To my pretty ignorant eye, it kinda looks like shale that got fractured in sedimentary rock and then stuck there. But without actually feeling it, i really wouldn't know for sure It looks very cool.
@robingoodfellow different types of rock feel different. Shale is a softer type of rock, usually structured with thin layers. It has an exceptionally fine grain - almost mud like. So id have to see it close up, feel it.
But im no rock expert. I only know stuff from what ive experienced, found and looked up or been told by others🤷♀
@OogieBoogie now that you say it, the part with the relief does have that reddish- shale look to it, different from the other half of the rock. I'm thinking you nailed it.
