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Polyhalite
Polyhalite

Poldervaartite
Poldervaartite



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Polyhalite
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Poldervaartite

Polyhalite and Poldervaartite 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
 
-
-
-
2.91
-
None
-9999
(Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)

Polyhalite and Poldervaartite Chemical Formula

While comparing Polyhalite and Poldervaartite 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 Poldervaartite chemical formula.

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Polyhalite and Poldervaartite Specific Gravity

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