Kutnohorite and Polyhalite Physical Properties

Kutnohorite

Polyhalite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.122.78

1 7.18

1.5 Fracture

Subconchoidal, Brittle, Conchoidal

Conchoidal, Brittle

1.6 Cleavage

Perfect on {10 1 1}

Perfect on {10 1 }; parting on {010}

1.7 Mohs Hardness

3-43.5

2 10

1.8 Chemical Composition

Not Available

Kutnohorite and Polyhalite Chemical Formula

While comparing Kutnohorite 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 Kutnohorite and Polyhalite chemical formula.

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Kutnohorite and Polyhalite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Kutnohorite and Polyhalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Kutnohorite and Polyhalite Optical Properties during the identification of gemstone. Specific gravity of Kutnohorite is 2.78 whereas that of Polyhalite is 2.78.