Robin's Egg Teapot 1Porcelain, hand thrown, miniature teapot with a "Robin's Egg" crystalline glaze. This teapot has been "etched" in sodium bisulfate to turn the background from green to white. Every piece is thrown and trimmed on the wheel using Coleman porcelain. This teapot was fired in an oxidation atmosphere in an electric kiln. Crystal glazes are fired to cone 10 (2350 F) until they turn molten and begin to run down the surface of the pot. The temperature is then