Judgment day

It was judgment day recently for the U.S. Crystal Growing Competition, and experts gathered at UB to choose the best specimens. Held annually since 2014, the contest challenges K-12 students and teachers to grow the biggest, most beautiful crystals they can using aluminum potassium sulfate (alum), a nontoxic chemical used in water purification. Photos: Meredith Forrest Kulwicki

Published February 3, 2021