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Materials
- Chert91 objects
- Quartz (mineral)40 objects
- Quartzite9 objects
- Flint (rock)4 objects
- Andesite2 objects
- Obsidian2 objects
- Ostrich eggshell2 objects
- Sandstone2 objects
- Bone (material)1 objects
- Breccia1 objects
- Igneous rock1 objects
- Shale1 objects