chrysolite

noun

1. (countable, uncountable)Originally, any of various green-coloured gems; later specifically peridot.

   “Fran. Rueus[…]say as much of the chrysolite, a friend of wisdome, an enemy to folly.”

   “And before he died, Taran-Ish had scrawled upon the altar of chrysolite with coarse shaky strokes the sign of DOOM.”

   “A piece of marigold or bay leaf was imbedded in the metal, and over it a carbuncle or chrysolite was placed.”