Bismuth crystal, 61.715 g. Photo taken by: Nikon D40x, AF-S Micro NIKKOR 60mm 1:2.8G ED.
<a href="//commons.wikimedia.org/wiki/User:Micha_L._Rieser" title="User:Micha L. Rieser">Micha L. Rieser</a>
Attribution
<span class="int-own-work" lang="en">Own work</span>