A dark green or greenish-black silicate mineral, Be2FeY2Si2O10, containing several of the rare earths in combination with iron.

 
  • 矽铍钆矿一种含有纯土和铁混合物的深绿色或淡黑色的硅酸盐矿物,be2fey2si2o10
今日热词
目录 附录 查词历史