When it comes to choosing the best pick among Blue Gemstones gemstones, Afghanite is known to be a popular choice!Physical properties of Afghanite include its hardness, gravity, fracture, cleavage, etc. For any gemstone crystal, Afghanite 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. Afghanite cleavage is nothing but the plane across which the crystal splits during cutting. Afghanite cleavage is Perfect ,and specific gravity of Afghanite is 2.55-2.65.
The physical properties of Afghanite, 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 Afghanite is represented by (Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009).