Granite Sheet Glass is a randomly embossed rough surface resembling stone. The pattern is formed into the sheets during the forming process. Although it will melt flat in most firings, the pattern can be retained by highlighting with colored Frit powder or mica prior to firing. Uroboros fusible iridized coatings on Granite will also retain the image of the texture after fusing. This effect is especially striking when fusing iridescent with the textured side down on a smooth surface.  Looking for a complete sample set or kit.