Ice crystal rainbow
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/95142644@N00">Ruth Hartnup</a> from Vancouver, Canada
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/ruthanddave/2100189455/">Ice crystal rainbow</a>