Chromite and Cobaltite Physical Properties

Chromite

Cobaltite

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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

4.5-4.86.3

1 7.18

1.5 Fracture

Uneven

UnevenAnthony et al, Handbook of mineralogy (2001) More from other references, UnevenAnthony et al, Handbook of mineralogy (2001) More from other references, Brittle, Metallic

1.6 Cleavage

None, parting may develop along {111}

{100} Good, {010} Good, {001} Good

1.7 Mohs Hardness

5.55.5

2 10

1.8 Chemical Composition

Fe++Cr2O4

CoAsSAnthony et al , Handbook of mineralogy (2001)

Chromite and Cobaltite Chemical Formula

While comparing Chromite and Cobaltite 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 Cobaltite chemical formula.

Chemical formula of Chromite- Fe++Cr2O4
Chemical formula of Cobaltite- CoAsSAnthony et al , Handbook of mineralogy (2001)

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Chromite and Cobaltite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Chromite and Cobaltite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chromite and Cobaltite Optical Properties during the identification of gemstone. Specific gravity of Chromite is 6.3 whereas that of Cobaltite is 6.3.