| Renaissance artists used paints and glazes that got their appealing color and iridescence from nanoparticles. |
| Helma offers an alternative to flowers: a stylised floral motif with refinement, playing on the iridescence. |
| Females are drabber, with subtle iridescence on overall grayish-brown bodies, spotted flanks, and a white teardrop surrounding each eye. |
| Luster, iridescence, and surface blemishes determine price, but so does size, color, shape, and unique matches of two or more pearls. |
| Rich copper-red color intermingles with yellow-olive iridescence at the margins. |
| When removed from the water, smelt reflect with a pink, purple or blue iridescence, hence the common name rainbow smelt. |
