Colorful Ammolite

A colorful Ammolite from Canada, Alberta. The raw material displays the full iridescence spectrum – red, green, blue, and gold – distributed over the natural shell geometry.

The multi-coloration results from the natural shell anatomy: different areas of the original shell have varying aragonite lamella thicknesses. Inner areas (closer to the animal's body) tend towards blue-green iridescence, while outer areas (near the shell aperture) tend towards red-orange.

The distribution of iridescent colors across the raw material is a direct reflection of the original shell's biochemical structure. Collectors who prioritize paleontological authenticity particularly value this naturally multi-colored variant.

The Bearpaw deposits supply the material; retrieval is done manually under lithostratigraphic control. Raw material is typically protected from oxidation with a sealant.

A Canadian collector's item with documented multi-color shell anatomy and paleontological raw authenticity.