Aztec Double-Headed Serpent: Masterpiece of Mosaic and Trade

The Double-Headed Serpent, a turquoise mosaic pectoral dating from ca. 1400–1521, is one of the British Museum's most celebrated Aztec artifacts. Crafted from Spanish cedarwood and covered with tiny turquoise tiles, the piece also incorporates red thorny oyster shell for the nostrils and gums, and jagged conch shell for teeth. Pine and copal resins, mixed with beeswax, once held pyrite or obsidian eyes, and flickering tongues, now missing, protruded from the mouths. The serpent measures 43.30 cm wide, 20.30 cm high, and 5.90 cm thick, and was worn on the chest by an elite individual, likely an aristocrat or priest, during religious ceremonies. It held divine associations with Quetzalcóatl, Xiuhcoatl, and Tlaloc, and may have been worn during human sacrificial rites. The materials themselves reflect the Aztec trade networks: turquoise from the southwestern United States, shells from coastal regions, and resins from interior forests, symbolizing the empire's far-reaching commerce. The Aztec civilization, which flourished in central Mexico from about 1300 to 1521, ended with the Spanish conquest, but the Double-Headed Serpent remains a testament to its artistry and cultural legacy.