ranscendent hue of the Granada
emeralds, which exhibit an excess of neither blue nor yellow. The
other was yellowish-green, resembling the chrysoberyls of Brazil.

Other but imperfect crystals were brought to light, some fragments of
which exhibited the deepest golden tints of the topaz, and others
the tints of the sherry-wine colored topazes of Siberia. Magnificent
crystals have been found in these localities in times long past, and
from the fragments and sections of crystals found in the debris of
early explorations we observed the wide range of color and the deep
longitudinal striae which characterize the renowned beryls from the
Altai Mountains, in Siberia. Lively sea- and grass-green, light and
deep yellow, also blue crystals of various shades, have been found
here.

At the quarries on Rollestone Mountain in Fitchburg beryls of a
rich golden color have been blasted out. Some of these approach the
chrysoberyl and topaz in hardness and hue. Others so closely resemble
the yellow diamond that they may readily be taken for that superior
gem. The refractive power of these yellow stones is remarkable, and
the goniometer will probably reveal a higher index than is accorded to
all the varieties of beryl by the learned Abbe Hauey.

Beautiful transparent beryls have been found among the granite hills
of Oxford county in Maine, and the late Governor Lincoln nearly half a
century ago possessed a splendid crystal which would have rivaled the
superb prism found at Mouzzinskaia, and which the Russians value so
highly. The extended and unexplored ledges of granite which rise
from the shores of the ocean at Harpswell in Maine, and stretch
north-westward for nearly a hundred miles, quite to the base of the
White Mountain group, are not only rich in beryls, but they contain
many of the rarest minerals known to the mineralogist. And perhaps
there is no other field of equal extent in the country which offers to
the mineralogist such a harvest of the rare and curious productions of
the mineral kingdom.

At Haddam in Connecticut beautiful crystals of beryl have been
discovered, and one of these, of fine green color, an inch in diameter
and several inches in length, was preserved in the cabinet of Colonel
Gibbs. Professor Silliman possessed another fine one, seven inches in
length.

The mountains in Colorado have yielded some fine specimens. But the
finest of the beryl species come from Russia. In the Ural Mountains
the crystals are