Stunning multi-colour iridescent Caloceras display ammonite
Stunning multi-colour iridescent Caloceras display ammonite
Stunning multi-colour iridescent Caloceras display ammonite
Stunning multi-colour iridescent Caloceras display ammonite
Stunning multi-colour iridescent Caloceras display ammonite
Stunning multi-colour iridescent Caloceras display ammonite
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Stunning multi-colour 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 125 mm (4.88 inches) wide and contains a partial ammonite that measures 50 mm. The shell sits in the original limestone matrix in which it was found that has been shaped and has a cut-flat base to allow it to be displayed freely standing. The ammonite is very well preserved and has been prepared out of the rock to reveal the shell, which displays some beautiful iridescence with the colours changing as the viewing angle changes, with reds, oranges, greens, and copper colours present.

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 225 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.