Thulium (Tm) bullion 100 gram bar
Thulium 100 gram bar - Rare Earth Bullion - .999 bullion
Discovered by the Swedish chemist Per Theodor Cleve in 1879 at about the same time he was credited with discovering holmium, thulium is the second most rare of the rare earth elements behind promethium. As promethium is radioactive and will not be one of our products, thulium is the rarest of our rare earth series. Despite it's rarity and cost, there are important industrial uses of thulium in solid state lasers and x-ray machines.