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Polyhalite
Polyhalite

Pyrope
Pyrope



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Polyhalite
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Pyrope

Polyhalite and Pyrope Physical Properties

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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
 
-
insoluble in water
-
3.62-3.87
Conchoidal
None
7-7.5
Mg 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Polyhalite and Pyrope Chemical Formula

While comparing Polyhalite and Pyrope 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 Pyrope chemical formula.

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Polyhalite and Pyrope Specific Gravity

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