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Found a fossil
(lemmy.today)
A place for:
Minerals are cool, too.
Be gneiss to each other
Please use posts for your rocks. Feel free to add more pictures and links to articles in the post text.
Might have been part of a belemnite? At least looks a bit like one.
Where I come from you can find a lot of those, besides ammonites.
But embedded in limestone...
it is limestone! tested it with acid. weird color for it though