bastnasite

Từ điển Oxford Learners Wordfinder Dictionary

noun

a yellow-to-brown mineral that is a source of rare earth elements
• Syn:
bastnaesite
• Hypernyms:
mineral
• Substance Meronyms:
cerium, Ce, atomic number 58, neodymium, Nd,
Nd, praseodymium, Pr, atomic number 59, samarium,
Sm, atomic number 62