Perfect multi-coloured iridescent Caloceras display ammonite
Perfect multi-coloured iridescent Caloceras display ammonite
Perfect multi-coloured iridescent Caloceras display ammonite
Perfect multi-coloured iridescent Caloceras display ammonite
Perfect multi-coloured iridescent Caloceras display ammonite
Perfect multi-coloured iridescent Caloceras display ammonite
Perfect multi-coloured iridescent Caloceras display ammonite
Perfect multi-coloured iridescent Caloceras display ammonite
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  • Load image into Gallery viewer, Perfect multi-coloured iridescent Caloceras display ammonite
  • Load image into Gallery viewer, Perfect multi-coloured iridescent Caloceras display ammonite
  • Load image into Gallery viewer, Perfect multi-coloured iridescent Caloceras display ammonite
  • Load image into Gallery viewer, Perfect multi-coloured iridescent Caloceras display ammonite
  • Load image into Gallery viewer, Perfect multi-coloured iridescent Caloceras display ammonite
  • Load image into Gallery viewer, Perfect multi-coloured iridescent Caloceras display ammonite
  • Load image into Gallery viewer, Perfect multi-coloured iridescent Caloceras display ammonite

Perfect multi-coloured 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 98 mm (3.85 inches) wide and the ammonite measures 28 mm. The shell sits in the original limestone matrix in which it was found that has been 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. The shell displays some nice multi-coloured iridescence that changes as the viewing angle changes, with red and copper colours dominating. The matrix has a cut-flat base to allow it to stand freely for display.

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 160 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.