Ammonite, cut and polished. 5.8kg.
Opalized ammonite of +/- 112 million years old, sawn through and polished so that the different rooms are nicely visible. These ammonites were found in Madagascar.
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Ammonites were a group of marine molluscs that also includes today's squid. Today, these animals have their shells inside, but the Ammonites still had their shells outside the body, just like snails.
ammonite pair
The ammonite is about 112 million years old and completely fossilized. This copy has been cut and polished. This makes the different rooms nicely visible. The two halves together form a pair and give a nice picture of how the ammonite grew slowly by expanding its shell with a small chamber.
Fossil ammonite from Madagascar
The most beautiful ammonites are found in Madagascar and can measure up to 25 centimeters in diameter. This ammonite belongs to the Cleoniceras family. Calcite crystals occur in some hollow chambers. These are actually crystal geodes inside the fossil. Ammonites, like the dinosaurs, died out about 65 million years ago.
| Article code | AMP16 |
| EAN | 8784765337114 |
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