Years ago, I bought from a flea market two strange looking stones, that the owner said he had found under the sand of a dune in the desert (I don’t remember which). Maybe it’s true, maybe not, but I liked their strange shape and they were cheap, so I bought two. Does anyome have any idea what they could be?
put on hold as off-topic by Universal_learner, Fred, arkaia, trond hansen, Jan Doggen Jul 12 at 9:37
This question appears to be off-topic. The users who voted to close gave this specific reason:
- "Please review our rock identification guidelines to provide the missing information so that your question is both answerable and useful to new users." – Universal_learner, Fred, arkaia, trond hansen, Jan Doggen
They look like ventifacts, wind polished stones from deserts or beaches. Identifying the mineralogy of such stones can be almost impossible without breaking them open due to the combined effects of very fine polishing and the build up of Desert Varnish on their surfaces. These specimens in particular appear to be very heavily varnished, as such I can't even guess at the underlying minerals or their arrangement.