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Verdelite
Verdelite

Polyhalite
Polyhalite



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Verdelite
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Polyhalite

Verdelite and Polyhalite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.90-3.40
Conchoidal
Indiscernible
7-7.5
Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.
 
Brittle
Soluble
-
2.78
Conchoidal
Perfect on {10 1 }; parting on {010}
3.5
K2Ca2Mg(SO4)4·2H2O

Verdelite and Polyhalite Chemical Formula

While comparing Verdelite 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 Verdelite and Polyhalite chemical formula.

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Verdelite and Polyhalite Specific Gravity

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