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Covellite
Covellite

Nepheline
Nepheline



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Covellite
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Nepheline

Covellite and Nepheline Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Flexible
-
-
4.6-4.76
-
Perfect on {0001}
-9999
CuSMichael O’Donoghue , Gems, Sixth edition (2006) More from other references
 
-
-
-
2.55-2.65
Subconchoidal, Conchoidal
[1010] Poor
5-6
Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.

Covellite and Nepheline Chemical Formula

While comparing Covellite and Nepheline 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 Nepheline chemical formula.

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Covellite and Nepheline Specific Gravity

Another important criteria for qualitative analysis of gemstones is Covellite and Nepheline Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Covellite Vs Nepheline during the identification of gemstone. Specific gravity of Covellite is whereas that of Nepheline is .