UV Reactive Exogyra Ponderosa Clam Shell Fossil, Hempstead County, Arkansas, USA
$20.00
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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: 149 grams 9 x 7 x 3.5 cm
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