Chromite and Cuprite Physical Properties

Chromite

Cuprite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.5-4.85.85-6.15

1 7.18

1.5 Fracture

Uneven

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

1.6 Cleavage

None, parting may develop along {111}

Fair in four directions forming octahedrons

1.7 Mohs Hardness

5.53.5-4

2 10

1.8 Chemical Composition

Fe++Cr2O4

Cu 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Chromite and Cuprite Chemical Formula

While comparing Chromite and Cuprite 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 Cuprite chemical formula.

Chemical formula of Chromite- Fe++Cr2O4
Chemical formula of Cuprite- Cu 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Chromite and Cuprite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Chromite and Cuprite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chromite and Cuprite Optical Properties during the identification of gemstone. Specific gravity of Chromite is 5.85-6.15 whereas that of Cuprite is 5.85-6.15.