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Polyhalite
Polyhalite

Elbaite
Elbaite



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Polyhalite
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Elbaite

Polyhalite and Elbaite 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
 
-
-
-
2.90-3.10
Uneven, Conchoidal
Poor/indistinct on {1120} and {1011}
7
Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) More from other references

Polyhalite and Elbaite Chemical Formula

While comparing Polyhalite and Elbaite 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 Elbaite chemical formula.

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Polyhalite and Elbaite Specific Gravity

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