Cone 6 (first image) Blue Opal is a medium blue semi-transparent to fully opaque gloss glaze. Thinner applications create a transparent blue haze; thicker coatings produce an
opaque finish. Surface textures can cause the glaze to collect and produce streaks of greyish blue.

Cone 10 (second image): Becomes more transparent. Can produce red mottling in a heavy reduction.

TIP: Light applications on brown and buff bodies will produce a transparent green-blue gloss finish. Thinner application will provide a glossy transparent finish. Thicker application will provide light blue floating. Surface decoration will be visible under the glaze, but if you apply the glaze thick, it could blur your image.

Stoneware classic glazes offer the depth, sophistication and reliability to artists working from mid-range to high-fire temperatures. Opals are beautiful glazes for dinnerware due to its glossy, smooth finish. This glaze is great on texture and will break over high texture and pool into.

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.