A reddish-brown phosphate mineral containing rare-earth metals, (Ce, La, Y, Th)PO4, important as a source of cerium and thorium.

 
  • 独居石一种含有稀土(铈、镧、钇、钍)的浅红褐色磷矿,分子式为PO4,它是铈和钍的重要来源
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