Ammolite Iridescent Fossil Specimen

This stunning ammolite specimen showcases the brilliant play of color that makes this gemstone one of the rarest and most captivating on Earth. Formed over 70 million years ago from the fossilized shells of ammonites—extinct marine mollusks—ammolite is found only in limited deposits along the eastern slopes of the Rocky Mountains in Alberta, Canada.

Each piece of ammolite is completely unique, displaying vivid flashes of red, green, and blue under changing light. These colors come from thin layers of aragonite (the same mineral found in nacre or mother-of-pearl) that refract light in spectacular ways, creating the gemstone’s signature iridescence.

Because of its rarity and delicate structure, ammolite is usually cut and stabilized into cabochons or polished tablets for use in jewelry. Having it preserved in its original fossil form—with the natural contours and textures of the ancient ammonite shell—is increasingly uncommon, making this specimen especially desirable for collectors and natural history enthusiasts. This particular specimen is just a portion of a fossil, which must have been quite large in its entirety.

Ammolite is prized not only for its natural beauty but also for its rarity and cultural significance. Recognized as an official gemstone of Canada, it is believed gem-quality ammolite is found in less than 1% of ammonite fossils.

Whether you’re a collector of natural history, a lapidary enthusiast, or simply someone who appreciates the artistry of nature, this ammolite specimen makes a remarkable addition to any collection or display.

90x90x35mm

349g