Chromite and Brookite Physical Properties

Chromite

Brookite

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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

4.5-4.83.87-4.14

1 7.18

1.5 Fracture

Uneven

Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle

1.6 Cleavage

None, parting may develop along {111}

Poor on {120}, in traces on {001}

1.7 Mohs Hardness

5.55.5-6

2 10

1.8 Chemical Composition

Fe++Cr2O4

TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Chromite and Brookite Chemical Formula

While comparing Chromite and Brookite 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 Brookite chemical formula.

Chemical formula of Chromite- Fe++Cr2O4
Chemical formula of Brookite- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Chromite and Brookite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Chromite and Brookite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chromite and Brookite Optical Properties during the identification of gemstone. Specific gravity of Chromite is 3.87-4.14 whereas that of Brookite is 3.87-4.14.