Black Opal and Zircon Physical Properties

Black Opal and Zircon Chemical Formula

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

• Chemical formula of Black Opal- SiO 2 + H 2OUlrich Henn and Claudio C.
• Chemical formula of Zircon- ZrSiO₄

Black Opal and Zircon Specific Gravity

Another important criteria for qualitative analysis of gemstones is Black Opal and Zircon Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Black Opal and Zircon Optical Properties during the identification of gemstone. Specific gravity of Black Opal is 3.93-4.73 whereas that of Zircon is 3.93-4.73.