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Polyhalite
Polyhalite

Atacamite
Atacamite



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Polyhalite
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Atacamite

Polyhalite and Atacamite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
Soluble
-
2.78
Conchoidal
Perfect on {10 1 }; parting on {010}
3.5
K2Ca2Mg(SO4)4·2H2O
 
Brittle
-
-
3.745-3.776
Conchoidal
Perfect on {010}, fair on {101}
3-3.5
Cu2Cl(OH)3

Polyhalite and Atacamite Chemical Formula

While comparing Polyhalite 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 Polyhalite and Atacamite chemical formula.

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Polyhalite and Atacamite Specific Gravity

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