peridot

Definition

A transparent olive green form of olivine, used as a gem.

Etymology

From Middle English peritot, from Anglo-Norman peridou, peridout, Middle French perido, peridon, of uncertain origin; later reborrowed from modern French péridot.

Example Sentences

• "Gem-quality olivine is known as peridot, which has a subtle green light all its own."
• "Although there are dozens of different types of gems, among the best known and most important are […]. (Common gem materials not addressed in this article include amber, amethyst, chalcedony, garnet, lazurite, malachite, opals, peridot, rhodonite, spinel, tourmaline, turquoise and zircon.)"