Green iridescent Caloceras display ammonite fossil 28mm pyrite The piece of limestone matrix

The piece of limestone matrix measures 105 mm (4

The fossil weighs 65 grams and has a cut flat base to allow it to stand freely for display

The level of detail on this example is exceptional

This one has a really strong range of colours

Green iridescent Caloceras display ammonite fossil 28mm pyrite The piece of limestone matrixA stunning example of an iridescent ammonite fossil of the species Caloceras johnstoni from North Somerset, UK. The matrix measures 83 mm (3. 3 inches) tall and contains a single ammonite that measures 28 mm (1. 1 inches), making it a juvenile of the species. 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