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Spinel and Chromite Physical Properties


Chromite and Spinel Physical Properties


Physical Properties

Tenacity
Not Available   
Brittle   

Solubility
none   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.64-3.66   
4.5-4.8   

Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)   
Uneven   

Cleavage
None, but may exhibit slight parting   
None, parting may develop along {111}   

Mohs Hardness
8   
5.5   

Chemical Composition
MgAl2O4   
Fe++Cr2O4   

Optical Properties >>
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Spinel and Chromite Chemical Formula

While comparing Spinel 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 Spinel and Chromite chemical formula.

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Spinel and Chromite Specific Gravity

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

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