Wabar Pearls are a rare and unusual form of natural glass formed by a meteorite impact in the Rub’ al Khali desert (Empty Quarter) of Saudi Arabia, likely within the last few thousand years, and possibly as recent as the 19th century. The intense heat generated by the impact melted desert sand, producing small, rounded droplets of glass that cooled rapidly and solidified as they fell back to the ground. These glassy spheres and irregular fragments are found scattered across the Wabar crater field, alongside iron meteorite fragments, directly linking them to a confirmed impact event. Although terrestrial in composition, Wabar Pearls are closely tied to this dramatic cosmic event, making them a fascinating part of impact-related collections.

Wabar Pearls are typically translucent to opaque and whilst mostly black (often with white partially melted sand interiors), they have also been reported in colours ranging from pale yellow and greenish hues to darker tones, depending on their composition and formation conditions. Their most distinctive feature is their shape—often smooth, rounded, or droplet-like, resembling tiny glass beads or 'pearls'. Some specimens display surface textures formed during rapid cooling, while others may contain bubbles or inclusions. Their formation is similar to other impact glasses, but their association with a relatively recent and well-preserved crater field makes them particularly significant.

Studying Wabar Pearls provides insight into the extreme temperatures and processes involved in meteorite impacts, especially in silica-rich desert environments. They help scientists understand how molten material behaves during ejection and rapid cooling, as well as the distribution of impact-generated debris. For collectors, Wabar Pearls offer a unique combination of rarity, distinctive appearance, and direct association with both glass and meteorite material from the same event. Each piece represents a small but powerful record of an impact in Earth’s recent past, preserving a moment of intense natural force shaped by a collision from space.