赤焰 Cleoniceras 菊石 - 贝壳化石 - Aioloceras (Cleoniceras) sp. - 15.5 cm - 12.7 cm

Red Fire Cleoniceras Ammonite – Natural Red Iridescence – Cretaceous – Madagascar

A fascinating Red Fire Cleoniceras ammonite from the Cretaceous deposits of Madagascar, distinguished by its striking natural red iridescence and beautifully preserved spiral structure.
The specimen displays a sophisticated combination of smoky brown, bronze, grey, and subtle golden tones, enhanced by vivid flashes of fiery red that emerge across the polished shell when exposed to light. These remarkable reflections originate from preserved iridescent shell layers, creating the captivating optical effect commonly known as "Red Fire."

Particularly attractive are the intense red flashes visible along the outer whorl, contrasting beautifully with the darker fossilized surface. The central spiral remains well defined, displaying delicate bluish-grey mineralized details that add further depth and character to the specimen.
The polished surface reveals subtle internal structures, natural mineral variations, and localized areas of intricate ammonitic suture patterns. Fine fractures, small cavities, and irregular mineralized sections remain visible, reflecting the fossil's geological history and authentic preservation.

Unlike more commonly encountered ammonites, this specimen is especially appealing for its distinctive fiery red reflections, which become particularly striking under direct illumination and from certain viewing angles.
The fossil is supplied with the clear acrylic display stand shown in the photographs, allowing its elegant spiral shape and iridescent details to be appreciated.

A beautiful and visually captivating fossil, combining the timeless geometry of an ancient ammonite with the remarkable optical effects of naturally preserved iridescent shell material. An attractive addition to any fossil collection or refined cabinet of curiosities.