Sugar effect Granules are products of a variety of glazes. They are compact and round in form. They are sufficiently strong to be handled and used. As is the case with granito, granules are manufactured in standardised particle-size ranges and improve both appearance and physical properties of the piece to which they are applied. The most usual sizes offered are inferior to 2, 1.5, 1, 0.75 and 0.5mm.