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Labradorite
Labradorite

Polyhalite
Polyhalite



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Labradorite
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Polyhalite

Labradorite and Polyhalite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
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
 
Brittle
Soluble
-
2.78
Conchoidal
Perfect on {10 1 }; parting on {010}
3.5
K2Ca2Mg(SO4)4·2H2O

Labradorite and Polyhalite Chemical Formula

While comparing Labradorite 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 Labradorite and Polyhalite chemical formula.

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Labradorite and Polyhalite Specific Gravity

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