"Iridescent colors" refers to colors that appear to change or shift when seen from different angles. They have a shiny or metallic quality that creates a beautiful and vibrant display of different hues. Full definition
But the devices do use an array of artificial microstructures to produce the same kind of iridescent colors as are seen on the wings of tropical butterflies. (scientificamerican.com)
1980s YSL octagon shape crystal with iridescent colors with brushed gold tone necklace and earrings set. (1stdibs.com)
Scales can also be tinted with iridescent colors produced by ripples on the surface, «so you might be able to determine their color from just an impression left by the fossil and not the actual thing,» Parker says. (discovermagazine.com)