I'm certainly glad you brought up that "question", dave.
First look at the geode and I was thinking about Kentucky, too.
But nothing's funner than a good "question".
Now we have been finding crystals all along Tryon Rd for years,
but we have not found ANY on that southern end of it.
Old timers say they were finding smokies and some amethyst in the area
of McGregor Downs and Village 30-40 years ago. But, again, we haven't seen any signs of them.
And we would expect to see the fissure cyrstals we see a little east, not geodes.
Now, just from what I've seen, the soils north of Hwy 64 look like a fissure could pop up anywhere,
but south of 64 you start getting into more Triassic looking sediments.
This area would be good to look closely at on your geologic map, Collin.
As rockytop was saying recently in another thread, there's no telling what you might find
when you start digging a trench here in the eastern piedmont.
It does qualify as "unusual" imo.
So you know what comes next, Where, how deep, in-situ, and are there anymore?