The Withlacoochee Rockhounds will present the 35th annual Gem, Mineral and Jewelry Show from 9 a.m. to 5 p.m. today through Sunday at the SNPJ Hall, 13383 County Line Road, Spring Hill. Admission is $3 for adults, $1 for teenagers and free for children 12 and younger. Parking is free. The show features minerals, gemstones, fossils, handcrafted jewelry, lapidary equipment, demonstrations, a gem and mineral auction, and replicas of Aaron's Breastplate and famous diamonds of the world. For information, call James Raffone at (727) 862-4560.