Cone 6: Blue Splatterware is a white, semi-matte glaze that contains a blue crystal. As the crystal melts it creates small blue blooms that cause the glaze to resemble the look of 19th century enamelware. Cone 10: Crystals become less defined. TIP: SW-141 White Matte is the base glaze. For a lighter crystal effect, you may try applying two coats of SW-141 White Matte with a third coat of SW-152 Blue Splatterware.