When it comes to choosing the best pick among Yellow Gemstones gemstones, Sulphur is known to be a popular choice!Physical properties of Sulphur include its hardness, gravity, fracture, cleavage, etc. For any gemstone crystal, Sulphur 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. Sulphur cleavage is nothing but the plane across which the crystal splits during cutting. and specific gravity of Sulphur is 2.05-2.08.
The physical properties of Sulphur, 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 Sulphur is represented by SWalter Schumann , Gemstones of the world (2001).