Back غبار الألماس Arabic Ledene iglice BS Пăр йĕппи CV Polarschnee German Frostoprismo Esperanto Prismas de hielo Spanish Izotz-prismak Basque گرد الماس Persian Jääneulanen Finnish Poudrin de glace French
| Part of a series on |
| Weather |
|---|
 Weather portal |
Diamond dust is a ground-level cloud composed of tiny ice crystals. This meteorological phenomenon is also referred to simply as ice crystals and is reported in the METAR code as IC. Diamond dust generally forms under otherwise clear or nearly clear skies, so it is sometimes referred to as clear-sky precipitation. Diamond dust is most commonly observed in Antarctica and the Arctic, but can occur anywhere with a temperature well below freezing. In the polar regions of Earth, diamond dust may persist for several days without interruption.