<p>cross section: human pineal gland
magnification: 100x  phase contrast 
</p>
hematoxylin eosin stain
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/146824358@N03">Berkshire Community College  Bioscience Image Library</a>
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/146824358@N03/46491414525/">Brain Sand in Older Human Pinealocyte by Phase Contrast</a>