| They measure its size and its age by the iridescence of the oil by satellite. |
| Luster, iridescence, and surface blemishes determine price, but so does size, color, shape, and unique matches of two or more pearls. |
| When removed from the water, smelt reflect with a pink, purple or blue iridescence, hence the common name rainbow smelt. |
| Rich copper-red color intermingles with yellow-olive iridescence at the margins. |
| In four large-format paintings, the vestiges of resemblance are traded in for the iridescence of the surface itself. |
| Strontium sulfate is sometimes used to produce iridescence in glass and pottery glazes, and can also be used as a fining agent in crystal glass. |
