Materials
- Obsidian2,534 objects
- Chert119 objects
- Flint (rock)54 objects
- Opal glass15 objects
- Quartzite14 objects
- Jasper8 objects
- Basalt (basic igneous rock)5 objects
- Petrified wood4 objects
- Sandstone4 objects
- Dacite3 objects
- Hornfels3 objects
- Opal2 objects
- Quartz (mineral)2 objects
- Shale2 objects
- Agate (chalcedony)1 objects
- Gypsum1 objects
- Obsidian (casa diablo mountain)1 objects
- Soapstone (metamorphic rock)1 objects