cummingtonite

[ kuhm-ing-tuh-nahyt ]
/ ˈkʌm ɪŋ təˌnaɪt /

noun

an amphibole mineral, magnesium-iron silicate, similar in composition to anthophyllite but richer in iron.

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Origin of cummingtonite

named after Cummington, Mass., where it is found; see -ite1

Words nearby cummingtonite

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020