Common Opal and Meionite Physical Properties

Common Opal and Meionite Chemical Formula

While comparing Common Opal and Meionite 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 Common Opal and Meionite chemical formula.

• Chemical formula of Common Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
• Chemical formula of Meionite- 3CaAl 2Si 2O 8 · CaCO 3Anthony et al , Handbook of mineralogy (2001)

Common Opal and Meionite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Common Opal and Meionite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Common Opal and Meionite Optical Properties during the identification of gemstone. Specific gravity of Common Opal is 2.78 whereas that of Meionite is 2.78.