Thulium
Image: <a href="//commons.wikimedia.org/wiki/User:Alchemist-hp" title="User:Alchemist-hp">Alchemist-hp</a> (<a href="//commons.wikimedia.org/wiki/User_talk:Alchemist-hp" title="User talk:Alchemist-hp"><span class="signature-talk">talk</span></a>) (<a rel="nofollow" class="external text" href="http://www.pse-mendelejew.de">www.pse-mendelejew.de</a>) (FAL)
Description
The image displays a large, irregularly shaped mass of sublimed dendritic thulium with a metallic luster, alongside a smaller, smooth cubic block and several smaller dendritic fragments, all exhibiting a silvery-gray color.
Geological Context
Thulium is a rare-earth element that occurs in trace amounts within various rare-earth minerals, primarily in igneous and metamorphic rocks, and is not found as a native metal in nature.
