What is Iridescence?
[[File:Soap Bubble - foliage background - iridescent colours - Traquair 040801.jpg|thumb|right|Iridescence in [[soap bubble]]s]] [[File:Female Golden Stag Beetle.jpg|thumb|right|The iridescent exoskeleton of a golden [[stag beetle]]]] '''Iridescence''' is a thing about some surfaces. If a surface looks like its colour changes as the light moves, then it is iridescent. There are many iridescent things in nature. [[Soap bubble]]s, [[butterfly]] wings and [[sea shell]]s, and some [[minerals]] are iridescent. They have tiny structures that affect the light. The physical process which causes iridescence is usually [[interference]]. {{science-stub}} [[Category:light]] [[Category:Color]]