When it comes to choosing the best pick among Green Gemstones gemstones, Brazilianite is known to be a popular choice!Physical properties of Brazilianite include its hardness, gravity, fracture, cleavage, etc. For any gemstone crystal, Brazilianite 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. Brazilianite cleavage is nothing but the plane across which the crystal splits during cutting. Brazilianite cleavage is (010) Distinct to good,and specific gravity of Brazilianite is 2.98-2.99.
The physical properties of Brazilianite, 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 Brazilianite is represented by NaAl 3(PO 4) 2(OH) 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references.