Hardystonite and Sardonyx Physical Properties

Hardystonite and Sardonyx Chemical Formula

While comparing Hardystonite and Sardonyx 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 Hardystonite and Sardonyx chemical formula.

• Chemical formula of Hardystonite- Ca 2ZnSi 2O 7Anthony et al , Handbook of mineralogy (2001)
• Chemical formula of Sardonyx- SiO 2Ulrich Henn and Claudio C.

Hardystonite and Sardonyx Specific Gravity

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