Rare* Fissured Inverse Thunder Egg

Whereabouts

Of all places, I collected this at BBQ World in Tucson, Arizona.  I was in the showroom, and noticed it next to a fake T-bone steak and a fake corn-on-the-cob.  What such a beautiful structure was doing there, also on the grills I’ll never know.  There were 7 others on grills in the showroom.  I’m glad that one of the salesperson was receptive to my having one for my collection, my teaching, and of course upcoming comprehensive oral exams. 

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*Some might say "medium rare"

Age & Formation
Very recent.
QTVR