How to Use iron oxide in a Sentence

iron oxide

noun

• Over time, the iron weathers to form iron oxide, which is the base for the unique pigment.
  — Clarissa Wei, Smithsonian Magazine, 25 Sep. 2020
• The dunes in the area had a soft red hue due to iron oxide in the sand, which soaked up the sun's energy and held it.
  — Richard Mason, Arkansas Online, 23 Aug. 2020
• The hotter Earth melted iron oxide, and the iron sank into the core.
  — Chris Smith, BGR, 23 Mar. 2021
• The fentanyl was found in a shipment of iron oxide from China.
  — Fox News, 27 Feb. 2020
• The ripply pinkish stuff between the dunes is made of smaller grains of sand laden with iron oxide -- rust!
  — Phil Plait, Discover Magazine, 7 Dec. 2010
• The Tava is also cross-cut by silvery-gray veins of iron oxide.
  — Liam Courtney-Davies, Discover Magazine, 14 Nov. 2024
• Cliffs streaked red with iron oxide pop against the dark green firs and the iridescent purple and blue mountains in the distance.
  — Julie Jag, The Salt Lake Tribune, 8 Aug. 2022
• The redness of bricks comes from iron oxide—and so does the redness of the rust farmers once mixed with linseed oil to protect their barns’ wood.
  — Natalie Hamilton, Smithsonian Magazine, 18 Mar. 2021
• This sand, red from iron oxide, was found at Makena Point, Maui.
  — Discover Magazine, 29 June 2010
• The area gets its name from the reddish tint created by iron oxide deposits.
  — Michael Goldstein, Forbes, 23 Apr. 2022
• While the red color comes from the iron oxides present, there are a lot of other materials in it, some of which can be toxic.
  — John Timmer, Ars Technica, 24 Jan. 2024
• Located in the Navajo Nation near Page, Ariz., the slot canyon’s warm colors come from iron oxide, or rust, in the sandstone.
  — Allison Parshall, Scientific American, 8 Feb. 2024
• Your steel may look shiny after knocking the visible rust off, but there’s still some iron oxide there.
  — Ben Wojdyla, Popular Mechanics, 21 Apr. 2023
• Ancient mine gets the shaft Even very important resources, like the iron oxide mine at San Ramón, were abandoned.
  — Kiona N. Smith, Ars Technica, 7 Apr. 2022
• The planet is covered in rust or iron oxide, not nuclear waste.
  — Chris Smith, BGR, 23 Mar. 2021
• The presence of a reddish iron oxide, for instance, indicates that the wildfire burned very hot.
  — Matt Simon, Wired, 18 Aug. 2021
• The painters used ochre that produced a reddish mulberry pigment, which came from the presence of iron oxide.
  — Livia Gershon, Smithsonian Magazine, 23 Feb. 2021
• Rather than radioactive tracers, the new method sends an iron oxide contrast agent through the patient's body.
  — John Ericson, Newsweek, 2 Apr. 2014
• The moon has a much higher iron oxide (FeO) concentration than Earth.
  — Korey Haynes, Discover Magazine, 29 Apr. 2019
• Rust, which is also known as iron oxide, gives Mars its reddish color.
  — Chris Ciaccia, Fox News, 6 Sep. 2020
• The dust particles consist of iron oxide, the same chemical as rust.
  — Shi En Kim, Smithsonian Magazine, 18 Oct. 2023
• Relative to the Earth, the Moon has a lot more iron oxide, which suggests that Theia also had a lot of this material.
  — John Timmer, Ars Technica, 1 Nov. 2023
• The art that survives today uses a color red, which comes from mixing iron oxide taken from the soil.
  — Joshua Rapp Learn, Discover Magazine, 15 Jan. 2025
• One idea is to harness red mud, which is typically 40% to 70% iron oxide, to make iron-rich cements.
  — Robert F. Service, Science | AAAS, 20 Aug. 2020
• Cinnabar was the high-end option for painting things red; more ordinary projects made-do with simple iron oxide.
  — Kiona N. Smith, Ars Technica, 17 Jan. 2020
• Also, because iron oxide comes in red, yellow and brown, these stains are available in wood tones only.
  — Washington Post, 7 Sep. 2020
• True Pigments is not the first to extract iron oxide pigments from pollution.
  — Chelsea Lee, CNN, 2 Aug. 2022
• In some places, red soils comprised of calcareous clay are rich in iron oxides that lend a bright red color as well as impressive weight and structure to the wines.
  — Tom Hyland, Forbes, 7 Jan. 2025
• Because of the absence of liquid water on Mars’s surface today, those rusty red minerals were thought to arise from dry iron oxides present in the dust, such as hematite.
  — Doyle Rice, USA TODAY, 26 Feb. 2025
• The mesh coating relies on iron oxide and Nafion, which is a fluoropolymer-copolymer material that is often used in fuel cells.
  — IEEE Spectrum, 15 Jan. 2025