Polished ammonite specimen
This ammonite from Madagascar has been sliced and polished to show the crystal filled internal chambers.
In life, these chambers would have contained gas to keep the creatures buoyant in the water. This animal lived during the Jurassic and Cretaceous periods of Earth's history at least 66 million years ago. Ammonites became extinct at the end of the Cretaceous Period at approximately the same time that dinosaurs vanished.
The Australian Museum Shop sources all the fossils, minerals and gemstones that we sell from reputable Australian wholesalers, whose local and international supply chains are the most sustainable and ethically credible in the world.
290x130x20mm, 850g approx
Shopping with us supports the Australian Museum
Delivery costs are calculated at checkout and include the total weight of items within an order.
Orders are posted Mon - Weds. Standard post to Australian addresses will arrive within 5 - 7 working days from dispatch date.
For international delivery, please allow an additional 14 days