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Materials
- Obsidian11,635 objects
- Flint (rock)312 objects
- Chert195 objects
- Basalt (basic igneous rock)135 objects
- Opal glass22 objects
- Petrified wood6 objects
- Slate (rock)5 objects
- Jasper4 objects
- Opal3 objects
- Quartzite3 objects
- Granite (rock)2 objects
- Agate (chalcedony)1 objects
- Amber (fossil resin)1 objects
- Asphalt (bituminous material)1 objects
- Glass (material)1 objects
- Graywacke1 objects
- Metal1 objects
- Ocher (pigment)1 objects
- Olivella shell1 objects
- Porphyry1 objects