Silver Iridescent Ammonite Fossils for Sale

Silver iridescent ammonite fossils are among the most visually striking ammonites, prized for their natural nacreous sheen and shimmering coloration. These authentic specimens date to the Middle Cretaceous period (approximately 110 million years ago) and are sourced from fossil-rich deposits in the Mahajanga Province of Madagascar.

Their brilliant silver tones—often accompanied by subtle rainbow or opalescent hues—are the result of naturally preserved aragonite nacre, a rare feature found only in select ammonite fossils. Each specimen retains its iconic spiral form, offering a remarkable combination of geological preservation and natural beauty.

Silver iridescent ammonites are highly sought after for display, educational collections, and unique fossil gifts, valued for both their scientific significance and aesthetic appeal. No two specimens are alike, making each a one-of-a-kind connection to Earth’s ancient oceans.

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