Lithophysa (Thundereggs) Photos
Cochise College
Photos of Rocks       
Igneous Rocks
Geology Home Page
Roger Weller, geology instructor                       

wellerr@cochise.edu    copyright 2011

 

lithophysa, cut to show structure

This thunderegg has been cut in half to show the internal structure.
Typically, the internal structure of a lithophysa appears to have undergone
shrinkage, creating open gaps that are then filled with agate material.

 


lithophysa                                                                                                                                           1

Photo is copyright free for non-commercial educational uses. 
Just credit photo to R.Weller/Cochise College.