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Covellite and Obsidian Physical Properties


Obsidian 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   
2.35-2.60   

Fracture
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic   
Conchoidal, ConchoidalWalter Schumann, Conchoidal   

Cleavage
Perfect on {0001}   
Not Available   

Mohs Hardness
Not Available   
5-5.5   

Chemical Composition
CuSMichael O’Donoghue , Gems, Sixth edition (2006) More from other references   
Not Available   

Optical Properties >>
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Covellite and Obsidian Chemical Formula

While comparing Covellite and Obsidian 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 Obsidian chemical formula.

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Covellite and Obsidian Specific Gravity

Another important criteria for qualitative analysis of gemstones is Covellite and Obsidian Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Covellite and Obsidian Optical Properties during the identification of gemstone. Specific gravity of Covellite is 2.35-2.60 whereas that of Obsidian is 2.35-2.60.

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