Rainbow iridescent Caloceras display ammonite
Rainbow iridescent Caloceras display ammonite
Rainbow iridescent Caloceras display ammonite
Rainbow iridescent Caloceras display ammonite
Rainbow iridescent Caloceras display ammonite
Rainbow iridescent Caloceras display ammonite
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  • Load image into Gallery viewer, Rainbow iridescent Caloceras display ammonite
  • Load image into Gallery viewer, Rainbow iridescent Caloceras display ammonite
  • Load image into Gallery viewer, Rainbow iridescent Caloceras display ammonite
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Rainbow iridescent Caloceras display ammonite

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

The matrix measures 80 mm (3.15 inches) tall and contains one partial ammonite shell. The shell sits in the original limestone matrix in which it was found that has a cut-flat base to allow it to stand freely for display. The ammonite is very well preserved and has been prepared out of the rock to reveal the shell, which displays some beautiful fiery iridescence that changes as the viewing angle changes, with reds, oranges, greens, and copper colours dominating.

These fossils are highly sought after and very hard to find. They are preserved in the same way as the famous Canadian "Ammolite" ammonites that are turned into valuable gemstones. The fossil weighs 75 grams. These fossils make great unusual gifts and each one is totally unique.

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