Source : Webster's Revised Unabridged Dictionary (1913)

Jasperize \Jas"per*ize\, v. t. [Usually p. p. {Jasperized} (?).]
   To convert into, or make to resemble, jasper.

         Polished specimens of jasperized and agatized woods.
                                                  --Pop. Sci.
                                                  Monthly.