hematite

noun
he·​ma·​tite | \ ˈhē-mə-ˌtīt How to pronounce hematite (audio) \

Definition of hematite

: a reddish-brown to black mineral consisting of ferric oxide, constituting an important iron ore, and occurring in crystals or as earthy red ocher

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Other Words from hematite

hematitic \ ˌhē-​mə-​ˈti-​tik How to pronounce hematite (audio) \ adjective

Examples of hematite in a Sentence

Recent Examples on the Web The polar surfaces showed spectra that matched the mineral hematite (Fe2O3), according to the study's abstract. Chris Ciaccia, Fox News, "The moon is 'rusting' and scientists are stunned," 6 Sep. 2020 To confirm that hematite was in fact present, the team recruited Jet Propulsion Laboratory researchers Abigail Fraeman and Vivian Sun to give their findings a second look. Jennifer Nalewicki, Smithsonian Magazine, "Why Is the Moon Covered in Rust? Even Scientists Are Stumped by This Metal Mystery," 9 Sep. 2020 The hematite that was discovered is not near any of the water ice that has been discovered so far on the moon, adding another layer of complexity to the findings. Chris Ciaccia, Fox News, "The moon is 'rusting' and scientists are stunned," 6 Sep. 2020 One morning in September, a woman in need of grounding buys a hematite ring. Cathy Alter, Washington Post, "Calming nerves and blocking bullies: Behold the healing power of crystals and gems," 2 Jan. 2020 When this happened, dissolved iron rapidly linked up with the newly plentiful oxygen atoms, forming iron oxides such as hematite, a common mineral that contains a form of the element known as iron(III). Emily Underwood, Smithsonian Magazine, "The Complicated Role of Iron in Ocean Health and Climate Change," 6 Jan. 2020 These small, mineral hematite-rich concretions are near Fram Crater, visited by NASA's Opportunity rover in April 2004. Ashley Strickland, CNN, "Life may have existed on warm, rainy, ancient Mars before winter came," 20 Aug. 2019 These small, mineral hematite-rich concretions are near Fram Crater, visited by NASA's Opportunity rover in April 2004. Ashley Strickland, CNN, "Life may have existed on warm, rainy, ancient Mars before winter came," 20 Aug. 2019 These small, mineral hematite-rich concretions are near Fram Crater, visited by NASA's Opportunity rover in April 2004. Ashley Strickland, CNN, "Life may have existed on warm, rainy, ancient Mars before winter came," 20 Aug. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'hematite.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of hematite

1540, in the meaning defined above

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Time Traveler for hematite

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The first known use of hematite was in 1540

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Cite this Entry

“Hematite.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hematite. Accessed 18 Jan. 2021.

More from Merriam-Webster on hematite

Britannica.com: Encyclopedia article about hematite

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