Min. [named from river Amazon.] A mineral; a ‘bright verdigris-green and cleavable’ variety of orthoclase, worn as an amulet by the Indians of the Rio Negro.
1836. Macgillivray, trans. Humboldt’s Trav., xviii. 266. Those green pebbles known by the name of Amazon-stones and worn as amulets.
1862. Rawlinson, Anc. Mon., I. vi. 474. They are cut upon serpentine, amazon-stone, and Lapis-lazuli.
