Materials
- Slate (rock)6 objects
- Obsidian4 objects
- Ceramic (material)3 objects
- Glass (material)3 objects
- Clay2 objects
- Bone (material)1 objects
- Chert1 objects
- Flint (rock)1 objects
- Granite (rock)1 objects
- Magnetite1 objects
- Petrified wood1 objects
- Steel (alloy)1 objects