Covellite and Precious Opal Chemical Formula

While comparing Covellite and Precious Opal 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 Precious Opal chemical formula.

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Covellite and Precious Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Covellite and Precious Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Covellite and Precious Opal Optical Properties during the identification of gemstone. Specific gravity of Covellite is 1.98-2.25 whereas that of Precious Opal is 1.98-2.25.

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