ˈAmazon-stonen.
Min.
A mineral; a ‘bright verdigris-green and cleavable’ variety of orthoclase, worn as an amulet by the Indians of the Rio Negro.
ΘΚΠ
society > occupation and work > materials > raw material > gem or precious stone > feldspars > [noun]
sunstone1652
labradorite1814
Amazon-stone1836
silicite1843
the world > the earth > minerals > types of mineral > silicates > tectosilicate > [noun] > feldspar > orthoclase > varieties
adularia1789
ice-spar1816
necronite1819
murchisonite1827
rhyacolite1831
Amazon-stone1836
ryakonite1837
krablite1844
1836 W. Macgillivray Trav. & Res. A. von Humboldt xviii. 266 Those green pebbles known by the name of Amazon-stones and worn as amulets.
1862 G. Rawlinson Five Great Monarchies I. vi. 474 They are cut upon serpentine, amazon-stone, and Lapis-lazuli.
This entry has not yet been fully updated (first published 1884; most recently modified version published online November 2010).
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n.1836