Tissue remains are dangling from Martian skull “Alice”

Fig. 1 shows a labeled skull remains (NASA now nicknames the rock
“Alice”). By calling it a skull remains, I was blocked from Mars Rover
Blog and Forum.
http://www.wretch.cc/album/show.php?i=lin440315&b=20&f=1555128094&p=27

Fig. 2: shows a labeled photo of the bottom side of the above skull
remains. Arrows point to tissue remains dangling from the skull
remains.
http://www.wretch.cc/album/show.php?i=lin440315&b=20&f=1555161103&p=68

Which geologist dare say it is a rock with inorganic mineral extruding
from the rock?

Source of Fig. 2:
http://www.flickr.com/photos/hortonheardawho/2663990624/