Amazonite or Amazonstone
Amazonite is a gem variety of microcline feldspar, being potassium aluminium silicate. As
in the pictures above, it is usually polished as a cabochon.
In common with other feldspar gems, it displays a schiller of colored light, caused by
inclusions or its crystal structure creating interference effects of light.
It is sometimes called amazonstone or amazon stone, possibly because one of its sources is
Brazil, although not from the Amazon regions.
Coloration
Amazonite varies from bright verdigris green to a bluish green.