Sax Crystal Magic Glazes feature tiny crystals mixed with a speckled base which melt and move during firing, allowing colors to bloom for beautiful, one-of-a-kind designs. Every application and firing will produce different results for unique pottery and ceramic projects. The painting glaze may appear a different color during application and change to the desired look after the required firing in a kiln. Our pottery covering creates multi-colored patterns when fired. Please see individual colors for firing results when fired at cone 6.