Road runner: City, PAG both deploy shuttles for gem show

City-sponsored gem show shuttles are back. The Tucson Gem, Mineral and Fossil Showcase brings thousands of visitors to Tucson - and thousands of extra cars, too.

Mushroom cloud 'curiosity' came from Manhattan Project

Tom Lindgren, right, and his longtime colleague and friend Jeff Parker talk about the unique 7-inch-thick leaded glass blast window on display ad Lindgren's Mineral and Fossil Co-op, 1635 N. Oracle Road. The 54-by-34-inch rectangle weighs 800 pounds.

Mushroom cloud 'curiosity' came from Manhattan Project

Glass sculptor Kent Lauer depicted a mushroom cloud using leaded glass reclaimed from a Manhattan Project site. Lead protected workers from radiation.

Mushroom cloud 'curiosity' came from Manhattan Project

Tom Lindgren sells decorative art pieces quarried from ancient lake beds where fish, animals and plants were encased in calcium carbonate 50 million years ago - give or take a couple of thousand millenniums.