xenotime

xenotime
[ˈzɛnə(ʊ)tʌɪm]
noun
  1. [mass noun]a yellowish-brown mineral which occurs in some igneous rocks and consists of a phosphate of yttrium and other rare-earth elements
    (矿)磷钇矿
  2. Composition: native yttrium phosphate
    成分: 由天然钇磷酸盐组成
语源
  1. mid 19th cent.: from xeno-, apparently erroneously for Greek kenos 'vain, empty', + timē 'honour' (because it was wrongly supposed to contain a new metal)
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