When it comes to choosing the best pick among Green Gemstones gemstones, Feldspar is known to be a popular choice!Physical properties of Feldspar include its hardness, gravity, fracture, cleavage, etc. For any gemstone crystal, Feldspar 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. Feldspar cleavage is nothing but the plane across which the crystal splits during cutting. Feldspar cleavage is two or three,and specific gravity of Feldspar is 2.56-2.75.
The physical properties of Feldspar, 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.