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epidote

noun
ep·​i·​dote | \ ˈe-pə-ˌdōt How to pronounce epidote (audio) \

Definition of epidote

: a yellowish-green mineral Ca2(Al,Fe)3Si3O12OH usually occurring in grains or columnar masses and sometimes used as a gemstone

Examples of epidote in a Sentence

Recent Examples on the Web

 That’s the iron silicate minerals epidote and chlorite. — Peter Hessler, National Geographic, "World's First Geologic Map Was Far Ahead of Its Time," 25 July 2016

First Known Use of epidote

1808, in the meaning defined above

History and Etymology for epidote

French épidote, from Greek epididonai to give in addition, from epi- + didonai to give — more at date

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