This naturally bright & colorful specimen is a fragment of a full ammolite fossil. Stabilizing and polishing these specimens is typical from this source. This single sided piece has a beautifulcolor, which are mainly greens and blues, but also some orange, reds, and yellow. It's very attractive! I acquired this piece in September of 2022 during my trip to the ammolite mines in Canada. An outstanding specimen from the locality.
These fossil ammolites are around 70 million years old & these particular ammonites are among the few sources that produces such spectacular brightly colored specimens and gem quality pieces