Native graphite from Chardonnet in Haute-Savoie, France, given by Mr Gaultier of Chambéry. Gallery of Mineralogy of the Muséum National d'Histoire Naturelle 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>