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CHAPTER II.
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ΑΜΑΖΟΝΙΤΕ.
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BEAUTIFUL green mineral is occasionally used as an ornamental stone under the name of Amazonite or Amazon Stone. Formerly
it was nearly all derived from Siberia, but in recent years magnificent
examples have been found at Pike's Peak, Colorado ; while it has also
been discovered in Scotland.
Amazon-stone
is a bluish-green felspar, formerly regarded as a variety of
orthoclase, but placed by the late M. Descloizeaux, on account of its
optical behaviour, with microcline. Its colour has been
referred to the presence of oxide of copper, but according to König, it
is due to an organic compound of iron.
AMAZONITE.
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