1
: a usually black or dark green mineral that consists of aluminous pyroxene and is found especially in igneous rocks
2
: pyroxene
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Basalt is a volcanic rock composed of augite and sometimes plagioclase and magnetite, which says nothing.
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Louise Erdrich, The New Yorker, 2 Sep. 2019
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Louise Erdrich, The New Yorker, 2 Sep. 2019
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“Augite.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/augite. Accessed 30 Dec. 2024.
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augite
noun
au·gite
ˈȯ-ˌjīt 
: a black to dark green variety of pyroxene
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