Materials
Select all that apply:
- Obsidian21,667 objects
- Chert1,229 objects
- Basalt (basic igneous rock)891 objects
- Flint (rock)586 objects
- Quartzite266 objects
- Acetate film255 objects
- Plate glass231 objects
- Sandstone181 objects
- Quartz (mineral)110 objects
- Granite (rock)93 objects
- Stone (worked rock)50 objects
- Rhyolite34 objects
- Bone (material)33 objects
- Porphyry33 objects
- Ceramic (material)30 objects
- Wood (plant material)24 objects
- Opal glass23 objects
- Siliceous rock21 objects
- Soapstone (metamorphic rock)21 objects
- Jasper19 objects