Mercury - Interior and Evolution

Density:
(examine uncompressed density -- that is, the density of an object after the compressional effects of gravity are taken out)
 
 

(gm/cm3)
Mercury
Moon 
Earth 
Average  Density
5.4
3.3
5.5
Uncompressed Density
5.3
3.3
4.1

Clues to the interior:

Possible Evolutionary History

Discussion: How is this like the Moon? How is it different?