State by State
- Specimen Number
Light maroon-colored slab of massive, uniform, sedimentary rock. Probably a siltstone or fine sandstone. The bedding planes are parallel to the slab surface. The right-hand side shows a broad curve consistent with it being the resistant bed in a cliff weathering back.
Sedimentary. Mudstone or fine sandstone.
- Location & Occurrence
- Geological Age
Unusually simple rock, probably the simplest in the collection.