Common Opal and Ajoite Physical Properties

Common Opal and Ajoite Chemical Formula

While comparing Common Opal and Ajoite 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 Ajoite chemical formula.

• Chemical formula of Common Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
• Chemical formula of Ajoite- (K,Na)3Cu20Al3Si29O76(OH)16•~8(H2O)

Common Opal and Ajoite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Common Opal and Ajoite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Common Opal and Ajoite Optical Properties during the identification of gemstone. Specific gravity of Common Opal is 2.96 whereas that of Ajoite is 2.96.