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Materials
- Basalt (basic igneous rock)39 objects
- Tufa10 objects
- Obsidian6 objects
- Sandstone4 objects
- Stone (worked rock)3 objects
- Rhyolite2 objects
- Chert1 objects
- Glass (material)1 objects
- Greenstone (rock)1 objects
- Obsidian (pressure flaked)1 objects
- Quartz (mineral)1 objects
- Schist1 objects