Materials
- ChertRemove constraint Materials: Chert2,133 objects
- Obsidian13 objects
- Quartz (mineral)6 objects
- Wood (plant material)5 objects
- Sinew (material)4 objects
- Basalt (basic igneous rock)2 objects
- Chalcedony2 objects
- Stone (worked rock)2 objects
- @shell and shell material1 objects
- Agate (chalcedony)1 objects
- Asphaltum1 objects
- Opal1 objects
- Quartzite1 objects