Kiln Background and the Jiaotai Technique

• The Cizhou Kilns: As the largest folk kiln system in ancient northern China, the Cizhou kilns were celebrated for their free-spirited and unconventional artistic style. Beyond their well-known black-on-white painted wares, their potters also boldly explored a range of difficult ceramic techniques, with marbled ware being one of the most legendary among them.

• The Marbled Ware (Jiaotai) Technique: Also known as "mixed clay" or "marbled-stone pattern," the jiaotai technique originated in the Tang Dynasty. The process involves kneading, folding, slicing, and joining two or more clays of different colors (typically white and brown) to form a specific pattern. This blended clay is then thrown on a wheel to create the vessel. As a result, the pattern is not painted on the surface but is integral to the body, running from the exterior to the interior. Finally, a clear glaze is applied to protect the body and vividly display the marvelous texture of the clay itself.

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Form and Craftsmanship

Measuring approximately 7 x 7 x 4.3 cm, this small and exquisite cup has a flared mouth, curved walls, and a small foot ring, a common form for drinking vessels of the Song period.

• Form: The vessel is well-potted with a flared rim and fluid lines (IMG_6762.jpg, IMG_6764.jpg). Its simple form serves as the perfect canvas for the dramatic, all-over marbled pattern.

• The Pattern: The marbling on this cup is particularly spectacular, exhibiting a "feather pattern" (yumao wen) of sharply contrasting black and white clays in a state of dynamic flux (IMG_6763.jpg, IMG_6769.jpg). This is one of the most classic and aesthetically pleasing types of marbling. The pattern emerges from the center of the interior in a vortex, radiating outwards across the walls like the plumage of a phoenix or the brushstrokes of cursive script, full of rhythm and motion.

• The Base and Body: The most crucial evidence of the technique is found on the base of the cup (IMG_6766.jpg, IMG_6768.jpg). The unglazed foot ring and the recessed base clearly display the same black-and-white marbled pattern as the rest of the vessel, offering definitive proof that this is true jiaotai ware, with the pattern running through the body, rather than a surface decoration.

The Beauty of the Glaze: A Clear Coat for a Textured Body

To highlight the beauty of the marbled body, this cup is covered in a thin, highly translucent glaze. The glaze has a slight yellowish tint and a lustrous sheen. Its function is akin to polishing or waxing a piece of fine wood: it both protects the body and makes the color and texture of the underlying pattern appear clearer, deeper, and more lustrous.