agatize

English edit

agatize (third-person singular simple present agatizes, present participle agatizing, simple past and past participle agatized)

(transitive) To convert a living thing into the form of an agate; to fossilize.
- 1887 October, Popular Science, volume 31, number 46, page 859:
  polished specimens of jasperized and agatized woods from Arizona