Opal and Common Opal Physical Properties

Opal and Common Opal Chemical Formula

While comparing Opal and Common 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 Opal and Common Opal chemical formula.

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Opal and Common Opal Specific Gravity

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