#meteorite

Hi I found that rock in river, in Poland. Under water it shines like a body of a fish. The shiny top was the part that we saw, the rest of the stone has round, rusty dots (+/- 1,5 cm) and was totally covered in mud and algae. What do you think it may be? It is pretty big - about 20 cm in longest...

Hello, Please can you helping to identify this?

I found some rocks and I’m curious as to what they are 🙃