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hematite

[ hee-muh-tahyt, hem-uh- ]

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

/ ˈhɛmətaɪt; ˈhɛmətaɪt; ˌhiː-; ˈhiːm-; ˌhɛməˈtɪtɪk /

noun

  1. 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) Also callediron glance
“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

/ 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 .
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Derived Forms

  • hematitic, adjective
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Other Words From

  • he·ma·tit·ic [hee-m, uh, -, tit, -ik, hem-, uh, -], adjective
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Word History and Origins

Origin of hematite1

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

Origin of hematite1

C16: via Latin from Greek haimatitēs resembling blood, from haima blood
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Example Sentences

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.

When the team analysed the dried-up powder, they found it contained hematite, "giving the paste a deep red colour".

From BBC

Researchers led by the University of Cambridge used a technique known as diamond quantum sensing to observe swirling textures and faint magnetic signals on the surface of hematite, a type of iron oxide.

The rocks were rust-red because of the presence of a mineral, hematite, that also accounts for the red color of Mars, he said.

Many of the mountains are flecked in burnt umber, because the dolomite can include hematite, like iron, and therefore rust.

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