Yttrium serves as an ideal non-magnetic diluent for the rare-earth metals. 釔被用作稀土金屬一種理想的非磁性稀釋劑。
Yet another rare earth metal, lanthanum, is a major ingredient for hybrid car batteries. 而另一種稀土金屬鑭，則是混合動力車電池的主要原料。
The color of Apatite is often due to the presence of rare earth elements. 磷灰石的顏色常取決於存在的稀土元素。
This method could determine many non-REE in enriched-europium mixture rare earth oxide at a time and it was a rapid method. 該方法能同時測定富銪混合稀土氧化物中多種非稀土元素的含量，提高了分析速度。
