rare earth elementshttp://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31343490enGetty Institute2026-03-30 20:32:38http://AATesaurus.cultura.gencat.cat/aat/getty_enTesaurus d'Art i Arquitecturatext/html rare-earth element rare-earth elements rare-earth metal rare-earth metals REE elements, rare earth metals, rare earth rare earth element rare earth metal rare earth metals