Zircon and Chromite Physical Properties

Zircon

Chromite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

insoluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.93-4.734.5-4.8

1 7.18

1.5 Fracture

Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)

Uneven

1.6 Cleavage

{110} and {111}

None, parting may develop along {111}

1.7 Mohs Hardness

7.55.5

2 10

1.8 Chemical Composition

ZrSiO₄

Fe++Cr2O4

Zircon and Chromite Chemical Formula

While comparing Zircon and Chromite 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 Zircon and Chromite chemical formula.

Chemical formula of Zircon- ZrSiO₄
Chemical formula of Chromite- Fe++Cr2O4

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Zircon and Chromite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Zircon and Chromite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Zircon and Chromite Optical Properties during the identification of gemstone. Specific gravity of Zircon is 4.5-4.8 whereas that of Chromite is 4.5-4.8.