Svetlana Kazina recently captured a series of stunning iridescent clouds above Belukha mountain, which is Siberia’s highest peak (4,506 metres/14,783ft). Svetlana lives in the Altai Mountains which is a mountain range in Central and East Asia where Russia, China, Mongolia, and Kazakhstan come together.
Cloud iridescence or irisation is a colorful optical phenomenon that occurs in a cloud and appears in the general proximity of the sun or moon. The colors resemble those seen in soap bubbles and oil on a water surface. Check out Wikipedia for more information.