A spectacular extra-large ammonite fossil of the species Cleoniceras (also known as Aioloceras), weighing 8 kg. Entirely mineralised in hematite, this specimen is further enriched by subtle traces of pyrite, which add delicate golden accents to its deep metallic sheen. The polished surface reveals the ammonite’s iconic spiral structure in striking detail, emphasising both its natural geometry and its geological transformation.

Sourced from Madagascar, this ammonite is a rare and visually powerful piece, ideal for fossil collectors, natural history enthusiasts, or as a dramatic statement object in refined interiors.