Cadmium was discovered in 1817 by a native of Goettingen Medical Frederick Stromeyer. The metal was about 100 years promoted the most part only in Germany. Cadmium found are very rare, and the collection is extremly expensive. Cadmium is particularly sought after in the wake of the emerging solar industry increasingly stronger, especially in the mass production of solar cells. With the increasing production of solar cells it can be assumed that the value of cadmium also continues to rise.
Since the item is so rare and has a markedly wide range of technical possibilities, cadmium is considered a safe and profitable investment.