Falcons Eye and Onyx Physical Properties

Falcons Eye and Onyx Chemical Formula

While comparing Falcons Eye and Onyx 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 Falcons Eye and Onyx chemical formula.

• Chemical formula of Falcons Eye- SiO 2Walter Schumann , Gemstones of the world (2001)
• Chemical formula of Onyx- SiO₂

Falcons Eye and Onyx Specific Gravity

Another important criteria for qualitative analysis of gemstones is Falcons Eye and Onyx Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Falcons Eye and Onyx Optical Properties during the identification of gemstone. Specific gravity of Falcons Eye is 2.55-2.70 whereas that of Onyx is 2.55-2.70.