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Mellite
Mellite

Covellite
Covellite



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Mellite
X
Covellite

Mellite and Covellite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
1.58-1.60
Conchoidal
{011} Imperfect
2
Al 2(Cl 2O 12) · 18H 2OUlrich Henn and Claudio C.
 
Flexible
-
-
4.6-4.76
-
Perfect on {0001}
-9999
CuSMichael O’Donoghue , Gems, Sixth edition (2006) More from other references

Mellite and Covellite Chemical Formula

While comparing Mellite 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 Mellite and Covellite chemical formula.

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Mellite and Covellite Specific Gravity

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