phosphate rock

noun

: a rock that consists largely of calcium phosphate usually together with other minerals (such as calcium carbonate), is used in making fertilizers, and is a source of phosphorus compounds

Examples of phosphate rock in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Phosphate fertilizers require phosphate rock, ammonia, and sulfuric acid. Dan Eberhart, Forbes.com, 7 May 2026 The dunes are 35 million tons of phosphogypsum, a byproduct of mining waste and the processing of phosphate rock for acid and fertilizer production. Michelle Gumede, Los Angeles Times, 19 Apr. 2026 Advertisement Elemental phosphorus is produced from phosphate rock, which is mined but is relatively rare. Jack Lohmann, Time, 30 Mar. 2026 Industrial minerals include lime, with the top producers being Alabama, Missouri, Ohio and Texas; gypsum from California, Iowa, Kansas and more; salt, much of which is produced in Kansas, Louisiana and Michigan; and phosphate rock, which is produced in Florida and Idaho, among others. Sahit Muja, Forbes, 2 Jan. 2025 Phosphorus, derived from phosphate rock, is a fertilizer that fuels agriculture the world over, while copper finds its way into any number of electronics due to its conductivity. Sean Mowbray, Discover Magazine, 25 Feb. 2023 Better recycling programs might also help ween the world off phosphate rock. WIRED, 20 Jan. 2023

Word History

First Known Use

1869, in the meaning defined above

Time Traveler
The first known use of phosphate rock was in 1869

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Cite this Entry

“Phosphate rock.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/phosphate%20rock. Accessed 21 May. 2026.

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