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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-, ˌhɛməˈtɪtɪk /

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  
/ hēmə-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:

Analyst Mitch Ryan said the review, which includes hematite mining and the Iron Bridge operation, is a welcome development.

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

Brown hematite, oblong, with small groove around the top, beautiful polish, exceedingly rare.

From American Antiquities Auction Catalogue, January 8, 1898 by Norman, Wm. B.

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