ripidolite

[ ri-pid-l-ahyt, rahy- ]

noun

1. a mineral of the chlorite group, essentially hydrated magnesium and aluminum silicate with some ferrous iron.

Word History and Origins

Origin of ripidolite¹

1840–50; < German Ripidolith < Greek rhīpid- (stem of rhīpís ) fan + -o- -o- + German -lith -lite