Isseliss

Like in the original post, I just tried sticking a burning hot needle into it. It's 100% road paint as the needle melted a hole in it 🤦‍♂️

No way. That's very disappointing 😄 Thank you very much for solving this mystery!

Hey everyone. I picked up this "rock" at the beach at Tramore, Ireland, a few years ago and recently found it in one of my drawers, wondering what it is. It seems to consist of two parts: Crust - bright yellow, porous, semi-hard on touch with minuscule shiny "glass" pieces Inside - a mixture of different "rocks" covered by the crust It's not magnetic, doesn't seem to fall apart, and is impossible to dent with fingers. I guess I could easily crack it with pliers and some pressure. Thanks in advance for all tips!