This 70-million-year-old fossil still glows with shifting colours; scientists finally know why

Ammolite, a gemstone from southern Alberta, showcases brilliant colours from ancient marine shells. These fossils, over 70 million years old, possess unique nanostructures that manipulate light. Scientists are studying this natural wonder to understand its enduring brilliance. Ammolite's discovery offers lessons for modern material science and highlights nature's intricate engineering. Its limited supply makes it a precious and finite treasure.