augite

noun

au·​gite ˈȯ-ˌjīt How to pronounce augite (audio)
1
: a usually black or dark green mineral that consists of aluminous pyroxene and is found especially in igneous rocks
2
augitic adjective

Examples of augite in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The desert sand at the test site is composed mostly of grains of quartz and feldspar, with small crystals of calcite, hornblende, and augite mixed in. David Bressan, Forbes.com, 16 July 2025 Basalt is a volcanic rock composed of augite and sometimes plagioclase and magnetite, which says nothing. Louise Erdrich, The New Yorker, 2 Sep. 2019

Word History

Etymology

Latin augites, a precious stone, from Greek augitēs

First Known Use

1802, in the meaning defined at sense 1

Time Traveler
The first known use of augite was in 1802

Browse Nearby Words

Cite this Entry

“Augite.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/augite. Accessed 29 Jul. 2025.

Kids Definition

augite

noun
au·​gite ˈȯ-ˌjīt How to pronounce augite (audio)
: a black to dark green variety of pyroxene

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