Raku Teabowl

This teabowl has beautiful copper red flashings all around the outside of the bowl. The inside was glazed with a Clear Crackle Glaze. The outside was first glazed with the Clear Crackle and then glazed again with a Turquoise Crackle.

I think the clear glaze I use is Called Soldner's Clear Crackle. 80% Gerstley Borate, 20% Neph. Sy.

For the Turquoise Crackle glaze I just added 10% Zircopax and 2% Copper Carbonate to the Soldner's Clear.

Raku Tea Bowl

Ferguson's Turquoise Crackle Glaze. Fired in heavy reduction during the last 10 minutes of firing. The turquoise has a nice soft crackle appearance and the copper red metallics are hard, brilliant, and shiny. As with most my tea bowls, the dimensions are approximately
3-3/4 inches tall by 4-3/4 inches wide.

Raku Tea Bowl

Turquoise Raku.
After about a dozen firings I am finally learning how to fire my new kiln and am very happy with the results I am getting. This turquoise glaze has become one of my favorites because it can produce a lot of different colors, depending on how the kiln is fired. Under normal firing conditions this glaze will always come out a blue turquoise. When the kiln is heavily reduced near the end of the firing the glaze will yield a crackled turquoise with multicolored metalic flashes. When the kiln is fired in heavy reduction throughout the firing process the glaze will be a shiny metalic copper, so shiny you can see your reflection in the glaze. I have also had this same glaze turn out the most beautiful oxblood red I have ever seen. Although, I have only been able to get that red once. But, I'm still trying.