A brittle rock made of glitter. It breaks in this linear fashion and can be pound into sand by a mortar and pestle.
Anyone got any clues?
Edit: Thanks for all the answers. I found it in Romania and after searching for forums of minerals from Romania, I got a few other clues.
It isn't conclusive to me yet, but the possibilities are:
- Pyrit
- Mica
- Schist
- Nagyágit
- Calaverit
- Sylvanit
Of these, Mica and Sylvanit fit the best (imo).
As a kid, I got told that's pyrite, but I'm not sure how correct that is. Most images show the crystalline structure rather than brittle stone, but I was able to find this picture on Wikpedia:
It does not very much look like pyrite in OPs picture. The rock does not look very much like ore and with pyrite you'd often still see some crystals, which look like small golden cubes.