🇬🇧 en fi 🇫🇮

rare earth noun

  • (chemistry) Any of the naturally occurring oxides of the lanthanide metals; they are widely distributed in relatively small concentrations and are used in glassmaking, ceramic glazes etc.
 maametallimineraali
rare earth element
harvinainen maametalli
rare earth mineral
harvinaisia maametalleja sisältävä mineraali
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