: a rock resembling flint and consisting essentially of a large amount of fibrous chalcedony with smaller amounts of cryptocrystalline quartz and amorphous silica
Examples of chert in a Sentence
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Most of the chert that Tyler had found on that trip had been maroon, but this outcrop caught his eye for its striking shade of jet black.
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Laura Poppick, Rolling Stone, 30 June 2025
Enlarge / Black chert with bands of white chert formed in low-energy environment prior to S2 impact.
—Alka Tripathy-Lang, Ars Technica, 26 Jan. 2024
Still, the microorganisms Schopf discovered in the chert in Western Australia may not be the oldest fossil evidence of life on the planet.
—Joshua Rapp Learn, Discover Magazine, 14 Jan. 2022
This ratio revealed that the shapes preserved in the chert were characteristic of biological matter.
—Joshua Rapp Learn, Discover Magazine, 14 Jan. 2022
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Laura Poppick, Rolling Stone, 30 June 2025
Enlarge / Black chert with bands of white chert formed in low-energy environment prior to S2 impact.
—Alka Tripathy-Lang, Ars Technica, 26 Jan. 2024
Still, the microorganisms Schopf discovered in the chert in Western Australia may not be the oldest fossil evidence of life on the planet.
—Joshua Rapp Learn, Discover Magazine, 14 Jan. 2022
This ratio revealed that the shapes preserved in the chert were characteristic of biological matter.
—Joshua Rapp Learn, Discover Magazine, 14 Jan. 2022
See All Example Sentences for chert
Cite this Entry
“Chert.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/chert. Accessed 18 Jul. 2025.
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