Rappelling into old mines. Crawling through caves of wonder. Chasing meteorites around the world. • Treasure hunting still happens. What you see in displays and for sale at the Tucson Gem, Mineral and Fossil Showcase in the next two weeks is only part of the story. • Sixty years ago the Tucson Gem and Mineral show started it all. Now at more than 40 shows across Tucson, collectors and dealers from around the world will gather to tell stories and show their bounty — souvenirs from the hunt.