much more impressive:


If heaven would make me such another world,
Of one entire and perfect chrysolite!
_Othello_, Act v, sc. 2.
"Tragedies", p. 337, col. A, line 5.


Chrysolite (peridot, or olivine) was regarded in Shakespeare's time
and earlier as of exceptional rarity. The fine peridots of the Chapel
of the Three Kings in Cologne Cathedral were believed to be emeralds
of extraordinary size and were once valued at $15,000,000, although
they are really worth barely $100,000; some of them are more than an
inch in diameter. Whence they came is uncertain, but it is probable
that they were brought from the East at some time 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