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Crystallization of tartrazine. Courtesy of Nikon Small WorldA crystallization of tartrazine (dye primarily used as a food coloring) image won an honorable mention in the 2013 Nikon Small World Photomicrophotography Competition. The 40x differential interference contrast photo was taken by Frederic Labaune of Education Nationale at Auxonne, France.

www.nikonsmallworld.com

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