Sea Urchin - Pyritized Fossil

Mined from: Island of Rugen, Höver, near Hannover, Germany Era: Mesozoic Geological Age: Approximately 70 mya Description: This fossil sea urchin comes from the Upper Cretaceous deposits of the Höver Quarry near Hannover, Germany, and the Island of Rügen, dating back approximately 70 million years. While the original shell remains mostly preserved, small patches of pyrite are scattered around and within the fossil, adding subtle metallic highlights without overwhelming its natural features. These fossils formed in iron-rich marine sediments, where localized pyrite growth occurred during fossilization. This specimen clearly displays ancient sea urchin details alongside hints of mineralization, making it an intriguing addition for fossil collectors and geology enthusiasts interested in the processes of partial pyritization. Small Approximate Size of 1 piece: 50mm x 42mm x 35mm Approximate Weight of 1 piece: 112g Medium Approximate Size of 1 piece: 60mm x 50mm x 45mm Approximate Weight of 1 piece: 162g Large Approximate Size of 1 piece: 70mm x 60mm x 55mm Approximate Weight of 1 piece: 322g Quantity: 1pc We do our best to buy quality products- although not every rock is the same. If you choose to purchase the "staff pick option", we will select the best of the batch for you. Otherwise, it will be at random from the larger batch we have in stock.