Chromite and Iolite Physical Properties

Chromite

Iolite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.5-4.82.6-2.7

1 7.18

1.5 Fracture

Uneven

Not Available

1.6 Cleavage

None, parting may develop along {111}

3,1

1.7 Mohs Hardness

5.57-7.5

2 10

1.8 Chemical Composition

Fe++Cr2O4

Mg₂Al₄Si₅O₁₈

Chromite and Iolite Chemical Formula

While comparing Chromite 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 Chromite and Iolite chemical formula.

Chemical formula of Chromite- Fe++Cr2O4
Chemical formula of Iolite- Mg₂Al₄Si₅O₁₈

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Chromite and Iolite Specific Gravity

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