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hematite

American  
[hee-muh-tahyt, hem-uh-] / ˈhi məˌtaɪt, ˈhɛm ə- /

noun

  1. a very common mineral, iron oxide, Fe 2 O 3 , occurring in steel-gray to black crystals and in red earthy masses: the principal ore of iron.


hematite British  
/ ˈhɛmətaɪt, ˈhɛmətaɪt, ˌhiː-, ˈhiːm- /

noun

  1. Also called: iron glance. a red, grey, or black mineral, found as massive beds and in veins and igneous rocks. It is the chief source of iron. Composition: iron (ferric) oxide. Formula: Fe 2 O 3 . Crystal structure: hexagonal (rhombohedral)

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

hematite Scientific  
/ hē′mə-tīt′ /
  1. A reddish-brown to silver-gray metallic mineral. Hematite occurs as rhombohedral crystals, as reniform (kidney-shaped) crystals, or as fibrous aggregates in igneous, metamorphic, and sedimentary rocks. It is the most abundant ore of iron, and it is usually slightly magnetic. Chemical formula: Fe 2 O 3 .


Other Word Forms


Etymology

Origin of hematite

1535–45; < Latin haematītes bloodstone < Greek haimatī́tēs ( lithós ) bloodlike (stone). See hemat-, -ite 1


Vocabulary lists containing hematite

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

“If Iron Bridge volumes are displaced by hematite we see a risk of write-down of its carrying value at the FY results,” Jefferies says.

From The Wall Street Journal ● Apr. 27, 2026

Pigments made of minerals including hematite and rocks like lapis lazuli are ground into nanoparticles and suspended in silica, resembling “melted glass,” as Magaloni describes.

From Los Angeles Times ● Sep. 1, 2025

In addition to ferrihydrite the researchers used various quantities of iron oxide phases like magnetite, hematite, feroxyhyte and schwertmannite.

From Salon ● Mar. 1, 2025

With a microscope, the researchers also found a rust reddish pigment on the ornaments—likely cinnabar or hematite that were sprinkled or painted on the bodies of deceased royals as part of burial rites.

From Science Magazine ● Apr. 17, 2024

Coal, sandstone, clay ironstone, and brown hematite, were found along a line stretching E.N.E. from Baring Island, through the south of Melville Island, Byam Martin's Island, and the whole of Bathurst Island.

From In the Arctic Seas A Narrative of the Discovery of the Fate of Sir John Franklin and his Companions by Francis Leopold McClintock

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