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Opal and Star Sapphire Physical Properties


Star Sapphire and Opal Physical Properties


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Opal and Star Sapphire Chemical Formula

While comparing Opal and Star Sapphire 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 Star Sapphire chemical formula.

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Opal and Star Sapphire Specific Gravity

Another important criteria for qualitative analysis of gemstones is Opal and Star Sapphire Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Opal and Star Sapphire Optical Properties during the identification of gemstone. Specific gravity of Opal is 3.90-4.05 whereas that of Star Sapphire is 3.90-4.05.

Semi Precious

Semi Precious


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