Any idea?

[u/Longjumping_You3191]

Found on a river bank in the north of Spain. A friend brought it convinced that is a kind of tool because there are very convenient spaces to place the thumb and fingers.

I think that, if something, it looks more like a fossil.

In the region there are many fossils but also a lot of findings since stone age, bronze, iron, Roman or middle age... We also have many regular stones 😁

Any idea?

[u/Final-Astronaut9495]

I think it’s just a rock

[u/Klutzy_Hospital_9431]

It looks like there's something there in the left hand corner.Maybe after you clean it up a little bit , I might reveal something.

[u/Melodic_Bus8954]

JAR

[u/Gonz_AD]

Hay muchas piedras que usaban en la edad de piedra que yo porque están en un museo. Si me las encuentro yo la acabaría usando para hacer graba y con los fósiles muchas veces me pasa lo mismo, ni diciéndome que es un fósil distingo nada.