[Quicksilver]

If you see a socket with a matte surface it is almost certainly an impact socket.
Normal sockets have a polished plated surface. Really cheap sockets are also apt to have thicker walls. Craftsman, Snapon, Mac, Proto, ... If you recognize the name it will be thin walled with good steel.

As far as the using a "regular socket" on an impact wrench. You don't to it because they can break. But on a one off job like this, turn the air down and try it.
If it breaks then you go get another socket, a breaker bar, and a buddy to hold the wheel. (Or try the buddy method first with...)