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| | Samarium (Site not responding. Last check: 2007-11-07) |
 | | Samarium is a rare earth metal, with a bright silver lustre, that is reasonably stable in air; it ignites in air at 150°C.Three crystal modifications of the metal also exist, with transformations at 734 and 922°C, respectively. |
 | | Samarium oxide is catalytic for the dehydration and dehydrogenation of ethanol. |
 | | Samarium is never found free in nature, but, like other rare earth elements, is contained in many minerals, including monazite, bastnasite and samarskite ; monazite (in which it occurs upto an extent of 2.8%) and bastnasite are also used as commercial sources. |
| www.therfcc.org /samarium-41960.html (477 words) |
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