Opal and Starlite Physical Properties

Opal and Starlite Chemical Formula

While comparing Opal and Starlite 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 Starlite chemical formula.

• Chemical formula of Opal- SiO₂ · nH₂O
• Chemical formula of Starlite- ZrSiO 4Michael O’Donoghue , Gems, Sixth Edition (2006)

Opal and Starlite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Opal and Starlite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Opal and Starlite Optical Properties during the identification of gemstone. Specific gravity of Opal is 3.91-4.73 whereas that of Starlite is 3.91-4.73.