Ticket reservations are required. Facial coverings are strongly recommended. See Health and Safety.
Part of Hall of Planet Earth.
AMNH/R.Mickens
This coal contains metamorphosed organic matter (carbon) and brassy-colored iron sulfide minerals formed from decaying plants. The plants were buried in swamps and marshes to form peat, and latter converted to coal by heat and pressure resulting from deeper burial.
Donated by Pittsburgh Research Center, Bureau of Mines, Pittsburgh, Pennsylvania