Thunder Eggs span the imaginable range of color and design. Depending on the region, the colors can be subtle to wild and have large masses of variation or very intricate, lacy inclusions.


The hunt took us to the high desert of Oregon. If we hadn't found any, the trip was so spectacularly beautiful that it would have been well worth it for just the eyeful. For this batch, we went to the Owyhee Desert area to hunt. 



A pot of gold? Perhaps a camp pot of Thunder Egg and Rhyolite 'Shells'. Thunder Egg soup anyone? What is that Thunder Egg stuff anyhow? How about an 'Ash Bubble' filled with Agate or Jasper. 

I have a few Thunder Eggs from the Madras, Oregon area and thought I was looking for something similar. I was literally walking over the top of the Thunder Eggs for a little while before a cracked one smiled up at me and gave itself away.




The outside 'shell' is a confetti-like riot of speckled Rhyolite, from the inclusive minerals, representing most of the spectrum. The ash material itself is much lighter than the muddy looking Madras material I'd seen before, grey-ish blue  to white, and it has so much more silicates or gypsum showing that it throws light like a disco ball. 

The inside can be filled with clear or white agate as well as many colors of jasper or common opal material. From that pot, I have found white, clear, yellow, orangy-red, to pinkish. I only scored small eggs but have a fair amount of larger eggs that have a 'botryoidal' or grape-lump type center that is agate over the top of the Rhyolite and otherwise hollow. 

The colors and the ways that the agate or silicates work their way into the 'ash bubble' form are dynamic. In some, large voids are filled with agates or jaspers tracking the horizon line. In others, small openings are filled that create a design like a road map.   


 To Be Continued...
Daily Visions April-14-2017
Featured Artist April-14-2017