peridotite
noun
pe·ri·do·tite
pə-ˈri-də-ˌtīt 
: any of a group of granular igneous rocks composed of ferromagnesian minerals and especially olivine
Examples of peridotite in a Sentence
Recent Examples on the Web
The upper mantle below that is made up of peridotite and spans 217 miles.
—
Tree Meinch, Discover Magazine, 23 June 2023
The cores are largely made of peridotite, an igneous rock made of the minerals pyroxene and olivine, that is the most common type of rock in the upper mantle, per the Washington Post.
—Will Sullivan, Smithsonian Magazine, 12 June 2023
The samples aren’t pure peridotite, and that could be a key piece of evidence.
—Carolyn Y. Johnson, Anchorage Daily News, 6 June 2023
The samples aren't pure peridotite, and that could be a key piece of evidence.
—Carolyn Y. Johnson, BostonGlobe.com, 6 June 2023
Before this record-breaking sample, the largest hole drilled into serpentine peridotite was only 200 meters, which was retrieved back in 1993.
—Darren Orf, Popular Mechanics, 8 June 2023
Occasionally, volcanic eruptions spew out bits of it — chunks of greenish peridotite, the type of rock that dominates the upper mantle, embedded in basalt rock.
—Carolyn Y. Johnson, Anchorage Daily News, 6 June 2023
Occasionally, volcanic eruptions spew out bits of it - chunks of greenish peridotite, the type of rock that dominates the upper mantle, embedded in basalt rock.
—Carolyn Y. Johnson, BostonGlobe.com, 6 June 2023
Oman’s mantle peridotite rocks contain high levels of magnesium and calcium in two abundant minerals: olivine and pyroxene.
—Douglas Fox, Scientific American, 1 July 2021
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Tree Meinch, Discover Magazine, 23 June 2023
The cores are largely made of peridotite, an igneous rock made of the minerals pyroxene and olivine, that is the most common type of rock in the upper mantle, per the Washington Post.
—Will Sullivan, Smithsonian Magazine, 12 June 2023
The samples aren’t pure peridotite, and that could be a key piece of evidence.
—Carolyn Y. Johnson, Anchorage Daily News, 6 June 2023
The samples aren't pure peridotite, and that could be a key piece of evidence.
—Carolyn Y. Johnson, BostonGlobe.com, 6 June 2023
Before this record-breaking sample, the largest hole drilled into serpentine peridotite was only 200 meters, which was retrieved back in 1993.
—Darren Orf, Popular Mechanics, 8 June 2023
Occasionally, volcanic eruptions spew out bits of it — chunks of greenish peridotite, the type of rock that dominates the upper mantle, embedded in basalt rock.
—Carolyn Y. Johnson, Anchorage Daily News, 6 June 2023
Occasionally, volcanic eruptions spew out bits of it - chunks of greenish peridotite, the type of rock that dominates the upper mantle, embedded in basalt rock.
—Carolyn Y. Johnson, BostonGlobe.com, 6 June 2023
Oman’s mantle peridotite rocks contain high levels of magnesium and calcium in two abundant minerals: olivine and pyroxene.
—Douglas Fox, Scientific American, 1 July 2021
See More
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'peridotite.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Word History
Etymology
French péridotite, from péridot
First Known Use
1882, in the meaning defined above
Dictionary Entries Near peridotite
Cite this Entry
“Peridotite.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/peridotite. Accessed 30 Nov. 2023.
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More from Merriam-Webster on peridotite
Britannica.com: Encyclopedia article about peridotite
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