Erbium is named for Swedish village of Ytterby and was discovered in 1860. Holmium is found along with the other rare-earth minerals principally in monazite and bastnasite. The metal is isolated using ion exchange and solvent extraction methods. Holmium, like the other rare-earth metals, has a bright silver luster and is malleable and ductile. Erbium has some nuclear and metallurgical uses, When added to vanadium, for example, erbium lowers the hardness and improves workability.