68Er Erbium
Year Discovered
1842
Discovered By
Carl Mosander of Sweden
Biological Rating
Not necessary for life.
Description
Named after the town of Ytterby, Sweden, erbium is a soft, silvery-white metal that is moderately reactive, slowly reacting with air, water and acids. Erbium, holmium and dysprosium are nearly identical to each other. Erbium is used in heat-absorbing glass, photographic filters, and as a fiber-optic amplifier. It colors glass and porcelain pink and is often used to coat sunglasses. Erbium is used in the nuclear industry, as well as in alloys, especially with vanadium and titanium.
Biological Benefits
Erbium has no known biological use. It does act to stimulate the metabolism.
Role in Life Processes
No known benefit for life processes in plants and animals.
Sources
Erbium is obtained from bastnasite and monazite, where it occurs as an impurity. It is mined in the USA, China, Russia, Australia, and India.