Except as otherwise provided in Section 10131.45 and in this chapter, it is unlawful for any person to engage in the following businesses as a principal unless the person is licensed as a mineral, oil, and gas broker or a real estate broker:
(a)
Except as provided in subdivision (d) of Section 10502, buying or leasing, or taking an option on mineral, oil, or gas property for the purpose of sale, exchange, lease, sublease, or assignment of a lease of the property or any part of the property.(b)
Offering mining claims or any interest therein for sale or assignment.
Source:
Section 10500.5, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=BPC§ionNum=10500.5..