In addition, ev-order metals (cerium, neodymium, samarium, gadolinium, dysprosium, erbium, and ytterbium) are more abundant than their odd-numbered neighbors (lanthanum, praseodymium, promethium, europium, terbium, holmium, thulium, and lutetium Erdé Terrarium Seltene Ern (REE): Alles, Was Sie über Das Neue Gold S 21 Holmium Price Per Kg Praseodym - Seltene Erden Weitere Einzelheiten im Angebot des Verkäufers.