Here are the suggestions:
1. Do your homework and cool down. Do you know how deep of the mineral?
2. Make sure if it is a discovered mineral. In TX, there are lots of oil well interests / right for sale.
3. Make sure if it is government / feudal land. Sometimes, there are strong restrictions in public lands.
4. Discuss with your professor / advisor. It is a big plus if your advisor can join the team.
5. Consult an attorney with questions your have (such as if the school owns the discovered rights)
6. Set up a corporation and clarify the shares and responsibilities (don’t worry about your visa)
7. Found VC / investors to fund your project
8. Consult a real estate broker. Mostly likely, you may have to buy the land instead of lease…..
It will be more complicated than these.