Materials
- Chert25 objects
- Obsidian17 objects
- Quartzite17 objects
- Quartz (mineral)8 objects
- Basalt (basic igneous rock)7 objects
- Flint (rock)4 objects
- Limestone3 objects
- Coal2 objects
- Glass (material)2 objects
- Salt (inorganic material)2 objects
- Tufa2 objects
- Agate (chalcedony)1 objects
- Asphalt (bituminous material)1 objects
- Jasper1 objects
- Lava1 objects
- Obsidian (percussion flaked)1 objects
- Quartz (mineral) (percussion flaked)1 objects
- Sandstone1 objects