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Covellite
Covellite

Tanzanite
Tanzanite



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Covellite
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Tanzanite

Covellite and Tanzanite 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
 
-
-
Hard
3.35
Uneven, Conchoidal
Perfect {010}, imperfect {100}
6.5-7
Ca2Al3(SiO4)3(OH)

Covellite and Tanzanite Chemical Formula

While comparing Covellite and Tanzanite 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 Tanzanite chemical formula.

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Covellite and Tanzanite Specific Gravity

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