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Aragonite
Aragonite

Atacamite
Atacamite



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Aragonite
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Atacamite

Aragonite and Atacamite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
Dilute acid
-
2.93-2.96
Subconchoidal, Conchoidal
Distinct on {010}, imperfect {110} and {011}
3.5-4
CaCO 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
 
Brittle
-
-
3.745-3.776
Conchoidal
Perfect on {010}, fair on {101}
3-3.5
Cu2Cl(OH)3

Aragonite and Atacamite Chemical Formula

While comparing Aragonite 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 Aragonite and Atacamite chemical formula.

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Aragonite and Atacamite Specific Gravity

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