Qualla: Zabargad Island

Zabargad Island: Introduction

Mon, 22 Jun 2026 00:00:00 GMT

The Roman naturalist Pliny the Elder repeated a sailor's tale he could not quite explain: somewhere in the Red Sea lay an island wrapped so often in fog that ships could rarely find it, and the stone it produced was dull by day but glowed by night like a banked coal. Sailors named the place Topazios, after that elusive light. Today it is called Zabargad, or St. John's Island, and the green stone is peridot. Pliny was wrong about the glow, but right that this was no ordinary rock. Zabargad is one of the only places on Earth where the planet's deep mantle has been shoved up into open air.

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Zabargad Island: A Piece of the Deep Earth

Mon, 22 Jun 2026 00:00:00 GMT

Most islands are built by volcanoes or coral. Zabargad is neither. When the African and Arabian plates pulled apart to open the Red Sea, they cracked the crust so violently that a slab of the upper mantle, the layer that normally sits tens of kilometers below your feet, was wrenc...

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Zabargad Island: The Evening Gem

Mon, 22 Jun 2026 00:00:00 GMT

Gem-quality olivine is peridot, and Zabargad is its oldest known source. Mining here began around 300 BCE under the Ptolemaic pharaohs, and the stone reached Egyptian queens and Roman collectors. For centuries scholars doubted whether the ancient workings were real, until a 2010 ...

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Zabargad Island: A Reef Around the Mantle

Mon, 22 Jun 2026 00:00:00 GMT

Above the water, almost nothing grows. There is no soil to speak of, only bare igneous rock, so plant life is sparse and stubborn. The island compensates below the surface. A ring of coral wraps Zabargad roughly 25 meters down, sheltering rays, moray eels, octopus, cuttlefish, an...

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Zabargad Island: An Island Out of the Way

Mon, 22 Jun 2026 00:00:00 GMT

Zabargad sits just north of the Tropic of Cancer in Foul Bay, the largest of a small cluster of islands that includes the aptly named Rocky Island to the south. For most modern travelers it remains what it was for the Ptolemies: a hard place to reach, more rumor than destination....

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