On our beautiful Resarö island, there has been a famous historic mine, unkown to many. In this Ytterby mine, located on Resarö in Vaxholm Kommun, outside Stockholm nine elements were discovered here for the first time in history: Yttrium (named after Ytterby) Ytterbium (named after Ytterby) Terbium (named after Ytterby) Erbium (named after Ytterby) Holmium […]