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: