The Collaborative International Dictionary
Porphyrize
Porphyrize \Por`phy*rize\, v. t. [Cf. F. porphyriser, Gr. ? to purplish.] To cause to resemble porphyry; to make spotted in composition, like porphyry.
Wiktionary
porphyrize
vb. (context transitive English) To cause to resemble porphyry; to make spotted like porphyry.