[化] 硅铍钇矿

[医] 钆矿石(含钆、钇、铍等元素)

[ noun ]
a mineral that is a source of rare earths; consists of silicates of iron and beryllium and cerium and yttrium and erbium
<noun.substance>

Gadolinite \Gad"o*lin*ite\, n. [Named after Gadolin, a Russian
chemist.] (Min.)
A mineral of a nearly black color and vitreous luster, and
consisting principally of the silicates of yttrium, cerium,
and iron.