The walls were brilliantly coloured, and sometimes plated with bronze or gold as well as with tiles.
Large metallic surfaces (especially external surfaces) are sometimes plated by means of a "doctor," which, in its simplest form, is a brush constantly wetted with the electrolyte, with a wire anode buried amid the hairs or bristles; this brush is painted slowly over the surface of the metal to be coated, which must be connected to the negative terminal of the electrical generator.
Ear-rings (Evwrta, X¦o13ta, Exckt'7pES) of gold, silver, or bronze plated with gold, and frequently ornamented with pearls, precious stones, or enamel, were worn attached to the lobes of the ear.
The dome of the shrine is plated with gold, and within the walls and roof are covered with polished silver, glass and coloured tiles.
In the court before the dome rise two minarets, plated, like the dome, with finely beaten gold from the height of a man and upward.