(I am not a native english speaker, so I'm not really aware of the specific terminology.) A few years back, I found an unidentified rock on a beach in Normandie (France). It looks and feels (texture-wise) kind of like a metal, but it displays big cristals. It has orange tones very reminiscent of iron oxide, and the head of the cristals is dark grey. Here are a few pictures : The measured volumic mass of the piece is 3.4 g/cm^3. Could you help me figure out what this mineral is ? Thank you in advance
closed as off-topic by user12525, trond hansen, daniel.neumann, arkaia, Semidiurnal Simon Aug 29 at 19:42
This question appears to be off-topic. The users who voted to close gave this specific reason:
- "Questions about rock identification requests are off-topic. For more information, see the announcement on meta." – Community, trond hansen, daniel.neumann, arkaia, Semidiurnal Simon
Your mineral specimen is most likely goethite after pyrite, a common pseudomorph found in many different geological environments.
A quick google search revealed pyrite and goethite can be found in Normandy.
Mindat - Goethite (map before from Mindat)