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Polyhalite
Polyhalite

Dumortierite
Dumortierite



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Polyhalite
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Dumortierite

Polyhalite and Dumortierite 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
 
-
-
-
3.26-3.41
Fibrous, ConchoidalWalter Schumann
Distinct on {100}, poor on {110}; parting on {001}
7-8.5
AlAl6O3BSi3O18

Polyhalite and Dumortierite Chemical Formula

While comparing Polyhalite and Dumortierite 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 Dumortierite chemical formula.

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Polyhalite and Dumortierite Specific Gravity

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