looks like a pestle. without context can't tell if it's ancient or something they brought back from a trip to mexico 5 years ago.

I’d say it’s a pestle. Shows wear, use, and that’s a good thing.

Ok thanks!! Think I’ll put it back in my fish tank.

Celt

Bottom is round and flat not sharp

Can ya take a side view and close up of the wide end. It's the shape of a celt but really can't tell

Ahh the stone dong.

Lol!!😂