Polyhalite and Richterite Physical Properties

Polyhalite

Richterite

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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

2.78

3.0-3.5

1.5 Fracture

Conchoidal, Brittle

Uneven, Brittle

1.6 Cleavage

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

Perfect

1.7 Mohs Hardness

3.5

5-6

1.8 Chemical Composition

Not Available

Polyhalite and Richterite Chemical Formula

While comparing Polyhalite and Richterite 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 Richterite chemical formula.

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Polyhalite and Richterite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Polyhalite and Richterite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Polyhalite and Richterite Optical Properties during the identification of gemstone. Specific gravity of Polyhalite is 3.0-3.5 whereas that of Richterite is 3.0-3.5.