Green iridescent multi-Caloceras ammonite fossil
Green iridescent multi-Caloceras ammonite fossil
Green iridescent multi-Caloceras ammonite fossil
Green iridescent multi-Caloceras ammonite fossil
Green iridescent multi-Caloceras ammonite fossil
Green iridescent multi-Caloceras ammonite fossil
Green iridescent multi-Caloceras ammonite fossil
Green iridescent multi-Caloceras ammonite fossil
Green iridescent multi-Caloceras ammonite fossil
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  • Load image into Gallery viewer, Green iridescent multi-Caloceras ammonite fossil
  • Load image into Gallery viewer, Green iridescent multi-Caloceras ammonite fossil
  • Load image into Gallery viewer, Green iridescent multi-Caloceras ammonite fossil
  • Load image into Gallery viewer, Green iridescent multi-Caloceras ammonite fossil
  • Load image into Gallery viewer, Green iridescent multi-Caloceras ammonite fossil
  • Load image into Gallery viewer, Green iridescent multi-Caloceras ammonite fossil
  • Load image into Gallery viewer, Green iridescent multi-Caloceras ammonite fossil
  • Load image into Gallery viewer, Green iridescent multi-Caloceras ammonite fossil

Green iridescent multi-Caloceras ammonite fossil

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

The matrix measures 60 mm (2.35 inches) tall and contains the remains of two ammonite shells. The shells sit in the original limestone matrix in which they were found, are well preserved, and have been prepared out of the rock to reveal the shell details. The shells display some beautiful green, copper, and blue iridescence that changes as the viewing angle changes. Green is the most sought-after colour on these fossils and it really is stunning in these shells. There is also a very unusual bivalve shellfish preserved underneath the smaller ammonite. This shell has amazing detail in the growth lines and adds to the interest in the piece.

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 40 grams and has a cut-flat base to allow it to stand freely for display. 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.