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Piemontite
Piemontite

Atacamite
Atacamite



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Piemontite
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Atacamite

Piemontite and Atacamite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
-9999
Uneven, Splintery
[001] good, [100] distinct
6-6.5
Ca2Al3(SiO4)(Si2O7)O(OH)
 
Brittle
-
-
3.745-3.776
Conchoidal
Perfect on {010}, fair on {101}
3-3.5
Cu2Cl(OH)3

Piemontite and Atacamite Chemical Formula

While comparing Piemontite 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 Piemontite and Atacamite chemical formula.

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Piemontite and Atacamite Specific Gravity

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