Emerald BottlePorcelain, hand thrown, miniature bottle with an emerald green crystalline glaze. As a final step, the piece is soaked in acid for 24 hours to dramatically lighten or "etch" the glaze. Every piece is thrown and trimmed on the wheel using Coleman porcelain. This bottle 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