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Materials
- Obsidian4,786 objects
- Chert133 objects
- Basalt (basic igneous rock)81 objects
- Flint (rock)77 objects
- Opal glass4 objects
- Agate (chalcedony)1 objects
- Bone (material)1 objects
- Glass (material)1 objects
- Petrified wood1 objects
- Quartz (mineral)1 objects
- Slate (rock)1 objects