prochlorite

[ proh-klawr-ahyt, -klohr- ]
/ proʊˈklɔr aɪt, -ˈkloʊr- /

noun Mineralogy.

a dark green member of the chlorite group, usually foliated.

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Origin of prochlorite

First recorded in 1865–70; pro-1 + chlorite1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020