Peridot: Earth’s Fiery Green Gem
- Natalie Iredale
Peridot is more than just August’s birthstone—it’s a gem forged in fire, shaped by volcanic forces, and steeped in centuries of myth and misidentification. Found in some of Earth’s most dramatic landscapes, Peridot has a story that spans both continents and cultures.
Born of Fire: How and Where Peridot Forms
Peridot is the gem variety of the mineral olivine, a stone that forms deep within the Earth’s upper mantle under intense heat and pressure. Most gems are created closer to the Earth’s surface, but peridot is unique—it travels upward through volcanic activity, sometimes even arriving to us from space in meteorites.
Zabargad: The Legendary Island of Peridot
Zabargad Island (also called St. John’s Island), located in the Red Sea, was once a closely guarded secret of the Egyptian pharaohs. It’s the oldest known source of peridot in the world, with ancient Egyptians mining it over 3,500 years ago.
According to legend, the island was often shrouded in fog and nearly impossible to find unless you already knew where to look. It’s here that the earliest known mining of peridot took place, dating back to around 1500 BCE.
The Egyptians called peridot the “gem of the sun,” believing it held protective powers, especially at night. When set in gold, it was thought to drive away evil spirits and guard against nightmares. Cleopatra’s legendary emerald collection may have actually been peridot from this very island—mistaken identity that carried through centuries.
Hawai‘i: Where Peridot Colors the Beach
In Hawai‘i, peridot isn’t just found in jewelry—it’s part of the landscape, with some of the most visually stunning olivine deposits on Earth, thanks to its rich volcanic landscape.
At Papakōlea Beach, one of only four green sand beaches in the world, tiny crystals of olivine (peridot in its raw form) tint the shoreline an otherworldly green. These crystals erode out of a nearby cinder cone formed by volcanic activity and are so abundant that they give the entire beach its distinctive hue.
In Hawaiian lore, peridot is said to represent the tears of Pele, the fiery volcano goddess. When Kīlauea erupts and flings lava into the sky, Pele is believed to be expressing powerful emotion—and the peridot that falls to Earth is her sorrow crystallized.
A Gem Fit for Royalty—Even if Misunderstood
Throughout history, peridot has often been mistaken for emerald. Before modern gemology, stones were judged largely by color alone. Peridot’s vivid green—especially when viewed by candlelight or set in gold—looked close enough to emerald to fool even royalty.
- In Cologne Cathedral in Germany, the Shrine of the Three Kings is decorated with large green stones long thought to be emeralds. These were later identified as peridot.
- As mentioned earlier, Cleopatra’s famous “emeralds” may have actually been peridots sourced from Zabargad Island.
In Summary
Peridot’s journey is one of transformation—rising from the Earth’s molten heart, falling from meteorites, and becoming part of island landscapes and royal jewels alike. Whether glittering on Cleopatra’s crown or illuminating ancient cathedrals, this gem’s story is far older and deeper than its vibrant green surface might suggest.
From volcanic fire to royal courts, peridot’s beauty has always been otherworldly—sometimes even mistaken for something else entirely. But make no mistake: this gem stands in a class of its own.