Ferruginized Ammonite in Hematite 1.4KG – Madagascar
PUFO507-2
This ammonite comes from southern Madagascar. It fossilized between 110 and 66 million years ago, during the Cretaceous period, within a vein of hematite that gives it its striking black metallic sheen. The combination of the shell’s original aragonite and the iron-rich mineralization preserved the spiral chambers in remarkable detail.
Ammonites are extinct marine mollusks, close relatives of squids and cuttlefish. Their coiled shells, divided into chambers, served both as protection and as a natural buoyancy system. They disappeared about 66 million years ago, in the same mass extinction event that wiped out the dinosaurs.
Here, polishing reveals the delicate sutures of the shell, contrasted against the dense metallic matrix of hematite. A rare fossil at the crossroads of paleontology and mineralogy, equally valuable as a natural curiosity and as a cabinet of curiosities specimen.
Ammonites are extinct marine mollusks, close relatives of squids and cuttlefish. Their coiled shells, divided into chambers, served both as protection and as a natural buoyancy system. They disappeared about 66 million years ago, in the same mass extinction event that wiped out the dinosaurs.
Here, polishing reveals the delicate sutures of the shell, contrasted against the dense metallic matrix of hematite. A rare fossil at the crossroads of paleontology and mineralogy, equally valuable as a natural curiosity and as a cabinet of curiosities specimen.
