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Dumortierite
Dumortierite

Covellite
Covellite



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Dumortierite
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Covellite

Dumortierite and Covellite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.26-3.41
Fibrous, ConchoidalWalter Schumann
Distinct on {100}, poor on {110}; parting on {001}
7-8.5
AlAl6O3BSi3O18
 
Flexible
-
-
4.6-4.76
-
Perfect on {0001}
-9999
CuSMichael O’Donoghue , Gems, Sixth edition (2006) More from other references

Dumortierite and Covellite Chemical Formula

While comparing Dumortierite 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 Dumortierite and Covellite chemical formula.

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Dumortierite and Covellite Specific Gravity

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