Programs that provide organized opportunities for individuals to pursue their interest in the science that deals with the physical history of the earth, the rocks of which it is composed and the physical changes which the earth has undergone or is undergoing, often through the medium of a club or society that is under the leadership of people who are knowledgeable in the subject. Activities may include lectures, slide shows or other presentations that provide information about different aspects of geology; field trips to sites which illustrate different rock formations or geological processes; and opportunities for people who collect rocks, fossils or seashells to exchange information about their collections and make further acquisitions. Included are Internet-based virtual clubs, WebRings devoted to the subject and clubs where members meet face-to-face.
Field trips to locations related to gems, minerals, rocks. Lapidary hobbies and instruction. Programs and guest lecturers on Geology, silversmithing, faceting, mineral collecting and identification.