Well, dude might get it based on one of the lawyers quoted:
Cheng Jianwei, a lawyer in the northwestern city of Xining, said that since the nugget was sitting uncovered on the ground rather than buried below the surface, the discovery would be outside the legal definition of “inspecting and recovering mining resources,” according to the Beijing Morning Post report.
Either way, he better get a lawyer and at least try. That's worth a lot of fucking money god damn!