Basic Rock Collection fossils - Age: Cretaceous period

- Age: Cretaceous period

Each sphere is unique

- Type: Chalcedony (cryptocrystalline quartz) with iron oxide inclusions

- Offers insights into the geological history of Eastern Australia and the supercontinent of Gondwana

Basic Rock Collection fossils - Age: Cretaceous periodSize: 17. 8 x 13. 6 cms Weight: 50 grams (Avg) Location: Made in USA. Product Description: This introductory collection showcases a selection of fundamental rock types, providing a solid foundation for understanding geology. Sourced from various locations across the United States, each rock specimen has been carefully chosen and labeled to highlight its unique characteristics. The collection includes: Igneous rocks (e. g., granite, basalt) Sedimentary