White marble is hard and white, and there is a faint watermark in the stone body, commonly known as sweat line, hence the name white marble. White marble is a rare top stone in ancient Chinese royal architecture and artistic sculpture. Mostly used in the "white marble bowl" products during the Qianlong period.
The function of a cultural relic is inseparable from its shape. Shape is the shape of cultural relics, visible, tangible, vivid and concrete. Function is connotation, attached to the form of cultural relics, and its function is exerted through the form.
Dry curing tire glaze:
The tire soil of high-grade porcelain in official kiln and folk kiln is exquisite, and there are no unbroken porcelain stone particles in the tire bones of small and medium-sized utensils. The fetal bone is white and dense, and there is no flint red at the junction of fetal glaze. The fetal wall is slightly thicker than Yongzheng blue and white.
The glaze color of middle and high-grade porcelain is white and blue, with small bubbles and bright and smooth glaze. Some unsuccessful works are white, gray and blue. Some official kilns and folk kilns are coated with a protective glaze, mostly black, sauce-colored and brown. It is rare to apply protective glaze to the ring foot after humping.
Baidu encyclopedia-Qingganlong blue and white porcelain