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Materials
- Flint (rock)88 objects
- Chert34 objects
- Porphyry29 objects
- Obsidian7 objects
- Brick (clay material)4 objects
- Jasper4 objects
- Agate (chalcedony)2 objects
- Basalt (basic igneous rock)1 objects
- Ceramic (material)1 objects
- Quartz (mineral)1 objects
- Quartzite1 objects