State by State
- Specimen Number
Broken boulder of red quartzite or quartz-arenite sandstone. Identified by survey staff as a "Cambrian age quartzite"
Sedimentary. Sandstone. Marine.
- Location & Occurrence
Possibly Rose Hill Formation. These are Silurian and Cambrian marine sands that include quartz arenites.
- Geological Age
Plausibly Cambrian or Silurian.
If this is the Rose Hill Formation, this material was hard enough to be worked into archaeological tools.