Properties Samarium has a bright silver luster and is reasonably stable in air. Natural samarium is a mixture of several isotopes, three of which are unstable with long half-lives. Uses Samarium, along with other rare earths, is used for carbon-arc lighting for the motion picture industry. SmCo5 has been used in making a new permanent magnet material with the highest resistance to demagnetization of any known material. Samarium oxide has been used in optical glass to absorb the infrared.
Samarium is used to dope calcium fluoride crystal for use in optical lasers or lasers.
It is used in infrared absorbing glass and as a neutron absorber in nuclear reactors. We encourage you to bookmark any pages in this site that you find of value.