do·​lo·​mite | \ˈdō-lə-ˌmīt, 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, ˌdä-​ \ adjective

Examples of dolomite in a Sentence

Recent Examples on the Web

The small park just north of Whitefish Dunes State Park is home to a dramatic shoreline of gray-white dolomite cliffs that are a mini version of the Apostles' orange sandstone beauties. Chelsey Lewis, Milwaukee Journal Sentinel, "5 places other than the ice caves to see ice formations in Wisconsin," 5 Feb. 2018 The master bath’s tub and fittings are by Lefroy Brooks, the stool is from Room & Board, the walls and floor are sheathed in white dolomite marble, and the artwork in the hallway is by Robert Janitz. Fred Nicolaus, ELLE Decor, "Inside A Tribeca Family Loft Filled With Mid-Century Modern Furniture And Art," 12 Feb. 2018 As years passed, marine sediments formed a layer of limestone known as dolomite nearly 100 feet thick. Julia Griffin, Scientific American, "How Mother Nature and a Pentagon Mathematician Created the World’s Largest Instrument," 9 June 2017

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

The first known use of dolomite was in 1794

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More from Merriam-Webster on dolomite

Rhyming Dictionary: Words that rhyme with dolomite Encyclopedia article about dolomite

Comments on dolomite

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living or existing for a long time

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