Friday, July 11-Sunday, July 13 “Rockhounds” from all over the region are headed for Tulsa and the Rocks and Gems of Indian Territory Convention & Show, a three-day gathering of collectors, vendors and appreciators of everything from trilobite fossils to stunning precious stones. An event of both the Rocky Mountain Federation of Mineralogical Societies and the American Federation of Mineralogical Societies, the convention invites rock and gem hunters to Central Park Hall at Expo Square, 4145 E. 21st St., in Tulsa, where the show gets underway Friday, July 11, from 9 a.m-6 p.m. The show, hosted by the Tulsa Rock & Mineral Society, will consist of vendors, special exhibits, children’s activities and more. The event continues from 9 a.m.-6 p.m. Saturday, July 12, and from 10 a.m.-5 p.m. Sunday, July 13. Single-day tickets are $6, and weekend passes are $10 each. Children 12 and under are free. For more, visit www.exposquare.com.