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Maroc Maroc - WN.COM - Science - 03/Nov 08:18

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

Beneath the shale beds of southern Alberta lies one of Earth’s most extraordinary natural treasures, a gemstone that captures light as vividly today as it did when dinosaurs roamed. Known as Ammolite, this fossilised shell gleams with shifting hues of green, crimson, gold, and sapphire, preserved for over 70 million years. Long admired by jewellers and Indigenous communities alike, Ammolite is now drawing the attention of scientists who want to know how its colours have survived the test of time. Research from the University of Alberta, published in Scientific Reports, reveals that its brilliance is no accident but the result of precise nanostructures that manipulate light in ways nature...

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