Pyritized Ammonite Nodule
In the original mudstone matrix, these pyrite ammonites are captured in a nodule along with the ‘negative’ imprint of the ammonite.
Although the amazing bright golden colour looks as though these fossils have been gilded, they are in fact entirely natural.
The distinctive and natural shimmer is down to the fossilisation process, which has led to the original material of the ammonite shell being replaced with a fine layer of the mineral Iron Pyrite.
From Untersturmig, Germany, of the species Pleuroceras Spinatum. Late Jurassic, circa 185 million years old.
Measurements are approximate and the minimum size you should expect your fossil to be. Price includes a small display stand.
Nodule 4.5cm x 4cm minimum
About Our Fossils
The photos are for guidance purposes only and not of the exact fossil you will recieve, unless otherwise stated under the photo of the item. If you would like to , you can contact us before purchase, stating the item which interests you. We will happily email you a photograph and the dimensions of the actual item you will be buying.
As all of our fossils are unique, there will be some variation in the size and colour and shape of each piece, but we do our best to pick out the highest quality items that we have available.
Please note that pictures may not be to scale; always check dimensions. Measurements stated are approximate, they are the minimum size that you should expect your fossil to be.For more information see our buying guide