1. The jade with the highest yield in Chinese mainland is serpentine jade, which is produced in more than 20 provinces in China.

2. And the distribution is extremely uneven.

3. So there may be jade in ordinary mountains, but there will be much more jade in the producing area.

Jade is a mineral.

There are two kinds of jade: soft and hard. Usually, jade refers to nephrite.

6. It belongs to one of the most common jewels.

7. According to "Tengyue Local Records" written by Qing Jinshi Cunkaitai, "Tengyue was collected by jade workers, made into utensils and sold in Yunnan provinces.

8. Most of the top jadeites are sent to eastern Guangdong, Shanghai, Fujian, Zhejiang and Kyoto.