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Polyhalite
Polyhalite

Labradorite
Labradorite



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Polyhalite
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Labradorite

Polyhalite and Labradorite 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
 
-
-
-
2.69-2.72
Uneven, Conchoidal
Perfect on {001}, less perfect on {010}, intersecting at near 90°; distinct on {110}
6-6.5
(Na,Ca)1-2Si3-2O8

Polyhalite and Labradorite Chemical Formula

While comparing Polyhalite and Labradorite 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 Labradorite chemical formula.

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Polyhalite and Labradorite Specific Gravity

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