1305 Memorial Ave., West Springfield, Massachusetts 01089, United States

This event, the largest pure show, east of Denver, brings together vendors, miners, artisans, and crafters from around the world - including China, India, Pakistan, Brazil, Morocco, Madagascar and more - who sell everything from 50-cent tumbled stones for the budding rock collector to museum-quality mineral specimens. Over 225 retail and wholesale vendors are on-site who sell mineral specimens, fossils, gemstones, beads, jewelry, meteorites, crystals, geodes, decorator items, and lapidary supplies and equipment. Every child attending the show gets a free mineral specimen, and kids of all ages can purchase an inexpensive geode and watch as it is cracked open to reveal never-before-seen crystals.