calcite

noun

cal·​cite ˈkal-ˌsīt How to pronounce calcite (audio)
: a mineral CaCO3 consisting of calcium carbonate crystallized in hexagonal form and including common limestone, chalk, and marble compare aragonite
calcitic adjective

Examples of calcite 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.
As chronicled in Episode 8, a calculated massacre of hundreds of locals has taken place, to distract from — and ultimately justify — the Empire’s aggressive and eventually calamitous extraction of valuable calcite from Ghorman. Matt Webb Mitovich, TVLine, 10 May 2025 Long-Term Burial: Calcium carbonate mineral precursors, such as calcite, undergo transformation into dolomite after being buried, facilitated by slowly rising temperatures (ranging between 60 to 100 degrees Celsius) underground. David Bressan, Forbes.com, 8 Apr. 2025 Under Earth’s surface temperature and pressure conditions chemical effects hinder the incorporation of magnesium ions into the crystal structure, favoring the formation of pure calcium carbonate like calcite or aragonite. David Bressan, Forbes.com, 8 Apr. 2025 The bedrock of New York elements for the Pace show is quartz, tourmaline and calcite, which have been ground into the pigment. Kristen Tauer, WWD, 19 Mar. 2025 See All Example Sentences for calcite

Word History

First Known Use

1840, in the meaning defined above

Time Traveler
The first known use of calcite was in 1840

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Cite this Entry

“Calcite.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/calcite. Accessed 15 May. 2025.

Kids Definition

calcite

noun
cal·​cite ˈkal-ˌsīt How to pronounce calcite (audio)
: a mineral substance made up of calcium carbonate and found in numerous forms including limestone, chalk, and marble
calcitic adjective

Medical Definition

calcite

noun
cal·​cite ˈkal-ˌsīt How to pronounce calcite (audio)
: a mineral CaCO3 consisting of calcium carbonate crystallized in hexagonal form and including common limestone, chalk, and marble
calcitic adjective

More from Merriam-Webster on calcite

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