Did mirrors in Ancient Egypt have a more reflective surface than this? Was there a layer that went on top?
That's a great question. There would not have been another layer actually, it would just have been hammered and then buffed and buffed until the surface became reflective.
Do you know how shiny these mirrors were? Would one be able to see their reflection in it if it was polished?
They would! We can tell from the quality of polished stone that the ancient Egyptians were adept at using abrasives to create exceptionally smooth surfaces.
Metal just doesn't retain a polished surface the same way that diorite does.
We also know that cosmetic application and hair dressing were important parts of Egyptian society that would have required being able to see one's self.