A supposed steel speculated to have now been found in 1845 by the Swedish chemist Swanberg in zircon. After many unsuccessful tries to confirm this brand new element, the factor known as hafnium (atomic number 72) was discoverd in 1923 by D. Coster and G. von Hevesey in zirconium-containing mineral zircon. Hafnium, current at 1 to 5per cent in many zirconium-bearing minerals, but difficult to split up from zirconium, is just about the element that offered rise towards properties attributed to the hypothetical norium.
A supposed brand new chemical element announced in 1845 by Svanberg as detected by him when you look at the mineral zircon, particularly in specimens from Norway. It is often been shown to be identical because of the currently understood zirconium.