Someday I would really love to get this rock identified as to what the fuck it is. Found on the Eel River in California. I've never seen anything like it
It looks like some sort of cursed webbing or bone (I know it is neither). Love my creepy rock.
I am begging you all to please get better bread
Ok the bread is hilarious but might not be that far off. May be this was *inside* a cavity or vein, that first developed the "webbing" of mineral growth, (minerals can grow with highly organic habits and resemble moss, mold etc super close) then incompletely filled with chalcedony. The host rock weathered off and this went down a river for a while. It looks a lot like the incompetent moss agate out here, where you just have the moss mineral tendrils in a cavity without the secondary chalcedony. That'd be my guess.












