Square Plate M

Stone Burst

Stone Burst refers to small spots where feldspar contained in the clay bursts during firing and becomes visible on the surface. If you notice tiny areas along the rim that look slightly chipped, these are places where small stones have burst and disappeared in the heat of the kiln. These natural marks are a characteristic feature of pottery and do not affect its use or quality.

Feldspar Particles

Shigaraki clay contains a high amount of feldspar. When the kiln temperature reaches around 1250–1280°C, the feldspar melts and forms small, white, glassy specks on the surface of the clay. These specks are affectionately called “kani-no-me”—literally “crab’s eyes”—for their delicate, dotted appearance. They are a natural feature of Shigaraki ware, reflecting the character of the clay and the heat of the kiln.

Color Variation

Koshigaraki pieces use a traditional glaze made from natural materials, giving them a wide and organic range of colors. Through yōhen—the transformation that occurs in the kiln’s flame—layers of color overlap to create subtle, one-of-a-kind patterns and a deeply expressive surface. Each piece reflects the quiet beauty born from clay and fire.