Materials
- Obsidian24,933 objects
- Chert514 objects
- Flint (rock)376 objects
- Basalt (basic igneous rock)46 objects
- Glass (material)26 objects
- Quartz (mineral)25 objects
- Agate (chalcedony)22 objects
- Jasper20 objects
- Antler (material)11 objects
- Bone (material)11 objects
- Slate (rock)10 objects
- Opal8 objects
- Petrified wood7 objects
- Quartz crystal4 objects
- Quartzite4 objects
- Sinew (material)3 objects
- Steel (alloy)3 objects
- Wood (plant material)3 objects
- Chalcedony2 objects
- Granite (rock)2 objects