Materials
Select all that apply:
- Obsidian22,930 objects
- Chert365 objects
- Flint (rock)262 objects
- Basalt (basic igneous rock)42 objects
- Glass (material)26 objects
- Agate (chalcedony)20 objects
- Quartz (mineral)20 objects
- Bone (material)8 objects
- Slate (rock)8 objects
- Petrified wood6 objects
- Jasper5 objects
- Quartz crystal4 objects
- Opal3 objects
- Quartzite3 objects
- Steel (alloy)3 objects
- Chalcedony2 objects
- Granite (rock)2 objects
- Hornfels2 objects
- Iron (metal)2 objects
- Opal glass2 objects