Polyhalite and Vishnevite Physical Properties

Polyhalite

Vishnevite

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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

Brittle, Uneven

1.6 Cleavage

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

Perfect

1.7 Mohs Hardness

3.55-6

2 10

1.8 Chemical Composition

Not Available

Polyhalite and Vishnevite Chemical Formula

While comparing Polyhalite and Vishnevite 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 Vishnevite chemical formula.

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Polyhalite and Vishnevite Specific Gravity

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