![]() Researchers can trace each sample to its specific source based on the chemical composition and color. In addition to these traits, obsidian is an extremely helpful tool in archaeological research. Obsidian is even being used today as a new experimental material for surgical scalpels. Historically, it was utilized by cultures all over the world, including the Middle East and Easter Island. It is a naturally occurring volcanic glass that fractures easily into sharp points, making it an ideal substance for blades and weapons. Obsidian-or iztli in Nahuatl, the language of the Aztecs-was a perfect material for this activity because of its extreme sharpness. Displays such as these not only reaffirmed a leader’s religious conviction, but also cemented their social status. In these ceremonies, the individual would stand on a pyramid or raised platform in front of an audience and cut themselves with a blade or stingray spine, allowing the blood to spill onto the ground. A delicate blade such as this one would have been used by an elite to demonstrate his/her connection to the gods. The Aztecs, who inhabited Teotihuacan from the 14th century until the Spanish conquest, considered drawing blood a form of personal sacrifice. Mesoamerican cultures had many applications for obsidian including mirrors, jewelry, and swords, but because it is small and fragile this particular blade was probably used for ritual bloodletting.īloodletting was an integral part of Mesoamerican life and religion. ![]() Because it was found on the surface of the Teotihuacan Archaeological Site, it was likely manufactured and used by the Aztecs, who were the last indigenous inhabitants of the area. This small stone blade of greenish-black obsidian ( 19) was found in Teotihuacan, Mexico in the 1940’s.
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