How to Use chert in a Sentence

chert

noun
  • This chert bladelet still has a remnant of its bone haft attached.
    — Kiona N. Smith, Ars Technica, 3 Mar. 2022
  • The blade was made of a hard, dark rock called chert that is similar to flint.
    — Nicholas St. Fleur, New York Times, 21 June 2018
  • The tools—six sharp brown chert flakes and a scraper—make a much clearer case.
    — Kiona N. Smith, Ars Technica, 29 Oct. 2018
  • Quartzite turned out to be the sharpest stone on the list, with chert coming in a close second.
    — Kiona N. Smith, Ars Technica, 3 Feb. 2020
  • And in his final moments, the Iceman ran out of chert to fix his tools.
    — Nicholas St. Fleur, New York Times, 21 June 2018
  • Most of the blade-like remnants are smaller than two centimeters and are made from chert and quartz.
    — Jane Recker, Smithsonian Magazine, 23 Mar. 2022
  • Who made these small, efficient chert blades and used so much ocher at Xiamabei?
    — Kiona N. Smith, Ars Technica, 3 Mar. 2022
  • These were flint and chert tools from the Early Mesolithic era, over 9,000 years ago.
    — Andrea Margolis, FOXNews.com, 4 Dec. 2025
  • Blades chipped from cryptocrystalline, rocks such as chert and obsidian, are extremely sharp.
    — Keith McCafferty, Field & Stream, 24 Apr. 2020
  • It is made of red rock — radiolarian chert, formed millions of years ago, when this part of the world was at the bottom of an ancient sea.
    — Carl Nolte, SFChronicle.com, 21 Mar. 2020
  • The water was ice-cold and filtered through the chert and limestone of the country and tasted as though civilization was still something in the future.
    — Sebastian Junger, Outside Online, 19 May 2021
  • Fungi fossils preserved in the chert contained compounds from the breakdown of chitin and glucan, key structural molecules in fungi.
    — Katie Hunt, CNN Money, 5 Feb. 2026
  • McKillop and Aoyama examined the edges of 20 chert blades from the site under a microscope.
    — Kiona N. Smith, Ars Technica, 9 Oct. 2018
  • In exchange, Cahokian emissaries brought with them a kind of rock known as Burlington chert, a familiar resource for making their unique tri-lobed projectile points.
    — Jayur Mehta, The Conversation, 30 Oct. 2020
  • The new research focused on three Prototaxites fossils unearthed in the Rhynie chert, a prehistoric land ecosystem near Aberdeen, Scotland.
    — Katie Hunt, CNN Money, 5 Feb. 2026
  • At sites older than BOK-2, occupants made their tools out of local volcanic rock, with exotic materials like obsidian and green, white, or brown chert showing up less than eight percent of the time.
    — Kiona N. Smith, Ars Technica, 18 Mar. 2018
  • Whoever created it was probably a hunter-gatherer living at Lingjing, in northern China, near the end of the last Ice Age; their culture also made simple pottery and shaped black chert into small, sharp blades.
    — Kiona N. Smith, Ars Technica, 10 June 2020
  • For instance, the Mars 2020 fossil hunters will look for chert and silica—two types of minerals that, on Earth, are ideal for entombing and preserving biological material.
    — National Geographic, 17 Oct. 2016

Some of these examples are programmatically compiled from various online sources to illustrate current usage of the word 'chert.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

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