Zircon and Sapphire Physical Properties

Zircon and Sapphire Chemical Formula

While comparing Zircon and Sapphire 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 Zircon and Sapphire chemical formula.

• Chemical formula of Zircon- ZrSiO₄
• Chemical formula of Sapphire- Al ₂ O ₃

Zircon and Sapphire Specific Gravity

Another important criteria for qualitative analysis of gemstones is Zircon and Sapphire Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Zircon and Sapphire Optical Properties during the identification of gemstone. Specific gravity of Zircon is 3.95-4.03 whereas that of Sapphire is 3.95-4.03.