When it comes to choosing the best pick among Blue Gemstones gemstones, Caledonite is known to be a popular choice!Physical properties of Caledonite include its hardness, gravity, fracture, cleavage, etc. For any gemstone crystal, Caledonite 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. Caledonite cleavage is nothing but the plane across which the crystal splits during cutting. Caledonite cleavage is [001] perfect; [100] distinct,and specific gravity of Caledonite is 5.6-5.76.
The physical properties of Caledonite, 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 Caledonite is represented by Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001).