Cone 6 oxidation (first photo): Peppered Plum is a glossy, opaque, burgundy glaze that breaks over texture and develops a warm taupe float; small opaque black crystals are featured with large semi-transparent burgundy crystals.

Cone 10 reduction (second photo): Glaze darkens, and crystals soften. Large crystal shifts to opaque red. Light application recommended.

TIP: SW-113 Speckled Plum is the base glaze. For a lighter crystal effect, apply 1 coat of SW-191 Peppered Plum over 2 coats of SW-113 Speckled Plum. This glaze is stable, even with heavy application. Light application will result in a more homogenous burgundy. Warm taupe float develops and intensifies with glaze thickness.

Stoneware crystal glazes are designed to expand upon the surface with dazzling burts of color. Fired results will vary based on ware’s orientation. Crystals will settle to the bottom of the jar and will need a good mixing prior to initial use. Re-stir between each coat. Stir with palette knife or other unpainted tool. Avoid placing crystals near the bottom third of a vertical piece as they may cause additional movement during firing. Crystals will flow more than the base glaze. While the glaze is wet, use your fan brush to redistribute the crystals to achieve balanced coverage. Over-application or heavy deposition of the crystals can cause pinholing or running. When storing a crystal glaze, you may consider storing upside down to facilitate crystal dispersion on the next use.

Stoneware classic glazes offer the depth, sophistication and reliability to artists working from mid-range to high-fire temperatures. Many glazes will break over textures, revealing secondary colors and shades. Used alone, stoneware glazes produce beautiful color variations. One coat will allow the clay body to show through the glaze and two to three coats deeper the color. The choice of clay body, thickness of glaze application, firing process and temperature will affect the fired finish.

Chips shown are fired flat on a white clay body fired to cone 6 oxidation and cone 10 reduction. The choice of clay body, the thickness of glaze application, the firing process, and temperature will affect the fired results.