Materials
Select all that apply:
- Obsidian23,556 objects
- Chert448 objects
- Flint (rock)284 objects
- Basalt (basic igneous rock)42 objects
- Glass (material)27 objects
- Quartz (mineral)21 objects
- Agate (chalcedony)20 objects
- Bone (material)11 objects
- Slate (rock)10 objects
- Hornfels7 objects
- Petrified wood7 objects
- Jasper6 objects
- Quartz crystal4 objects
- Quartzite4 objects
- Stone (worked rock)4 objects
- Granite (rock)3 objects
- Iron (metal)3 objects
- Opal3 objects
- Steel (alloy)3 objects
- Chalcedony2 objects