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Chromite
Chromite

Sillimanite
Sillimanite



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Chromite
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Sillimanite

Chromite and Sillimanite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
4.5-4.8
Uneven
None, parting may develop along {111}
5.5
Fe++Cr2O4
 
Tough
-
-
3.20-3.26
Splintery
{010} perfect
6-7.5
Al 2SiO 5Michael O’Donoghue , Gems, Sixth Edition (2006)

Chromite and Sillimanite Chemical Formula

While comparing Chromite and Sillimanite 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 Sillimanite chemical formula.

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Chromite and Sillimanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Chromite and Sillimanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chromite Vs Sillimanite during the identification of gemstone. Specific gravity of Chromite is whereas that of Sillimanite is .