Zircon is a mineral belonging to the group of nesosilicates and is a source of the metal zirconium. Zircon has a refractive index of 1.93 – 1.987 and a hardness of 6.5 - 7.5 on the Mohs scale. This beautiful piece of Mozambiue Zircon weighs 17.82 cts, measures 12x10x9 mm and has some veils.