Materials
Select all that apply:
- Basalt (basic igneous rock)1 objects
- Chert112 objects
- Chert (?)1 objects
- Flint (rock)26 objects
- Flint (rock) ([ledger: stone])1 objects
- Jasper3 objects
- Obsidian18 objects
- Opal1 objects
- Quartz (mineral)12 objects
- Quartzite9 objects
- Sandstone (banded)1 objects
- Shale1 objects