The best show to hit Plano is "Texas Mineral and Fossil Show".
Vendors from the US will be selling minerals, fossils, gemstones, & jewelry. Family fun event, free rocks for kids. On the first day, the promoter is giving away a $100 dealer voucher in a drawing to be spent for your favorite rock, fossil, gemstone, or jewelry. Need to be present to win!
Free admission and free parking.