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Atacamite
Atacamite

Poudretteite
Poudretteite



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Atacamite
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Poudretteite

Atacamite and Poudretteite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
3.745-3.776
Conchoidal
Perfect on {010}, fair on {101}
3-3.5
Cu2Cl(OH)3
 
Brittle
-
-
2.51-2.53
Conchoidal, Splintery
None
5
KNa 2B 3Si 12O 30Michael O’Donoghue , Gems, Sixth Edition (2006)

Atacamite and Poudretteite Chemical Formula

While comparing Atacamite and Poudretteite 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 Atacamite and Poudretteite chemical formula.

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Atacamite and Poudretteite Specific Gravity

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