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cummingtonite

[ kuhm-ing-tuh-nahyt ]

noun

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


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Word History and Origins

Origin of cummingtonite1

Named after Cummington, Mass., where it is found; -ite 1

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cummings, e. e.cum new