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Covellite
Covellite

Mottramite
Mottramite



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Covellite
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Mottramite

Covellite and Mottramite 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
 
Brittle
Soluble
-
5.9
Sub-Conchoidal
None observed
3
PbCu(VO4)(OH)

Covellite and Mottramite Chemical Formula

While comparing Covellite and Mottramite 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 Mottramite chemical formula.

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Covellite and Mottramite Specific Gravity

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