Kashmir sapphire and Rubellite Physical Properties

Kashmir sapphire and Rubellite Chemical Formula

While comparing Kashmir sapphire and Rubellite 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 Kashmir sapphire and Rubellite chemical formula.

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• Chemical formula of Rubellite- Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.

Kashmir sapphire and Rubellite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Kashmir sapphire and Rubellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Kashmir sapphire and Rubellite Optical Properties during the identification of gemstone. Specific gravity of Kashmir sapphire is 3.01-3.06 whereas that of Rubellite is 3.01-3.06.