NATURAL ZIRCON
Natural Zircon is a beautiful and magnificent gemstone that has been worn since antiquity. It comes in almost all colors, but white is the most popular as rashi ratna. White zircon is associated with the planet Venus and is also used as a substitute for Diamond. It is one of the modern birthstones for December-born people.
Physical properties/chemical composition
The chemical composition of zircon is ZrSiO4 (formula unit, Z = 4). Its hardness is 6 to 7.5, according to the Mohs scale. The specific gravity of zircon is 4.6–4.7. The refractive index of Zircon stone is 1.93–1.987.