do·​lo·​mite | \ ˈdō-lə-ˌmīt How to pronounce dolomite (audio) , ˈdä- \

Definition of dolomite

1 : a mineral CaMg(CO3)2 consisting of a calcium magnesium carbonate found in crystals and in extensive beds as a compact limestone
2 : a limestone or marble rich in magnesium carbonate

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Other Words from dolomite

dolomitic \ ˌdō-​lə-​ˈmi-​tik How to pronounce dolomite (audio) , ˌdä-​ \ adjective

Examples of dolomite in a Sentence

Recent Examples on the Web Li says the ant’s armor is very similar in composition to the mineral dolomite, except slightly harder. National Geographic, "Leaf-cutter ants have rocky crystal armor, never before seen in insects," 25 Nov. 2020 Just like Drummond's dolomite foundation, this vehicle is rock solid. David Beard, Car and Driver, "Tested: 2020 Land Rover Defender 110 SE Refines an Off-Road Icon," 26 Oct. 2020 Soluble rocks like limestone, dolomite, and gypsum are submerged under water, where the minerals slowly dissolve into the surrounding water. Jennifer Ouellette, Ars Technica, "Mathematicians may have unlocked the secret of how “stone forests” form," 16 Sep. 2020 Vulcan Quarries donated two dump trucks full of the Ketona dolomite and Manion was able to grow several of the Glade species at the garden. Dennis Pillion |, al, "Alabama’s stunning biodiversity includes many unusual plants," 30 Dec. 2019 The other important minerals available in significant quantities are limestone, dolomite, manganese, mica, china clay, graphite, fire clay, coal bed methane, uranium, phosphorite, apatite, quartz, gold, feldspar and pyroxenite. Gurvinder Singh, Quartz India, "The coal mining region in India where the ground beneath shakes and belches fire," 4 Oct. 2019 Even more telling are microfossils that Knauth and his colleagues have unearthed from ancient holes pocking the barren surface of the dolomite. Peter Byrne, Quanta Magazine, "Early Life in Death Valley," 24 Apr. 2014 The auditorium resembles a ship's prow and its sides echo the cliff walls of the quarry where congregants collected 1,000 tons of dolomite. Andrea Sachs,, "On the trail of Frank Lloyd Wright in Illinois and Wisconsin," 11 Sep. 2019 In the early 1990s, Knauth analyzed the geochemistry of the surface of this 1,000-foot layer of dolomite. Peter Byrne, Quanta Magazine, "Early Life in Death Valley," 24 Apr. 2014

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'dolomite.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of dolomite

1794, in the meaning defined at sense 1

History and Etymology for dolomite

French, from Déodat de Dolomieu †1801 French geologist

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Time Traveler for dolomite

Time Traveler

The first known use of dolomite was in 1794

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Cite this Entry

“Dolomite.” Dictionary, Merriam-Webster, Accessed 25 Feb. 2021.

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