Layered yttrium hydroxide
<a href="//commons.wikimedia.org/w/index.php?title=User:Yaprynsev&amp;action=edit&amp;redlink=1" class="new" title="User:Yaprynsev (page does not exist)">Yapryntsev A.D., Baranchikov A.E. and Ivanov V.K.</a>
CC BY 4.0
<span class="int-own-work" lang="en">Own work</span>