The Palomar Gem and Mineral Club is holding a Spring Show this weekend, Mar 24 and 25. Free admission and the Treasure Seekers will have a display there. The Escondido-based club holds its annual spring show with displays and sales of gems, minerals, fossils and jewelry along with children’s activities and a raffle; 10 a.m. to 5 p.m. And 10 a.m. to 4 p.m. Sat, March 25. Antique Gas & Steam Engine Museum, 2040 N. Santa Fe Drive, Vista.