Raul León unwraps petrified wood slices for display while workers at the Madagascar Minerals Gem Show, 201 W. Lester St., prepare for the 2019 Tucson Gem, Mineral and Fossil Showcase. Tsiriry Anjarihva sorts hand-carved pieces for the Madagascar Minerals display; 80 percent of those minerals are from Madagascar. Mike Triebold, with Triebold Paleontology Inc., watches as Beau Buffington puts a Ceratopsian in the mouth of a Daspletosaurus, an ancestor of the T-Rex, before the 2017 22nd Street Mineral and Fossil Show. A variety of rose quartz, crystals, tourmaline and red jasper glisten in the sunlight at Jay Gems and Minerals as they are on display at the Riverpark Inn at 350 South Freeway for the upcoming Tucson Gem, Mineral and Fossil Showcase on Jan. 23, 2017. Zoey Petitt selects a bag of green opals to buy at the Madagascar Minerals Gem Show, 201 W. Lester St., on Jan. 23, 2019, in Tucson, Ariz. Eighty percent of the minerals on display at Madagascar Minerals are direct from the company’s mines and factories in Madagascar. The show runs until Feb. 22 from 10 a.m. to 6 p.m. The 2019 Tucson Gem, Mineral and Fossil showcase runs Feb. 2-17. Dan Owens, left, and his dad Mike leaf u...