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

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 No new hematite is being formed today, Lacefield said, because that ancient bacteria is no longer around. Dennis Pillion | Dpillion@al.com, al, 1 Dec. 2021 The rust comes from iron on the lunar surface oxidating into lunar hematite. Jamie Carter, Forbes, 20 Sep. 2021 So, all in all, Mars is red because of hematite, which is a red form of ferric oxide. Ethan Siegel, Forbes, 11 Mar. 2021 Like on Mars, the red color of the Tséyi’ rocks derive from the mineral hematite, and the canyon was carved into the sandstone by running water, once abundant also on the Red Planet. David Bressan, Forbes, 12 Mar. 2021 The particles that make up this hematite are small: between about 3 and 45 microns in diameter. Ethan Siegel, Forbes, 11 Mar. 2021 The polar surfaces showed spectra that matched the mineral hematite (Fe2O3), according to the study's abstract. Chris Ciaccia, Fox News, 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, 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, 6 Sep. 2020

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

Time Traveler

The first known use of hematite was in 1540

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Dictionary Entries Near hematite

hematinometer

hematite

hematite red

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Statistics for hematite

Last Updated

12 Dec 2021

Cite this Entry

“Hematite.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hematite. Accessed 26 Jan. 2022.

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More from Merriam-Webster on hematite

Britannica.com: Encyclopedia article about hematite

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