When it comes to choosing the best pick among White Gemstones gemstones, Hardystonite is known to be a popular choice!Physical properties of Hardystonite include its hardness, gravity, fracture, cleavage, etc. For any gemstone crystal, Hardystonite Optical Properties are responsible for imparting various physical properties to its structure. Knowledge of these properties is equally important to gem-cutters as well as to consumers. Hardystonite cleavage is nothing but the plane across which the crystal splits during cutting. Hardystonite cleavage is [001] good, [100] and [110] fair,and specific gravity of Hardystonite is 3.396-3.443.
The physical properties of Hardystonite, in fact, are imparted by the chemical composition of its individual molecule. The reactivity or inertness of the crystal is solely governed by its chemical structure. Chemical composition of Hardystonite is represented by Ca 2ZnSi 2O 7Anthony et al , Handbook of mineralogy (2001).