Opal and Blue gold Physical Properties

Opal and Blue gold Chemical Formula

While comparing Opal and Blue gold 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 Opal and Blue gold chemical formula.

• Chemical formula of Opal- SiO₂ · nH₂O
• Chemical formula of Blue gold- Au(CuAl)2

Opal and Blue gold Specific Gravity

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