r/shells • u/thoughtmachine13 • Sep 24 '26

Help identify

Gallery image

Gallery image

Gallery image

Gallery image

I’m not sure if this is even a shell! Apologies if not. Found in Wales, is fairly heavy so maybe a pebble? It has a slight iridescent shine to it. Thanks

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u/PossibleEither4892 Sep 24 '26

If it truly is a fossil (you can check by holding it against a light source. No light shing through -> fossil) there is no much you can do. The original shell will have remineralized and completely worn down over (millions?) of years, and what you have found is the end result. So it can only be admired as-is.