Guan kiln 2

Glaze color: the Northern Song official kiln products glaze color to the moon white for the top, powder green followed by the sky green, cuiqing and the next. Glaze and have ice cracks, plum blossom, crab claw and other small cracks, and with eel blood-like oil spots.

Open piece: divided into large open piece, small open piece, there is a small piece of large ware for the expensive, small piece of large ware for the strange said.

Ripple: A line formed by the continual extension of an open crack that bends or gyrates. The grain state is more active.