Cong (jade)
Encyclopedia
A cong is a form of jade
Jade
Jade is an ornamental stone.The term jade is applied to two different metamorphic rocks that are made up of different silicate minerals:...

 artifact from ancient China. The earliest cong were produced by the Liangzhu culture
Liangzhu culture
The Liangzhu culture was the last Neolithic jade culture in the Yangtze River Delta of China. Its area of influence extended from around Lake Tai north to Nanjing and the Chang Jiang, east to Shanghai and the sea, and south to Hangzhou...

 (3400-2250 BC); later examples date mainly from the Shang
Shang Dynasty
The Shang Dynasty or Yin Dynasty was, according to traditional sources, the second Chinese dynasty, after the Xia. They ruled in the northeastern regions of the area known as "China proper" in the Yellow River valley...

 and Zhou
Zhou Dynasty
The Zhou Dynasty was a Chinese dynasty that followed the Shang Dynasty and preceded the Qin Dynasty. Although the Zhou Dynasty lasted longer than any other dynasty in Chinese history, the actual political and military control of China by the Ji family lasted only until 771 BC, a period known as...

 dynasties.

In form, a cong is a tube with a circular inner section and squarish outer section. The outer surface is divided vertically or horizontally such that the whole defines a hollow cylinder embedded in a partial rectangular block. Proportions vary - a cong may be squat or taller than it is wide. The outer faces are sometimes decorated with masklike faces, which may be related to the taotie
Taotie
The Taotie is a motif commonly found on ritual bronze vessels from the Shang and Zhou Dynasty. The design typically consists of a zoomorphic mask, described as being frontal, bilaterally symmetrical, with a pair of raised eyes and typically no lower jaw area...

designs found on later bronze vessels.

Although generally considered to be a ritual object of some sort, the original function and meaning of the cong are unknown. Later writings speak of the cong as symbolizing the earth, while the bi
Bi (jade)
The bi is a form of circular jade artifact from ancient China. The earliest bi were produced in the Neolithic period, particularly by the Liangzhu culture . Later examples date mainly from the Shang, Zhou and Han dynasties. They were also made in glass.-Description:A bi is a flat jade disc with a...

represents the heavens. The square represents the earth and a circle represents the heavens.
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