Onyx and Dioptase Physical Properties

Onyx and Dioptase Chemical Formula

While comparing Onyx and Dioptase 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 Dioptase chemical formula.

• Chemical formula of Onyx- SiO₂
• Chemical formula of Dioptase- CuSiO 2(OH) 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Onyx and Dioptase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Onyx and Dioptase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Onyx and Dioptase Optical Properties during the identification of gemstone. Specific gravity of Onyx is 3.25-3.35 whereas that of Dioptase is 3.25-3.35.