Covellite and Chromite Physical Properties

Covellite

Chromite

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1 Physical Properties

1.1 Tenacity

Flexible

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.6-4.764.5-4.8

1 7.18

1.5 Fracture

Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic

Uneven

1.6 Cleavage

Perfect on {0001}

None, parting may develop along {111}

1.7 Mohs Hardness

Not Available5.5

2 10

1.8 Chemical Composition

CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references

Fe++Cr2O4

Covellite and Chromite Chemical Formula

While comparing Covellite 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 Covellite and Chromite chemical formula.

Chemical formula of Covellite- CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Chemical formula of Chromite- Fe++Cr2O4

Compare Blue Gemstones

Covellite Vs Fluorapatite

Covellite Vs Falcons Eye

Covellite Vs Elbaite

Covellite and Chromite Specific Gravity

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