augitite

noun

au·​gi·​tite

ˈȯjətˌīt,

-gə-,

-əˌtīt

plural -s

: an extrusive porphyritic rock consisting essentially of augite with small amounts of amphibole magnetite or ilmenite and apatite in a glassy groundmass

Word History

Etymology

International Scientific Vocabulary augite + -ite; probably originally formed as German augitit

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