Post #1832815
2026-04-05 12:36 UTC
@kate @futurebird not a geologist but my guess is that it's a concretion that formed around some polished rod that has since come unlodged. https://en.wikipedia.org/wiki/Concretion
Replies (1)
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@Moss@beige.party 2026-04-05 14:29
@vikxin @kate @futurebird this is exactly my guess too.