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Opal
Opal

Chromite
Chromite



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Opal
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Chromite

Opal and Chromite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
BrittleWalter Schumann
hot salt water
-
1.98-2.25
Conchoidal
None
5-6.5
SiO2 · nH2O
 
Brittle
-
-
4.5-4.8
Uneven
None, parting may develop along {111}
5.5
Fe++Cr2O4

Opal and Chromite Chemical Formula

While comparing Opal 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 Opal and Chromite chemical formula.

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Opal and Chromite Specific Gravity

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