Sample of metarhyolite, a metamorphic rock used to make stone tools. Overall measurements are approximately 6 cm in length and 10.5 cm at its widest point.
- Catalog Number:
- 2221
- Object/Specimen Description:
- Specimen Count:
- 1
- Precise Locality:
Caledonia State Park, Carbaugh Valley
- Locality:
- US Mid Atlantic (PA, NJ, MD, DE, DC, VA, WV)
- Collecting Locality:
- North America, United States, Pennsylvania