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Chromite and Opal Physical Properties


Opal and Chromite Physical Properties


Physical Properties

Tenacity
Brittle   
BrittleWalter Schumann   

Solubility
Not Available   
hot salt water   

Durability
Not Available   
Not Available   

Specific Gravity
4.5-4.8   
1.98-2.25   

Fracture
Uneven   
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Brittle   

Cleavage
None, parting may develop along {111}   
None   

Mohs Hardness
5.5   
5-6.5   

Chemical Composition
Fe++Cr2O4   
SiO2 · nH2O   

Optical Properties >>
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Chromite and Opal Chemical Formula

While comparing Chromite and Opal 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 Opal chemical formula.

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Chromite and Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Chromite and Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chromite and Opal Optical Properties during the identification of gemstone. Specific gravity of Chromite is 1.98-2.25 whereas that of Opal is 1.98-2.25.

Brown Gemstones

Brown Gemstones


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