It took years of experimentation to create the five shades of glaze, each of which contains a different amount of finely ground ash. The tiles, which were developed in collaboration with the material ...

These gorgeous tiles are glazed in volcanic ash from Mount Etna It took years of experimentation to create the five shades of glaze, each of which contains a different amount of finely ground ash.

“I spread out a tarp in the backyard and collected the ash,” she said. As an avid potter, she was always experimenting with glazes. “I knew you could make glaze from wood ash; why not volcanic ash?” ...