Pyrite Marcasite and Polyhalite Physical Properties

Pyrite Marcasite

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

4.9-5.22.78

1 7.18

1.5 Fracture

Not Available

Conchoidal, Brittle

1.6 Cleavage

None

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

1.7 Mohs Hardness

6-6.53.5

2 10

1.8 Chemical Composition

Not Available

Pyrite Marcasite and Polyhalite Chemical Formula

While comparing Pyrite Marcasite 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 Pyrite Marcasite and Polyhalite chemical formula.

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Pyrite Marcasite and Polyhalite Specific Gravity

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