The mineral chalcedony is a microcrystalline type of quartz which replaces the original calcium carbonate of the coral and ...

The pattern is prevalent in quartz found at or near the Cretaceous/Tertiary (KT) boundary, the geological layer deposited at the time of the extinction. Fossil Record A gradual decline in the ...

Nestled in Mantua Township at 66 Million Mosasaur Way, stands the Edelman Fossil Park & Museum of Rowan University, with its ...