Jamieson, Fausset and Brown on Joshua 7:21

21. a goodly Babylonish garment--literally, "a mantle of Shinar." The plain of Shinar was in early times celebrated for its gorgeous robes, which were of brilliant and various colors, generally arranged in figured patterns, probably resembling those of modern Turkish carpets, and the colors were either interwoven in the loom or embroidered with the needle.

two hundred shekels of silver--equivalent to £22 10s. sterling, according to the old Mosaic shekel, or the half of that sum, reckoning by the common shekel.

a wedge of gold--literally, an ingot or bar in the shape of a tongue.