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Cat's-Eye 137
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day of the Czar Alexander II., of Russia, for whom it was named. Alexandrite has marked
4
hues
of red and green, the national colours of Russia; by daylight it shows
a bright or deep olive-green colour, but in artificial light a soft
columbine red or raspberry red or raspberry tint. One description of
this gem includes the phrase " it is an emerald by day and an amethyst
by night." Subsequent to the discovery of alexandrite in the Urals, the
same gem mineral, but of a better and more workable quality, was
discovered in the island of Ceylon, which is the present principal
source of supply.
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