metacryst

[ met-uh-krist ]
/ ˈmɛt əˌkrɪst /

noun Geology.

a crystal formed by recrystallization of minerals in a metamorphic rock.

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Origin of metacryst

First recorded in 1910–15; meta- + (pheno)cryst
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020