Pennsylvanian Fern Imprint (042517k)


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Pennsylvanian Fern Imprint (042517k)

  • Name: Alethopteris sp
  • Age: Carboniferous (Pennsylvanian) Age 280 mill yrs
  • Formation: Llewellyn Formation
  • Location: St. Clair, Pennsylvania
  • Pennsylvanian fern plant fossils from eastern Pennsylvania anthracite coal mines. The ferns are preserved in the mineral pyrophyllite,
    which sometimes gives them a crisp bold white or silver appearance. Pyrophyllite is a pyrite pseudomorph. Any orange or gold color was caused by
    iron ores in the ground.
  • This collecting locality has now been closed and these specimens will be hard to obtain
    Price is $20.00

Additional information

Weight8 lbs
Dimensions8 × 8 × 8 in