David Tibbits competed in the Tucson Gem and Mineral Show and presented multiple exhibits. The first exhibit to highlight is "Earth's Timekeepers," which showcased U/Pb geochronology and the minerals that can be dated.
David Tibbits competed in the Tucson Gem and Mineral Show and presented multiple exhibits. The first exhibit to highlight is "Earth's Timekeepers," which showcased U/Pb geochronology and the minerals that can be dated.