San Diego Mineral & Gem Society in downtown San Diego's Balboa Park has operated from its 1935-era building adjacent to the Spanish Village Art Center since the society's founding in 1934, occupying a landmark structure built for the California Pacific International Exposition. Its free museum at 1770 Village Place displays mineral, gem, fossil, and lapidary specimens assembled over nine decades through purchases and donations, a public-education mission shared with the performing-arts programming at San Diego Civic Dance Association elsewhere in the park. SDMG's lapidary workshop offers member classes in cabochon cutting, faceting, silver fabrication, lost-wax casting, enameling, bead stringing, rock carving, and sphere making — a hands-on craft curriculum that draws hobbyists and jewelry artisans from across the county. The society sponsors a scholarship fund for students pursuing geological and lapidary studies, and its monthly meetings feature guest lectures from mineralogists, gemologists, and field-trip leaders who organize collecting excursions to desert and mountain sites throughout Southern California. That educational mission parallels the cultural-exchange programming at House of Czech and Slovak Republics in the International Cottages, where both organizations participate in Balboa Park's December Nights festival. The society's most intensive annual production is its gem and mineral show, a multi-day exhibition featuring dealer booths, competitive specimen displays, lapidary demonstrations, and children's education stations that transform the Spanish Village venue into a regional collecting destination.