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Materials
- Obsidian6,398 objects
- Chert342 objects
- Flint (rock)149 objects
- Basalt (basic igneous rock)93 objects
- Porphyry29 objects
- Quartzite10 objects
- Dacite7 objects
- Petrified wood5 objects
- Brick (clay material)4 objects
- Jasper4 objects
- Opal glass4 objects
- Agate (chalcedony)3 objects
- Bone (material)2 objects
- Glass (material)2 objects
- Quartz (mineral)2 objects
- Slate (rock)2 objects
- Carnelian1 objects
- Ceramic (material)1 objects
- Mussel shell1 objects