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Materials
- Obsidian2,597 objects
- Chert60 objects
- Basalt (basic igneous rock)37 objects
- Opal glass15 objects
- Flint (rock)6 objects
- Dacite5 objects
- Agate (chalcedony)4 objects
- Petrified wood2 objects
- Quartzite2 objects
- Siliceous rock2 objects
- Jasper1 objects
- Opal1 objects
- Slate (rock)1 objects