Erbium

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Erbium
Properties
Atomic symbol Er
Atomic number 68
Classification Metallic
Atomic mass 167.259 amu
Other Information
Date of discovery 1842
Name of discoverer Carl Gustaf Mosander
Name origin Named for Ytterby, Sweden
Uses Erbium oxide is used in ceramics to obtain a pink glaze. Also used to make infrared-absorbing glass and in alloys with titanium.
Obtained from Found with other heavier rare earths.