: a usually greenish mineral that is a complex silicate of magnesium and iron used especially in refractories compare peridot

Examples of olivine in a Sentence

Recent Examples on the Web
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For instance, in this image, the blue- and green-toned rocks could be full of minerals like pyroxenes and olivine, according to scientists analyzing the image. — Chelsea Gohd, Space.com, 2 Nov. 2026 Deep underground, groundwater comes into direct contact with iron-rich minerals such as olivine, triggering a chemical reaction called serpentinization. — Mrigakshi Dixit, Interesting Engineering, 29 Sep. 2026 The researchers used the acid as a leaching agent for olivine, a common greenish mineral containing small amounts of nickel. — New Atlas, 27 July 2026 Although olivine occurs on Earth’s surface as the green gemstone peridot, ringwoodite is typically blue and occurs deep within Earth, at depths of about 410 to 660 km (250 to 410 miles) in the mantle transition zone, just above the lower mantle. — Divya Dubey, Encyclopedia Britannica, 31 Mar. 2026 See All Example Sentences for olivine

Word History

Etymology

German Olivin, from Latin oliva

First Known Use

1794, in the meaning defined above

Time Traveler
The first known use of olivine was in 1794

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Cite this Entry

“Olivine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/olivine. Accessed 5 Nov. 2026.

Kids Definition

: a usually greenish mineral that is a silicate of magnesium and iron

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