The second and less valuable division of the beryl family comprises the
following colors:
Clear light sky-blue, called by lapidaries aquamarine; very light
greenish-blue, known as Siberian aquamarine; and a greenish-yellow
variety, called aquamarine chrysolite.
These three kinds are usually very brilliant, and especially so by
artificial light, in which respect the beryl is superior to many of the
more valuable gem stones. Beryls of very large size have been found
in New Hampshire, one of which has been estimated to weigh over two
tons. While the large specimens are worthless for gem stones, some very
handsome aquamarines and golden-yellow beryls have been found during
the past few years in New Hampshire and Connecticut. These stones, when
cut, compare favorably with the best of their kind.