zonochloritehttp://www.oed.com/dictionary/zonochlorite_n%3Ftab%3Dmeaning_and_usezonochlorite, n.
First published 1921; not fully revised

zonochloritenoun

Mineralogy.
  1. 1872–
    Name for a supposed species of mineral from Lake Superior, marked with bands of different shades of green (perhaps the same as chlorastrolite n.).
    1. 1872
      Zonochlorite, a New Hydrous Silicate from Neepigon Bay, North Shore of Lake Superior.
      A. E. Foote in Proceedings of American Association for Advancement of Science (1873) vol. XXI. 65

Originally published as part of the entry for zono-, comb. form

zono-, comb. form was first published in 1921; not fully revised.