Photo of Celestite on Sulfur from Agrigento, Sicily, Italy. It was taken at the Delaware Museum of Natural History.
Photo by and (c)2015 Derek Ramsey (<a href="https://en.wikipedia.org/wiki/User:Ram-Man" class="extiw" title="en:User:Ram-Man">Ram-Man</a>)
<span class="int-own-work">Self-photographed</span>