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单词 allanite
释义

allanite

noun

al·​lan·​ite
ˈaləˌnīt
plural -s
: a mineral consisting of a brown or black monoclinic silicate allied to epidote and containing cerium, thorium, and other rare metals
allanitic
¦alə¦nitik
adjective

Word History

Etymology

Thomas Allan †1833 English mineralogist, its discoverer + English -ite

First Known Use

1810, in the meaning defined above

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