When it comes to choosing the best pick among Colorless Gems gemstones, Gypsum is known to be a popular choice!Physical properties of Gypsum include its hardness, gravity, fracture, cleavage, etc. For any gemstone crystal, Gypsum 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. Gypsum cleavage is nothing but the plane across which the crystal splits during cutting. Gypsum cleavage is Perfect on , distinct on ,and specific gravity of Gypsum is 2.20-2.40.
The physical properties of Gypsum, 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 Gypsum is represented by CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009).