The American Institute of Minerals Appraisers (AIMA) ...
... is a non-profit association dedicated to the advancement of the appraisal profession in general and that of the appraisal of minerals in particular.
In the furtherance of these goals, the Institute has established professional qualifications for minerals appraisers and certifies the qualifications of individual Member appraisers to the public.
Further, the Institute endeavors to promote high standards of ethical conduct amongst its Members and within the profession of appraisal of minerals.