Zircon-Zircon is a mineral with the name zirconium silicate. The natural color of zircon differs from colorless to brown, red, green, yellow-golden, and blue. The colorless specimen of zircon stone is a substitute of diamond. The use of zircon is mainly as an opacifier and is used a decorative in the ceramic industry. It is also used an ornamental and gemstone. Zircon is mainly found in Australia.