Juvenile iridescent Caloceras display ammonite fossil 35mm

Juvenile iridescent Caloceras display ammonite fossil 35mmA stunning example of an iridescent ammonite fossil of the species Caloceras johnstoni from North Somerset, UK. The matrix measures 116 mm (4. 6 inches) across and contains a single ammonite that measures 35 mm (1. 4 inches). 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

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

The matrix measures 116 mm (4.6 inches) across and contains a single ammonite that measures 35 mm (1.4 inches). 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, which displays some beautiful iridescence that changes as the viewing angle changes, with red, green, and gold colours dominating. There are some unusual natural fault lines running through the limestone matrix that criss-cross the ammonite. Where the cross the ammonite, the shell colour has changed to white. This is an entirely natural geological phenomenon, giving the fossil an even more interesting story. The whole piece weighs 535 grams. 

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. 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.