# Obsidian Core, Blade, and Curved Neckpiece

- By: Colima (Colima or Jalisco, Mexico)
- Date: c. 300 CE
- Medium: Obsidian
- Classification: Decorative Arts
- Dimensions: Each approx. l: H.: 12.7 cm (5 in.)
- Culture: Mexico
- Credit line: Gift of Ethel and Julian Goldsmith
- Museum: [Art Institute of Chicago](https://www.artic.edu/artworks/184635)
- Rights: [Public domain (CC0)](https://creativecommons.org/publicdomain/zero/1.0/)
- Picture: https://www.artic.edu/iiif/2/4e18b0b3-6bfe-99b2-1f05-4f8abcbbf51a/full/592,/0/default.jpg
- Who can see it: Teens profiles and older (museums give no ratings; placed by Invisible Network from the museum's own words)