Cardinia Bi-Valve multi block, Frodingham Ironstone, Scunthorpe.

A beautiful and large Cardinia bi valve multi block from the Frodingham Ironstone In the world famous Scunthorpe quarry that is no longer open. 

The Frodingham Ironstone, Obtusum Zone, Lower Lias, Lower Jurassic, Conesby Quarry. 

200 million years old

4 inch x 3.5 inch