Crystal Quartz and Onyx Physical Properties

Crystal Quartz and Onyx Chemical Formula

While comparing Crystal Quartz and Onyx 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 Crystal Quartz and Onyx chemical formula.

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• Chemical formula of Onyx- SiO₂

Crystal Quartz and Onyx Specific Gravity

Another important criteria for qualitative analysis of gemstones is Crystal Quartz and Onyx Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Crystal Quartz and Onyx Optical Properties during the identification of gemstone. Specific gravity of Crystal Quartz is 2.55-2.70 whereas that of Onyx is 2.55-2.70.