Chromite and Star Sapphire Physical Properties

Chromite

Star Sapphire

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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

4.5-4.83.90-4.05

1 7.18

1.5 Fracture

Uneven

Not Available

1.6 Cleavage

None, parting may develop along {111}

Not Available

1.7 Mohs Hardness

5.5Not Available

2 10

1.8 Chemical Composition

Fe++Cr2O4

Al 2O 3Ulrich Henn and Claudio C.

Chromite and Star Sapphire Chemical Formula

While comparing Chromite and Star Sapphire 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 Star Sapphire chemical formula.

Chemical formula of Chromite- Fe++Cr2O4
Chemical formula of Star Sapphire- Al 2O 3Ulrich Henn and Claudio C.

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Chromite and Star Sapphire Specific Gravity

Another important criteria for qualitative analysis of gemstones is Chromite and Star Sapphire Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chromite and Star Sapphire Optical Properties during the identification of gemstone. Specific gravity of Chromite is 3.90-4.05 whereas that of Star Sapphire is 3.90-4.05.