Chinese jade

Chinese jade refers to the various minerals mined and carved in China since the Neolithic period. It serves as the primary hardstone used in Chinese sculpture. While bright green jadeite is well-known in Europe, most Chinese history focuses on nephrite. Within this category, white "mutton-fat" nephrite is the most highly prized variety.

Jade is valued for its extreme hardness, durability, and musical qualities. Because of its translucent colors, it is deeply connected to Chinese ideas of the soul and immortality. In many traditions, it is viewed as a symbol of heaven, often paired with gold.

Working with jade requires a specific process called the abrasion method. Because jade is so dense and tough, it cannot be easily cut like softer stones. Instead, a worker must use an object with a higher abrasive factor to wear the jade down. In ancient times, craftsmen used quartz to shape the stone. During the Song dynasty, a substance called "red sand" with a hardness of 7.5 became the primary tool.

By 1939, carvers in Peking used six different abrasives. These included almandine garnet, corundum, carborundum, diamond, and a mixture of carborundum with calcareous silt. This slow wearing process allows for incredible detail despite the stone's strength.

Early jade production is categorized by several distinct Neolithic cultures. The Liangzhu culture, located in the Lake Tai District, produced small items like perforated discs for necklaces. The Yangshao culture also left evidence of jade processing workshops in Henan province. These workshops were quite large, with two sites covering more than 120 square meters each.

The Longshan culture, appearing around 2500 BCE on the east coast, crafted ritual tools like axes and chisels. They even used a special carving technique to create fine raised relief on anthropomorphic images. These early objects were often larger than normal tools and likely represented political or religious authority.

Another important group was the Hongshan culture near the modern northeastern border of China. They were known for making pendants and large C-shaped ornaments. Their carvings often depicted realistic figures such as fish, turtles, cicadas, and owl-like birds.

These cultures used different sources of nephrite. The Liangzhu used deposits in the Yangtze River Delta, while the Hongshan used areas in Liaoning province. These early traditions established jade as a medium for expressing spiritual and social structures.

Specific ritual shapes emerged that held deep cosmic significance. The bi is a circular disk with a hole, which later literature associated with the sky. The cong is a vessel that is square on the outside but circular on the inside, representing the earth.

During the Han dynasty, jade use reached a peak in funerary customs. Royal families were buried in jade burial suits sewn together with gold thread. People believed these suits would preserve the body and the souls attached to it. Jade was also used in medicine, where spoons and spatulas helped transfer its virtues to healing compounds.

Historically, jade has been sourced from various regions, including the northwestern province of Xinjiang. Collection often takes place in rivers like the Yarkand, the White Jade (Yurungkash), and the Black Jade (Karakash) Rivers.

In the past, the Kingdom of Khotan sent yearly tributes of white jade to the Chinese Imperial court. This jade was considered more valuable than gold or silver. Over time, the language itself grew to reflect this value. The Chinese word "yù" means jade, but it also describes gems, beauty, and courtesy.

The "jade radical" is even used in writing to denote things that are precious.

Jade remains a vital part of Chinese artistic and cultural identity. It has been used for writing materials, such as rests for calligraphy brushes. It was even used as mouthpieces for opium pipes because people believed breathing through jade could promote longevity.

Even during the Qing dynasty, jade remained central to imperial life. For example, the Kangxi Emperor commissioned distinctive pairs of jade lions or dogs.

From Neolithic tools to imperial art, jade continues to represent the progression of Chinese culture.