Raku: Japanse pottery made for the tea ceremony, usually of an irregular shape and texture. It was fired at a low temperature and covered with a thick, usually dark, colored glaze. The name derives from the Japanese word 'enjoyment', which was adopted as a seal by the family of potters who first made this ware, circa 1580. (Michael Clarke)
These beautiful Raku tiles were made by Spokane artist, Chris Nylander. She also makes raku sculptures of women's faces that are breathtaking. I bought these at a yearly show called 'Inland Crafts' (formerly Inland Craft Warnings).