Lithophysa Photos (Thundereggs)

Cochise College                                                           
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Roger Weller, geology instructor               


Lithophysa (Thundereggs)
The plural of lithophysa is lithophysae.
last edited:  11/10/16    number of photos:  21
Lithophysae can be either large hollow, bubble like structures                                        
or small spherulites with radial structures that are found in obsidians
or rhyolites. 
If mostly hollow, the lithophysae are known as geodes; if filled in with
agate material, they are known as thundereggs. 

Link to Eibonvale Thunderegg Gallery


lithophysae, cluster

lithophysa, cut:  A

lithophysa, thunderegg:  A  B  C  D  E  F 
lithophysae, polished:  A  B  C  D  E

lithophysa with opal:  A
lithophysae in rhyolite:  A
lithophysae geodes from Arizona:  A (6 views)

Photos are copyright free for non-commercial educational uses. 
Just credit photos to R.Weller/Cochise College.
copyright 2016-R.Weller