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Charoite
Charoite

Polyhalite
Polyhalite



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Charoite
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Polyhalite

Charoite and Polyhalite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.54-2.78
Conchoidal
Good in three directions
5-6
K(Ca,Na) 2Si 4O 10(OH,F) · H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references
 
Brittle
Soluble
-
2.78
Conchoidal
Perfect on {10 1 }; parting on {010}
3.5
K2Ca2Mg(SO4)4·2H2O

Charoite and Polyhalite Chemical Formula

While comparing Charoite and Polyhalite 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 Charoite and Polyhalite chemical formula.

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Charoite and Polyhalite Specific Gravity

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