From the Chicago Sun Times an article about the ESCONI show this weekend: 

Kids seem fascinated by rocks and they’ll see plenty of them—many with surprises inside—at the Earth Science Club of Northern Illinois’ Gem-Mineral-Fossil Show, 10 a.m. to 5 p.m. Saturday, March 17, and 10 a.m. to 4 p.m. Sunday, March 18, in Building K, College of DuPage, 425 Fawell Blvd., Glen Ellyn.

“We have buckets full of geodes,” said publicity chairman Donald Cronauer. “We let each kid have one.”…