Blue John and Opal Physical Properties

Blue John and Opal Chemical Formula

While comparing Blue John 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 Blue John and Opal chemical formula.

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Blue John and Opal Specific Gravity

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