Verdite and Polyhalite Physical Properties

Verdite

Polyhalite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.80-3.02.78

1 7.18

1.5 Fracture

Not Available

Conchoidal, Brittle

1.6 Cleavage

{110} Good

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

1.7 Mohs Hardness

33.5

2 10

1.8 Chemical Composition

NaFeS2•2(H2O)

Not Available

Verdite and Polyhalite Chemical Formula

While comparing Verdite 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 Verdite and Polyhalite chemical formula.

Chemical formula of Verdite- NaFeS2•2(H2O)

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Verdite Vs White Opal

Verdite and Polyhalite Specific Gravity

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