Two sides Ancient Museum Quality Carboniferous Fern Fossil Saint Clair Mine PA Pennsylvania #1-3

All plant fossils were found in the Llewellyn Formation (300 mya, Pennsylvanian Period) and are one of the few places where one can find these very detailed white (sometimes yellow) ferns on a striking contrast of black shale. The plants died and fell into the swamp, where in a low temperature, pressure, and oxygen environment the plant tissue were slowly replaced by pyrite (from sulphides). Pyrophyllite (aluminum silicate, a whitish mineral) is believed to have replaced the pyrite at a later stage as the sediments piled up and the temperature and pressure became greater. The ferns most commonly found are Alethopteris, Neuropteris, Pecopteris, and Sphenophyllum.

There are several Fern Fossils here to choose from, and you can choose the one that best fits your vibration!

#1
Size: 5 3/4 inches in length x 4 1/4 inches in width
147.2 grams

#2
Size: 6 3/4 inches in length x 5 1/4 inches in width
255.2 grams

#3
Size: 5 1/4 inches in length x 4 3/4 inches in width
228 grams

This site is no longer open for excavation and those available are truly priceless.

This specimen will come with a black stand.

These have not been sprayed with any coating. They can be sprayed with a Matt Acrylic Coating available at most craft stores, if desired. I have a table of Orthcereas used heavily (glasses, plates, artwork, dinner served on it for over twenty years) that was sprayed with this coating. It still looks completely new and should last eons. But for one individual piece, I would leave it as it is, but that is completely up to you.

Fern Fossil1-3