| Found in Tasmania | 18 | Tight-Quantity6372 | | | | |
| Absolutely nobody responded to my last post so lemme try this again- what rock is this? | 18 | timately | | | | |
| Amethysts! | 18 | JIMSTJOHN | | | | |
| Could this be a fossil Nodule? Found on a beach near Norkapp, Norway 🇳🇴 | 18 | StarLink97 | | | | |
| How does this happen? | 18 | dirkraft | | | | |
| What is this fluorescent deep purple/red rock? It has an odd rainbow white-ish shine within it once moved | 18 | gmangaming3243 | | | | |
| Found a few years ago at a job site , any ideas what it could be? | 17 | ElBigSexy | | | | |
| What is this? Found when diving in Croatia(Istria) | 17 | 7E-Mania7 | | | | |
| Fossil? Or just cool? | 17 | herrvictor | | | | |
| Someone said Chert and Quartz, but I am unconvinced. | 17 | 3xtracalibur | | | | |
