Well, BB posted some basics about a "Glossy" shader a couple of days ago in another thread. If I understand him right, this would be the result. There you have Reflection, Specular, Diffuse and blurring. 

But for a mirror, I use reflection purely if it's not dirty or something like that. 

A ship in port is safe; but that is not what ships are built for.
Sail out to sea and do new things.
-"Amazing Grace" Hopper

Avatar image of me done by Chidori.