This approximately 110-million year old opalized ammonite displays a full spectrum of color within its rainbow iridescence. Ammolite i s one of a handful of biogenic (coming from life forms) gemstones and is created when the mineral aragonite forms in thin, iridescent layers over the shells of extinct ammonites – a species of Orthoceras which can date back hundreds of millions of years. This hybrid gem-fossil is one of the most sought after materials for jewelry.

Dimensions: 4-3/4”L x 1-1/4”W x 3-3/4”H, Weight: 403 g