: a yellow to red or brown mineral that is a phosphate of thorium and various rare earth elements and occurs especially in sand and gravel deposits

Examples of monazite in a Sentence

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Perth, Australia–based Lynas Rare Earths, the largest rare-earths company outside of China, is expanding its monazite mining and processing operations. — Glenn Zorpette, IEEE Spectrum, 15 Oct. 2026 See All Example Sentences for monazite

Word History

Etymology

German Monazit, from Greek monazein

First Known Use

1836, in the meaning defined above

Time Traveler
The first known use of monazite was in 1836

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Cite this Entry

“Monazite.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/monazite. Accessed 30 Oct. 2026.

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