mag·​ne·​site | \ ˈmag-nə-ˌsīt How to pronounce magnesite (audio) \

Definition of magnesite

: native magnesium carbonate used especially in making refractories and magnesium oxide

Examples of magnesite in a Sentence

Recent Examples on the Web In Chemical Geology as well as a recent patent, Kelemen and his colleagues propose using a mineral called magnesite that, when heated, gives off pure CO2, which could be captured in tanks and pumped underground. Robert F. Service, Science | AAAS, 3 Sep. 2020 That reaction would leave magnesium oxide powder, which when spread thin would rapidly react with CO2 from the atmosphere, re-forming magnesite, completing a cycle that could be repeated over and over. Robert F. Service, Science | AAAS, 3 Sep. 2020 Taking carbon dioxide from the atmosphere and permanently storing it as magnesite is still a hypothetical. David Grossman, Popular Mechanics, 15 Aug. 2018 The problem is that, as a mineral, magnesite doesn't exactly form quickly. David Grossman, Popular Mechanics, 15 Aug. 2018 One metric ton of naturally forming magnesite can remove around half a ton of carbon dioxide from the atmosphere. David Grossman, Popular Mechanics, 15 Aug. 2018

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

First Known Use of magnesite

1815, in the meaning defined above

Learn More About magnesite

Time Traveler for magnesite

Time Traveler

The first known use of magnesite was in 1815

See more words from the same year

Dictionary Entries Near magnesite




See More Nearby Entries 

Statistics for magnesite

Cite this Entry

“Magnesite.” Dictionary, Merriam-Webster, Accessed 1 Jul. 2022.

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

More from Merriam-Webster on magnesite Encyclopedia article about magnesite


Test Your Vocabulary

Great Words for Scrabble

  • scrabble tiles that read scrabble quiz
  • Which of the following Q-without-U words means the number five in cards or dice?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

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!