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Polyhalite
Polyhalite

Uvarovite
Uvarovite



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Polyhalite
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Uvarovite

Polyhalite and Uvarovite 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
 
-
-
-
3.77
Uneven, Conchoidal
None
6.5-7.5
Ca 3Cr 2(SiO 4) 3Ulrich Henn and Claudio C.

Polyhalite and Uvarovite Chemical Formula

While comparing Polyhalite and Uvarovite 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 Uvarovite chemical formula.

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Polyhalite and Uvarovite Specific Gravity

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