Green iridescent Caloceras display ammonite
Green iridescent Caloceras display ammonite
Green iridescent Caloceras display ammonite
Green iridescent Caloceras display ammonite
Green iridescent Caloceras display ammonite
Green iridescent Caloceras display ammonite
Green iridescent Caloceras display ammonite
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  • Load image into Gallery viewer, Green iridescent Caloceras display ammonite
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Green 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 72 mm (2.85 inches) wide and the ammonite measures 28 mm. The shell sits in the original limestone matrix in which it was found that has been aesthetically shaped and has a cut-flat base for display. The ammonite is very well preserved and has been prepared out of the rock to reveal the shell. The shell displays some beautiful multi-coloured iridescence with different colours that appear as the viewing angle changes, with green and bluer tones dominating. These are the most sought-after colours and are very hard to find these days.

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 110 grams.

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