Jade has been used in virtually all…

Jade has been used in virtually all periods of Chinese history and generally accords with the style of decorative art characteristic of each period.

Thus, the earliest jades, of the Neolithic Period, are quite simple and unornamented.

During Neolithic times, the key known sources of nephrite jade in China for utilitarian and ceremonial jade items were the now depleted deposits in the Ningshao area in the Yangtze River Delta (Liangzhu culture 3400–2250 BCE) and in an area of the Liaoning province in Inner Mongolia (Hongshan culture 4700–2900 BCE).

Dushan Jade was mined as early as 6000 BCE.