Emerald and Milk Opal Physical Properties

Emerald and Milk Opal Chemical Formula

While comparing Emerald and Milk Opal 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 Emerald and Milk Opal chemical formula.

• Chemical formula of Emerald- Be₃Al₂SiO₆
• Chemical formula of Milk Opal- SiO2·nH2O

Emerald and Milk Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Emerald and Milk Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Emerald and Milk Opal Optical Properties during the identification of gemstone. Specific gravity of Emerald is 1.98-2.50 whereas that of Milk Opal is 1.98-2.50.