Onyx and Serpentine Physical Properties

Onyx and Serpentine Chemical Formula

While comparing Onyx and Serpentine 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 Onyx and Serpentine chemical formula.

• Chemical formula of Onyx- SiO₂
• Chemical formula of Serpentine- H 4Mg 3Si 2O 9Walter Schumann , Gemstones of the world (2001) More from other references

Onyx and Serpentine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Onyx and Serpentine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Onyx and Serpentine Optical Properties during the identification of gemstone. Specific gravity of Onyx is 2.44-2.62 whereas that of Serpentine is 2.44-2.62.