Digging Carboniferous fern plant fossils at an old coal strip mine in Saint Clair, Pennsylvania, U.S.A.. The white color is the mineral pyrophyllite, which is a pyrite psuedomorph. They are dated at around 300 million years old.
Mineral Collecting, Crystal Digging, and Fossil Hunting in NY & PA
Digging Carboniferous fern plant fossils at an old coal strip mine in Saint Clair, Pennsylvania, U.S.A.. The white color is the mineral pyrophyllite, which is a pyrite psuedomorph. They are dated at around 300 million years old.