Bournonite from Les Malines mine, Gard, France. Gallery of Mineralogy and Geology of the French National Museum of Natural History in Paris.
<a href="//commons.wikimedia.org/wiki/User:Jastrow" title="User:Jastrow">Marie-Lan Taÿ Pamart</a>
CC BY 4.0
<span class="int-own-work" lang="en">Own work</span>