If stones are picked up on barren hills and beaches owned by others, the obligee has the right to stop them because they belong to natural fruits; Otherwise no one else has the right to stop it. If you go to a place where mining and manual excavation are prohibited by the state. The jade you got should be handed in. And pay legal responsibility.
Jade is a mineral. There are two kinds of jade: soft and hard. Usually, jade refers to nephrite. It belongs to one of the most common jewels. According to "Tengyue Local Records" written by Qing Jinshi Cun Kaitai, "Tengyue is a collection of jade articles, made into utensils and sold to various provinces in Yunnan. Top grade jadeite is mostly sent to eastern Guangdong, Shanghai, Fujian, Zhejiang and Kyoto.