(s)glassyresembling glass in smoothness and shininess and slickness“the glassy surface of the lake”, “the pavement was...glassy with water” (Willa Cather)
(s)glassy, vitreous, vitrified(of ceramics) having the surface made shiny and nonporous by fusing a vitreous solution to it“glassy porcelain”, “hard vitreous china used for plumbing fixtures”