Amethyst and Hardystonite Physical Properties

Amethyst and Hardystonite Chemical Formula

While comparing Amethyst and Hardystonite 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 Amethyst and Hardystonite chemical formula.

• Chemical formula of Amethyst- SiO₂
• Chemical formula of Hardystonite- Ca 2ZnSi 2O 7Anthony et al , Handbook of mineralogy (2001)

Amethyst and Hardystonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Amethyst and Hardystonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Amethyst and Hardystonite Optical Properties during the identification of gemstone. Specific gravity of Amethyst is 3.396-3.443 whereas that of Hardystonite is 3.396-3.443.