prochlorite

[proh-klawr-ahyt, -klohr-]

noun Mineralogy.

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

Origin of prochlorite

First recorded in 1865–70; pro-¹ + chlorite¹

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018