从定义上讲稀土市场不仅包括稀土元素,还包括钇。它们可以被进一步分为一个大的轻稀土组(占稀土消费总重量的95%),这个组主要由铈与镧组成,另外一个小的组(单位重量具有相对更高的价值)由高纯稀土氧化物或元素如钇、铕、钐,钕等组成。CRA估计西方世界1986年的稀土和钇 By definition, the rare earth market includes not only rare earth elements, but also yttrium. They can be further subdivided into a large light rare earth group (95% of the total rare earth consumption) consisting mainly of cerium and lanthanum, and a small group (of relatively higher weight per unit weight) consisting of high purity Rare earth oxides or elements such as yttrium, europium, samarium, neodymium and the like. CRA estimates 1986 rare earth and yttrium in the western world