during the Crusades. Indeed the origin of the fine peridots of the Middle Ages is shrouded in mystery; they are, however, believed to have been found in one or more of the islands in the Red Sea. In our day a number of specimens have been discovered on the small island of St. John in that sea; the deposit here is a jealously-guarded monopoly of the Egyptian Government. Peridots have also been found at Spyrget Island, in the Arabian Gulf. The most remarkable source of gem-material of this stone is meteoric, a few gems weighing as much as a carat each having been cut out of some yellowish-green peridot obtained by the writer from the meteoric iron of Glorieta Mountain, New Mexico.
That a turquoise, presumably set in a ring, was given to Shylock by Leah before their marriage, perhaps at their betrothal, is all that Shakespeare has found occasion to write of this pretty stone, one of the earliest used for adornment in the world's history, as the great mines of Nishapur, in Persia, and those of the Sinai Penins