Discovered : by M.H. Klaproth in 1789 Isolated in Berlin, Germany Origin : The name is derived from the Arabic ‘zargun’, meaning gold colour. Description : A hard, silvery metal that is very resistant to corrosion and used in nuclear reactors since it does not absorb neutrons. The oxide is used to make heat-resistant crucibles, foundry bricks, ceramics and abrasives, and it is so strong that even scissors and knives can be made from it. Large crystals of zircon are cut as gem stones and have a golden hue, which is how the element was first discovered and given its name. Image : Scarab - Ancient Egyptians used zircon in jewellery.