Dwarves Earth Treasures: Thundereggs, Del Ray Claim, Casas Grandas, Chihuahua Province, Mexico

Del Ray Thundereggs

Del Ray Claim, Casas Grandas,
Chihuahua Province, Mexico

Note: Those thundereggs were mislabeled as "Ascension thundereggs" before
Alberta Ray recently re-discovered the actual location of those thundereggs.

The thundereggs were known some time ago and they were in Peter Ghitney's old collection, but they had been mislabelled as "Ascension thundereggs". Alberta Ray by chance re-discovered the excat same thundereggs at Casas Grandas, Mexico within his Del Ray claim. The thunderegg's rhyolitc shells are reddish with oolitic-like texture on the rough surfaces while the ridges are usually difficult to make out on the surface.
The agate cores tend to be narrow and the typical colors are gray to lavendar. The agates with deep purple, pink, orange, red and black had been found and I got only one with plume inclusion that I know of but I do not know how rare are the ones with plume inclusions.

Click on the pictures to see larger and closer-up pictures.


Typical colors (old stock)	Very few Del Ray thundereggs come with yellow plumes

Deep purple color (old stock)	classic "box" agate core (old stock)

pinkish to ivory colors (old stock)	The agate cores are usually narrow. (old stock)

orange with fine banding (old stock)	With rare Plume inclusions (old stock)