Polyhalite and Selenite Physical Properties

Polyhalite

Selenite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.78Not Available

1 7.18

1.5 Fracture

Conchoidal, Brittle

Not Available

1.6 Cleavage

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

Not Available

1.7 Mohs Hardness

3.52

2 10

1.8 Chemical Composition

Not Available

Polyhalite and Selenite Chemical Formula

While comparing Polyhalite and Selenite 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 Selenite chemical formula.

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Polyhalite and Selenite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Polyhalite and Selenite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Polyhalite and Selenite Optical Properties during the identification of gemstone. Specific gravity of Polyhalite is Not Available whereas that of Selenite is Not Available.