Pyritized Ram's Horn Oyster - Fossil Quality:Standard Chemical Composition: SiO₂

Chemical Composition: SiO₂

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Bristle Length: 6mm

Overall Length: 120mm

Madagascar and USA

Pyritized Ram's Horn Oyster - Fossil Quality:Standard Chemical Composition: SiO₂Mined from: Grayson County, Texas, USA Era: Lower Cretaceous Age Geological Age: 105 mya Description: This is a Ram's Horn Oyster fossil from Texas that has been pyritized to give it a shimmer of light. They are small and delicate. These oysters lived during the Cretaceous period and lived in shallow coastal waters. They fed on food particles that were filtered out from the ocean water. Approximate Size of 1 piece: 28mm x 20mm x 16mm Approximate