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Find 471,223 Rainbow Clouds stock images in HD and millions of other royalty-free stock photos, 3D objects, illustrations and vectors in the Shutterstock collection. Thousands of new, high-quality pictures added every day.. In the depths of winter, when conditions are just right, glittering clouds turn the polar skies into a spectacle of colour. Rainbow clouds - also known as 'nacreous' or 'mother-of-pearl' clouds after their resemblance to the iridescent shells of some molluscs - are an extremely rare.

Cloud iridescence is a rare optical phenomenon in which sunlight interacts with tiny particles in clouds, creating rainbow-like colors that turn the sky into a striking display. Cloud iridescence or irisation is a colourful optical phenomenon that occurs in a cloud and appears in the general proximity of the Sun or Moon. The colours resemble those seen in soap bubbles and oil on a water surface.