Materials
- Sandstone47 objects
- Acetate film37 objects
- Plate glass21 objects
- Granite (rock)20 objects
- Rhyolite19 objects
- Quartzite9 objects
- Basalt (basic igneous rock)8 objects
- Schist4 objects
- Soapstone (metamorphic rock)3 objects
- Lava2 objects
- Plate glass (poor condition)1 objects
- Porphyry1 objects
- Quartz (mineral)1 objects