When it comes to choosing the best pick among Green Gemstones gemstones, Smithsonite is known to be a popular choice!Physical properties of Smithsonite include its hardness, gravity, fracture, cleavage, etc. For any gemstone crystal, Smithsonite 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. Smithsonite cleavage is nothing but the plane across which the crystal splits during cutting. Smithsonite cleavage is Perfect on [1011],and specific gravity of Smithsonite is 4.00-4.65.
The physical properties of Smithsonite, 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 Smithsonite is represented by ZnCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references.