Most of the rocks at Triassic Park are Triassic in age, and thence the naming of the property "Triassic Park."
Most of the rocks laying around are diabase which is igneous intrusion. They are wrongly named black granite. There are only two other places in the world that have this type of fine diabase, California and Sweden.
The geological formation is called the Stockton Formation which is mainly shale and sandstone locally metamorphised at contact with the diabase. Sandstone and shale can be seen along the railroad cut trail.
White and rose granite blocks are found at the park, but these were transported in from other localities to be cut and polished. Other interesting rocks and fossils have also been brought into the park.
Other Rocks and Fossils at Triassic Park
| Geologic History | Location | Rocks or Fossils |
|---|---|---|
| Quaternary | Aurora, NC | Coral & Shark's teeth |
| Teritary | Vincetown, NJ | Micofossils |
| Cretaceous | Sayerville, NJ Clayton, NJ Inversand Co |
Amber, Inversand pit Mosasaur teeth |
| Jurassic | ||
| Triassic | St. Peters, PA | Diabase, French Creek Mines minerals |
| Permian | ||
| Pennsylvanian | ||
| Mississippian | ||
| Devonian | Deer Lake, PA | Trilobites |
| Silurian | Saylorsburg, PA | |
| Ordovician | Philadelphia, PA | Garnets |
| Cambrian | Herkimer, NY | Herkimer Diamonds |
| Precambrian |
Rocks from other Mines or Quarries brought to Triassic Park
Grace Magnetite Mine, Morgantown, PA. You might find:
- Serpentine - green color
- Limestone - white color
- Pyrite - fools gold
- Chalcopyrite - darker gold
- Magnetite - black
- Actinolite
- Chlorite
- Natrolite
- Hematite
- Calcite
- Phlogopite
- Biotite
French Creek Mines, St. Peters, PA.
- Pyrite - fools gold
- Chalcopyrite - darker gold
- Magnetite - black
- Calcite - white
Not Yet Available:
Zinc Mines, Franklin, NJ.
Fluorescent rocks, glow different colors under SW-short wave light or LW-long wave, black light. The two most abundant minerals are:
- Calcite - SW glows red
- Willemite - SW&LW glows green