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Phenakite and Covellite Physical Properties


Covellite and Phenakite Physical Properties


Physical Properties

Tenacity
Brittle   
Flexible   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.90-2.98   
4.6-4.76   

Fracture
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001), Brittle   
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic   

Cleavage
Distinct on {11 2 0}, imperfect on {10 1 1}   
Perfect on {0001}   

Mohs Hardness
7.5-8   
Not Available   

Chemical Composition
Be 2SiO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references   
CuSMichael O’Donoghue , Gems, Sixth edition (2006) More from other references   

Optical Properties >>
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Phenakite and Covellite Chemical Formula

While comparing Phenakite and Covellite 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 Phenakite and Covellite chemical formula.

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Phenakite and Covellite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Phenakite and Covellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Phenakite and Covellite Optical Properties during the identification of gemstone. Specific gravity of Phenakite is 4.6-4.76 whereas that of Covellite is 4.6-4.76.

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