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Materials
- Obsidian589 objects
- Chert193 objects
- Basalt (basic igneous rock)85 objects
- Quartz (mineral)49 objects
- Quartzite25 objects
- Flint (rock)22 objects
- Limestone5 objects
- Chalcedony3 objects
- Andesite2 objects
- Mudstone2 objects
- Opal glass2 objects
- Agate (chalcedony)1 objects
- Diabase (dolerite)1 objects
- Jasper1 objects
- Rhyolite1 objects
- Shale1 objects
- Siliceous rock1 objects
- Tortoise shell1 objects