Celestine on septarias - Rémuzat ("Laget" deposit), Buis-les-Baronnies, Drôme, Rhône-Alpes, France (6.5x6.2cm)
<a href="//commons.wikimedia.org/wiki/User:Archaeodontosaurus" title="User:Archaeodontosaurus">Didier Descouens</a>
<span class="int-own-work" lang="en">Own work</span>