This unique fossil has preserved nacre which creates an iridescent shimmer on the outer shell - Nacre is an organic–inorganic material mostly composed of Aragonite platelets produced by some moluscs and is also the material that pearls are made up of.
These ammonite fossils were formed often with Quartz around ~400 million years ago - includes display case
Approximate Measurements - 3.2cm x 3cm x 0.6cm each
