Stunning big rainbow iridescent Caloceras display ammonite fossil (78mm) crinoid which is turned into valuable

which is turned into valuable gemstones due to the stunning iridescence

This is a relatively uncommon species at this size and condition

These pyrite ammonites have long been used to create natural jewellery and look amazing in the flesh

which sank to the seafloor and was preserved in the soft mud

The fossil weighs 402 grams and has a cut flat base to allow it to stand freely for display

Stunning big rainbow iridescent Caloceras display ammonite fossil (78mm) crinoid which is turned into valuableA stunning example of an iridescent ammonite fossil of the species Caloceras johnstoni from North Somerset, UK. The matrix measures 96 mm (3. 75 inches) across and contains an ammonite that measures 78 mm (3. 1 inches), which is large for this species. The ammonite sits in the original limestone matrix in which it was found that has been shaped and has a cut flat base allowing it to be displayed freely standing by itself. The ammonite is very well