Allanite and Chromite Physical Properties

Allanite

Chromite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.40-4.204.5-4.8

1 7.18

1.5 Fracture

Not Available

Uneven

1.6 Cleavage

Not Available

None, parting may develop along {111}

1.7 Mohs Hardness

Not Available5.5

2 10

1.8 Chemical Composition

Not Available

Fe++Cr2O4

Allanite and Chromite Chemical Formula

While comparing Allanite 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 Allanite and Chromite chemical formula.

Chemical formula of Chromite- Fe++Cr2O4

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Allanite and Chromite Specific Gravity

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