Spinel and Black Opal Physical Properties

Spinel and Black Opal Chemical Formula

While comparing Spinel and Black 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 Spinel and Black Opal chemical formula.

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Spinel and Black Opal Specific Gravity

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