Materials
- Obsidian118 objects
- Chert13 objects
- Flint (rock)6 objects
- Opal4 objects
- Acetate film3 objects
- Plate glass3 objects
- Agate (chalcedony)1 objects
- Basalt (basic igneous rock)1 objects
- Chalcedony1 objects
- Opal glass1 objects
- Petrified wood1 objects
- Rhyolite1 objects