py·​rox·​ene | \ pī-ˈräk-ˌsēn How to pronounce pyroxene (audio) , pə- \

Definition of pyroxene

: any of a group of igneous-rock-forming silicate minerals that contain calcium, sodium, magnesium, iron, or aluminum, usually occur in short prismatic crystals or massive form, are often laminated, and vary in color from white to dark green or black

Other Words from pyroxene

pyroxenic \ ˌpī-​ˌräk-​ˈsē-​nik How to pronounce pyroxene (audio) , pə-​ , -​ˈse-​ How to pronounce pyroxene (audio) \ adjective
pyroxenoid \ pī-​ˈräk-​sə-​ˌnȯid How to pronounce pyroxene (audio) , pə-​ \ adjective or noun

Examples of pyroxene in a Sentence

Recent Examples on the Web Maaz, which is on top and thus probably younger, has a composition similar to most basaltic lava flows — full of minerals known as pyroxene and plagioclase but with little or no olivine. New York Times, 27 Apr. 2022 The analysis revealed large olivine crystals surrounded by pyroxene crystals, both of which pointed to the fact that the rock came from volcanic lava flows. Ashley Strickland, CNN, 15 Dec. 2021 Basaltic lava has a low silica content and is composed predominantly of plagioclase, amphibole, and pyroxene. David Bressan, Forbes, 18 May 2021 The upper mantle is composed of silicates common in magmatic and metamorphic rocks, like olivine, pyroxene, and garnet. David Bressan, Forbes, 4 Mar. 2021 Made of minerals such as olivine and pyroxene, and sometimes glass, chondrules themselves come in a variety of shapes, sizes and compositions—often containing a glittering array of crystals. Jonathan O'callaghan, Scientific American, 8 Dec. 2020 Driving around Von Kármán, the Yutu-2 rover found material that, according to its spectrometer, looked to contain at least two minerals: low-calcium pyroxene and olivine. National Geographic, 15 May 2019 Models and some recent finds suggest the upper zones of the mantle are composed of the minerals pyroxene and olivine. National Geographic, 3 July 2019 The water content of minerals like pyroxene, known to be incredibly dry, were oddly wet in Bermuda’s core samples. Robin George Andrews, National Geographic, 17 May 2019 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'pyroxene.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of pyroxene

1800, in the meaning defined above

History and Etymology for pyroxene

French pyroxène, from Greek pyr- + xenos stranger

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The first known use of pyroxene was in 1800

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Dictionary Entries Near pyroxene

pyrotritaric acid


pyroxene group

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Cite this Entry

“Pyroxene.” Dictionary, Merriam-Webster, Accessed 30 Sep. 2022.

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