an Unpolished peridot
Photograph by Walter Geiersperger, Corbis

Peridot is August's birthstone

Peridot is the gem-quality crystal of the olivine rock. It is the only gem found in meteorites.

Old-School Myths

Peridots were once thought to glow in the dark. People felt that peridots could ward off anxiety, help one speak better, and improve relationships. Peridots protected anyone wearing them from evil and enchantment.

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Rocks and minerals