The Collaborative International Dictionary
Marmoration
Marmoration \Mar`mo*ra"tion\, n. [L. marmoratio.] A covering or incrusting with marble; a casing of marble; a variegating so as to resemble marble. [R.]
Wiktionary
marmoration
n. A covering or encrusting with marble; a casing of marble; a variegated pattern resembling marble.