Chromite and Bustamite Physical Properties

Chromite

Bustamite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

Partly soluble in HCl.

1.3 Durability

Not Available

1.4 Specific Gravity

4.5-4.83.32-3.43

1 7.18

1.5 Fracture

Uneven

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

None, parting may develop along {111}

{100} perfect; {110} and {1 1 0} good; {010} poor

1.7 Mohs Hardness

5.55.5-6

2 10

1.8 Chemical Composition

Fe++Cr2O4

(Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Chromite and Bustamite Chemical Formula

While comparing Chromite and Bustamite 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 Bustamite chemical formula.

Chemical formula of Chromite- Fe++Cr2O4
Chemical formula of Bustamite- (Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Chromite and Bustamite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Chromite and Bustamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chromite and Bustamite Optical Properties during the identification of gemstone. Specific gravity of Chromite is 3.32-3.43 whereas that of Bustamite is 3.32-3.43.