hematite

noun

he·​ma·​tite ˈhē-mə-ˌtīt How to pronounce hematite (audio)
: a reddish-brown to black mineral consisting of ferric oxide, constituting an important iron ore, and occurring in crystals or as earthy red ocher
hematitic adjective

Examples of hematite in a Sentence

Recent Examples on the Web Areas of intense hematite, goethite and manganese wad are widespread, associated with better Au and Ag values. Kansas City Star, 10 Apr. 2024 The custom dress embodied the brand’s classic style and staple pattern — stripes — which, composed entirely of black hematite crystals, sparkled under the bright Vegas lights. Bailey Richards, Peoplemag, 6 Nov. 2023 The pigment minerals held no surprises: the red was hematite and the black was basically manganese dioxide. Roger Lewin, Discover Magazine, 11 Nov. 2019 Fahrenheit, yellow ochre’s crystal structure changes and the goethite can transform into hematite, or red ochre. Gemma Tarlach, Discover Magazine, 15 Mar. 2018 Upon microscopic imaging, scientists conclude that the rock contains the mineral hematite, which is often formed in water (although it can also be formed by volcanic processes). Aline Reynolds, Discover Magazine, 19 Feb. 2010 Made of white jade, amazonite, blue moonstone and hematite, this durable bracelet is made of all real crystals and is handcrafted in Arizona. Cailey Lindberg, Good Housekeeping, 18 Oct. 2022 More than 12,000 years ago, the first inhabitants of present-day eastern Wyoming came across a fruitful deposit of hematite, or red ocher, and began digging out the valuable, blood-red mineral using animal bones and antlers. Sarah Kuta, Smithsonian Magazine, 24 May 2022 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

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'hematite.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1540, in the meaning defined above

Time Traveler
The first known use of hematite was in 1540

Dictionary Entries Near hematite

Cite this Entry

“Hematite.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hematite. Accessed 23 Jul. 2024.

Kids Definition

hematite

noun
he·​ma·​tite ˈhē-mə-ˌtīt How to pronounce hematite (audio)
: a mineral that consists of an oxide of iron, is an important iron ore, and is found in crystals or in a red earthy form

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