%scagliola%

n. [ It. scagliuola, dim. of scaglia. See Scaglia. ] An imitation of any veined and ornamental stone, as marble, formed by a substratum of finely ground gypsum mixed with glue, the surface of which, while soft, is variegated with splinters of marble, spar, granite, etc., and subsequently colored and polished. [ 1913 Webster ]