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

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 In designer Kevin Dumais midcentury modern Tribeca loft, the walls and floor are sheathed in white dolomite marble. Kelsey Mulvey, ELLE Decor, 3 May 2022 The kitchen island has leathered dolomite countertops. Sarah Paynter, WSJ, 16 Mar. 2022 Next Petra plans to test its method outside of the laboratory on projects involving granite, dolomite, limestone, and basalt to try to prove that its method can work in places like California, Colorado, and the Appalachian Mountains. Khari Johnson, Wired, 9 Dec. 2021 The project, which was initiated by the Duterte administration, involved filling the coastline of Manila Bay with sand from crushed dolomite boulders, according to Reuters. Sudiksha Kochi, USA TODAY, 30 June 2016 Made from ground-up rock, limestone, or dolomite, lime is high in calcium. Megan Hughes, Better Homes & Gardens, 27 Sep. 2021 This bedrock includes limestone, dolomite and gypsum, and over time, groundwater has dissolved some of it. Ashley Strickland, CNN, 3 Aug. 2021 Li says the ant’s armor is very similar in composition to the mineral dolomite, except slightly harder. National Geographic, 25 Nov. 2020 Just like Drummond's dolomite foundation, this vehicle is rock solid. David Beard, Car and Driver, 26 Oct. 2020 See More

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.

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

Learn More About dolomite

Time Traveler for dolomite

Time Traveler

The first known use of dolomite was in 1794

See more words from the same year

Dictionary Entries Near dolomite




See More Nearby Entries 

Statistics for dolomite

Last Updated

15 May 2022

Cite this Entry

“Dolomite.” Dictionary, Merriam-Webster, Accessed 25 Jun. 2022.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

More from Merriam-Webster on dolomite Encyclopedia article about dolomite


Test Your Vocabulary

Name That Food

  • a-light
  • Name these cookies!
True or False

Test your knowledge - and maybe learn something along the way.

Universal Daily Crossword

A daily challenge for crossword fanatics.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!