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Covellite
Covellite

Apophyllite
Apophyllite



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Covellite
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Apophyllite

Covellite and Apophyllite 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
 
-
-
-
2.30-2.50
Uneven
Perfect on (001)
4.5-5
KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.

Covellite and Apophyllite Chemical Formula

While comparing Covellite and Apophyllite 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 Apophyllite chemical formula.

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Covellite and Apophyllite Specific Gravity

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