Photo was made on Cracow University of Technology using SEM Microscope from JEOL company. The colorful maps of elements were made by EDS technique and applied on SEI image.
<a href="//commons.wikimedia.org/w/index.php?title=User:Naje%C5%BCony&amp;action=edit&amp;redlink=1" class="new" title="User:Najeżony (page does not exist)">Jan Ozimek</a>
CC BY 4.0
<span class="int-own-work" lang="en">Own work</span>