Sapphire and Chromite Physical Properties

Sapphire

Chromite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

insoluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.95-4.034.5-4.8

1 7.18

1.5 Fracture

Uneven, Uneven, Gems, Sixth Edition (2006)

Uneven

1.6 Cleavage

None, but may exhibit parting

None, parting may develop along {111}

1.7 Mohs Hardness

95.5

2 10

1.8 Chemical Composition

Al ₂ O ₃

Fe++Cr2O4

Sapphire and Chromite Chemical Formula

While comparing Sapphire 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 Sapphire and Chromite chemical formula.

Chemical formula of Sapphire- Al ₂ O ₃
Chemical formula of Chromite- Fe++Cr2O4

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Sapphire and Chromite Specific Gravity

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