Simple past tense and past participle of opalize.(verb)
Converted into a form of opal or chalcedony(adjective)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "opalized" in a sentence
"Outside, where the broad Channel appeared, a berylline and opalized variegation of ripples, currents, deeps, and shallows, lay as fair under the sun as a New Jerusalem, the shores being of gleaming sand."
"This tree, four feet in diameter, of opalized wood, stands upright on the left side of the tunnel."
"The green opalized kind is the most prized, and four pounds was demanded for a pair of pendants of this colour for earrings."