There shall be twelve stones with names corresponding to the names of the sons of Israel; they shall be like signets, each engraved with its name, for the twelve tribes.
As for the appearance of the wheels and their construction: their appearance was like the gleaming of beryl, and the four had the same form, their construction being something like a wheel within a wheel.
His body was like beryl, his face like lightning, his eyes like flaming torches, his arms and legs like the gleam of burnished bronze, and the sound of his words like the roar of a multitude.