piece of gypsum, plaster of Paris (see Karttunen)
CHĪMALQUĪZA-TL piece of gypsum, plaster of Paris / piedra de yeso [(1)Tp.125]. The derivation of this is opaque. See CHĪMAL-LI, QUĪZ(A). Frances Karttunen, An Analytical Dictionary of Nahuatl (Norman: University of Oklahoma Press, 1992), 52.