Cadmium in Germany, as an impurity in zinc carbonate. Stromeyer found the new element as an impurity in zinc carbonate (calamine), and, for 100 years, Germany remained the only important producer of the metal. The metal was named after the Latin word for calamine, because it was found in this zinc ore. Stromeyer noted that some impure samples of calamine changed color when heated but pure calamine did not. He was persistent in studying these results and eventually isolated cadmium metal by roasting and reducing the sulfide. The potential for cadmium yellow as pigment was recognized in the 1840s, but the
Ore Mountains Duke George the Bearded, it has been held annually since. Also interesting is Ore Mountain cuisine, which is simple, but rich in tradition. Since 1998 the Ore Mountains have striven to achieve UNESCO World Heritage status as the Ore Mountain Mining Region ("Montanregion Erzgebirge"). Ore Mountains The Ore Mountains or Ore Mountain Range () ( ; ; both literally "ore mountains") in Central Europe have formed a natural border between Saxony and Bohemia for around 800 years, from the 12th to the 20th centuries. Today, the border between Germany and the Czech Republic runs just north of the main crest