UV Reactive Exogyra Ponderosa Clam Shell Fossil, Hempstead County, Arkansas, USA

UV reactive Exogyra Ponderosa Clam shell Fossil, from the Marlbrook Marl formation (Cretaceous period), Hempstead County, Arkansas, USA.

Beautifully fluorescent under longwave 365 nm UV light.

Size:

approx: 131 grams

  8 x 7 x 4 cm