The following uses for erbium are gathered from a number of sources as well as from anecdotal comments. I would be delighted to receive corrections as well as additional referenced uses.

• nuclear industry
• metallurgical uses. Added to vanadium, for example, erbium lowers hardness and improves workability
• erbium oxide is pink and is a colourant in glasses and porcelain enamel glazes
• photographic filter