The
cat's-eye is usually set with a black or gold foil, to heighten its
play and brilliancy. This stone was dedicated to their god Belus by
the ancient Assyrians, and was called by classic authors oculus Beli, and λευκό οφθαλμοί (wolf's-eye).
Jasper.
This
stone—another of the many varieties of quartz— is very compact, and is
found of various colours—dark green, red, brown, yellow, greyish, and
sometimes bluish and black. It is very hard, and takes a fine polish.
Occasionally it is found banded, or in stripes of different colours,
when it is termed ribbon-jasper ; the stripes are usually red and green
alternating. Jasper alone is infusible before the blowpipe, but it
will melt with the addition of carbonate of soda. It is sometimes found
imbedded in trap rock, but more frequently in pebbles in the beds of
rivers.
The
yellow jasper is found near the Bay of Smyrna, in Greece and other
places; the red in the plains of Argos ; the variety known as
ribbon-jasper comes from Siberia and Saxony ; and another kind, termed
Egyptian jasper, is found on the banks of the Nile. This latter is of a
fine brown on the exterior, and clouded with brown of various shades,
frequently spotted with black; the markings in this variety
occasionally resembling natural objects. A specimen in the British
Museum is thought to exhibit a likeness of the poet Chaucer. The yellow