单词	chert
释义	chert noun ˈchərt  ˈchat  : a rock resembling flint and consisting essentially of a large amount of fibrous chalcedony with smaller amounts of cryptocrystalline quartz and amorphous silica cherty ˈchər-tē  ˈcha- adjective Example Sentences Recent Examples on the Web 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 The Southern Pomo built tule balsa rafts and lived in tule huts all over the Santa Rosa Plain, fishing for salmon with hooks chipped from chert. Carolyn Wells, Longreads, 24 Mar. 2022 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 This chert bladelet still has a remnant of its bone haft attached. Kiona N. Smith, Ars Technica, 3 Mar. 2022 Who made these small, efficient chert blades and used so much ocher at Xiamabei? Kiona N. Smith, Ars Technica, 3 Mar. 2022 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 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 Blades chipped from cryptocrystalline, rocks such as chert and obsidian, are extremely sharp. Keith Mccafferty, Field & Stream, 24 Apr. 2020 See More Word History Etymology origin unknown First Known Use 1679, in the meaning defined above
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