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Thulite
Thulite

Covellite
Covellite



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Thulite
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Covellite

Thulite and Covellite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
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-
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3.1
Uneven, Conchoidal
Perfect {010} imperfect {100}
6-7
Ca2Al3(SiO4)3(OH)
 
Flexible
-
-
4.6-4.76
-
Perfect on {0001}
-9999
CuSMichael O’Donoghue , Gems, Sixth edition (2006) More from other references

Thulite and Covellite Chemical Formula

While comparing Thulite 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 Thulite and Covellite chemical formula.

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Thulite and Covellite Specific Gravity

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