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Materials
- Obsidian102 objects
- Chert90 objects
- Basalt (basic igneous rock)76 objects
- Quartz (mineral)29 objects
- Quartzite11 objects
- Flint (rock)6 objects
- Limestone5 objects
- Mudstone2 objects
- Opal glass2 objects
- Chalcedony1 objects
- Rhyolite1 objects
- Siliceous rock1 objects