When it comes to choosing the best pick among Brown Gemstones gemstones, Jet lignite is known to be a popular choice!Physical properties of Jet lignite include its hardness, gravity, fracture, cleavage, etc. For any gemstone crystal, Jet lignite 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. Jet lignite cleavage is nothing but the plane across which the crystal splits during cutting. and specific gravity of Jet lignite is 1.30-1.34.
The physical properties of Jet lignite, 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.