Large copper iridescent Caloceras ammonite hand specimen
Large copper iridescent Caloceras ammonite hand specimen
Large copper iridescent Caloceras ammonite hand specimen
Large copper iridescent Caloceras ammonite hand specimen
Large copper iridescent Caloceras ammonite hand specimen
Large copper iridescent Caloceras ammonite hand specimen
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  • Load image into Gallery viewer, Large copper iridescent Caloceras ammonite hand specimen
  • Load image into Gallery viewer, Large copper iridescent Caloceras ammonite hand specimen
  • Load image into Gallery viewer, Large copper iridescent Caloceras ammonite hand specimen
  • Load image into Gallery viewer, Large copper iridescent Caloceras ammonite hand specimen
  • Load image into Gallery viewer, Large copper iridescent Caloceras ammonite hand specimen

Large copper iridescent Caloceras ammonite hand specimen

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A stunning and large example of an iridescent ammonite fossil of the species Caloceras johnstoni from North Somerset, UK.

The matrix and ammonite measure 90 mm (3.55 inches) across, which is very large for this fossil type. The shell sits in the original limestone matrix in which it was found, which consists of a very think piece of shale. This makes it a nice hand or drawer specimen. The ammonite is very well preserved and has been prepared out of the rock to reveal the shell. The shell displays some beautiful iridescence with flashes of red and copper that appear as the viewing angle changes.

These fossils are highly sought after and very hard to find, especially complete like this. They are preserved in the same way as the famous Canadian "Ammolite" ammonites that are turned into valuable gemstones. The fossil weighs 50 grams.

Around 200 million years old (Hettangian, Early Jurassic), this fossil would make a wonderful addition to any collection.