pearl

Table of Contents

Introduction References & Edit History Related Topics

Images

The Canning Jewel

oyster with cultured pearls

Discover

Nelson Mandela, undated photo.

15 Nelson Mandela Quotes

New York NY/ USA- November 23, 2018 Hordes of shoppers throng the Macy's Herald Square flagship store in New York looking for bargains on the day after Thanksgiving, Black Friday.

Why Is It Called Black Friday?

An ancient egyptian hieroglyphic painted carving showing the falcon headed god Horus seated on a throne and holding a golden fly whisk. Before him are the Pharoah Seti and the goddess Isis. Interior wall of the temple to Osiris at Abydos, Egypt.

11 Egyptian Gods and Goddesses

Statue of Nostradamus

Nostradamus and His Prophecies

Scolex (head) of the tapeworm Taenia solium. The hooks of the scolex enable the tapeworm to attach to the intestinal wall.

Uninvited Guests: The 7 Worst Parasitic Worms

Estimated battle casualties, Normandy invasion, World War II. WWII, D-Day

Estimated Battle Casualties During the Normandy Invasion and Campaign to Liberate Paris (June–August 1944)

Salem Witch Trials. Photogravure after the painting by Walter McEwen titled - The Witches - circa 1890s.

How Rye Bread May Have Caused the Salem Witch Trials

pearl: Related Content

Written and fact-checked by The Information Architects of Encyclopaedia Britannica

Last Updated: May 07, 2025

Photos

The Canning Jewel

oyster with cultured pearls

See All Images →

Topics

freshwater pearl pearl doublet saltwater pearl blister pearl seed pearl cultured pearl How Do Oysters Make Pearls?baroque pearl orient mother-of-pearl coral ivory amber jet garnet jade diamond emerald opal sapphire

Quiz

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