Mined from: Bearpaw Formation, Lethbridge area, Alberta, Canada

Era: Late Cretaceous
Geological Age: 70–75 mya

Description: This one of a kind Ammolite fragment shows a preserved section of fossilized ammonite shell with a rough natural surface transitioning into a polished edge where flashes of color come through. Along the lower edge, the classic Ammolite iridescence is visible, displaying shifting tones of green, blue, and subtle hints of purple depending on the angle of light. The rest of the piece retains a more natural, unpolished matrix, giving a clear contrast between raw fossil structure and finished surface.

Ammolite forms from the fossilized shells of ammonites, marine cephalopods that lived in the Western Interior Seaway during the Late Cretaceous. In southern Alberta, these shells underwent unique diagenetic conditions where aragonite layers were preserved rather than fully replaced, allowing interference of light within thin layers to produce the gemstone’s signature color play. This fragment represents only a portion of the original shell, but still shows the characteristic layered structure and fracture patterns typical of Ammolite-bearing material.

Because this is a fragment rather than a full ammonite, the piece highlights the internal shell layering and natural break surfaces, which many collectors prefer for understanding how Ammolite occurs in place. The contrast between matrix and color bar adds visual interest while keeping it grounded as a true fossil specimen rather than a fully manufactured gem piece.

People are often drawn to ammolite because it carries both age and movement at the same time. It is tied to change, endurance, and the idea that something ancient can still hold fire and color millions of years later. For collectors, it has that mix of fossil interest and visual impact that makes it easy to appreciate from both a scientific and symbolic angle.

Quantity: 1pc

With this product, you will get the actual stone in the photograph. We do what we can to buy good quality products and price them honestly. The rocks may differ from the photos, but we hope we do them justice.