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Obsidian core debitage

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Large flake resulting from the process of reducing an obsidian boulder to a core form from which blades were produced during Precolumbian times using the percussion-flake method. The flake is mounted in a copper alloy cast armature made by Margret Craver Withers in the late 20th century.


Margret Craver Withers collection (acquired in Mexico and Guatemala) by 1972; to MFA, November 1993, gift of Margret Craver Withers.

Credit Line

Gift of Margret Craver Withers

Aztec (?), Postclassic period (?), A.D. 1000–1500

Object Place



Overall: 29 x 7.8 x 2.5 cm (11 7/16 x 3 1/16 x 1 in.)

Accession Number


Medium or Technique

Gray obsidian, modern metal mount




Raw materials and by-products