Pyrite Marcasite and Iolite Physical Properties

Pyrite Marcasite

Iolite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.9-5.22.6-2.7

1 7.18

1.5 Fracture

Not Available

1.6 Cleavage

None

3,1

1.7 Mohs Hardness

6-6.57-7.5

2 10

1.8 Chemical Composition

Not Available

Mg₂Al₄Si₅O₁₈

Pyrite Marcasite and Iolite Chemical Formula

While comparing Pyrite Marcasite and Iolite 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 Iolite chemical formula.

Chemical formula of Iolite- Mg₂Al₄Si₅O₁₈

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Pyrite Marcasite and Iolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyrite Marcasite and Iolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrite Marcasite and Iolite Optical Properties during the identification of gemstone. Specific gravity of Pyrite Marcasite is 2.6-2.7 whereas that of Iolite is 2.6-2.7.