pearl: Quick Facts

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Photos

Close-up of a single round pearl with a smooth, lustrous surface resting on the iridescent interior of a mollusk shell.

Gold brooch featuring a large, teardrop-shaped red gemstone at the center, surrounded by round pearls and clear gemstones, with an additional teardrop-shaped clear stone hanging below.

The Canning Jewel

Oyster with cultured pearls

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Basalt sample returned by Apollo 15, from near a long sinous lunar valley called Hadley Rille. Measured at 3.3 years old.

(Bed) Rocks and (Flint) Stones