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Covellite
Covellite

Atacamite
Atacamite



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Covellite
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Atacamite

Covellite and Atacamite Physical Properties

1 Physical Properties
1.1 Tenacity
Flexible
Brittle
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
4.6-4.763.745-3.776
Amber
1 7.18
1.5 Fracture
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic
Conchoidal, Conchoidal, Brittle
1.6 Cleavage
Perfect on {0001}
Perfect on {010}, fair on {101}
1.7 Mohs Hardness
Not Available3-3.5
Amber
2 10
1.8 Chemical Composition
CuSMichael O’Donoghue , Gems, Sixth edition (2006) More from other references
Cu2Cl(OH)3

Covellite and Atacamite Chemical Formula

While comparing Covellite and Atacamite 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 Atacamite chemical formula.

  • Chemical formula of Covellite- CuSMichael O’Donoghue , Gems, Sixth edition (2006) More from other references
  • Chemical formula of Atacamite- Cu2Cl(OH)3

Covellite and Atacamite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Covellite and Atacamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Covellite and Atacamite Optical Properties during the identification of gemstone. Specific gravity of Covellite is 3.745-3.776 whereas that of Atacamite is 3.745-3.776.