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Arkansas Minerals

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

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

Regular price $38.00 USD
Regular price Sale price $38.00 USD
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Set of x8 UV reactive Exogyra Ponderosa Clam shell Fossils, from the Marlbrook Marl formation (Cretaceous period), Hempstead County, Arkansas, USA. Beautifully fluorescent under longwave 365 nm UV light. You will receive these exact 8 specimens shown in the listing photographs. Note that these are all uv reactive, but the longwave uv light used is a flashlight version so the beam cannot illuminate all of the specimens at once.


total weight of all 8 is Approx. 1 lb 5.9 oz

they range in length from approx. 4.8 - 8 cm each

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