MIT scientists move structural color beyond the lab
A handheld laser system called MorphoChrome paints programmable iridescent structural colors onto holographic photopolymer film for integration into flexible and rigid objects.
What Does It Mean If Beef Is Iridescent, And Is It Safe To Eat? - Tasting Table
Iridescent sheen on whole cuts of beef is a natural, harmless light diffraction; iridescent ground beef can signal bacterial risk and warrants caution.