Bidspirit auction | Giant Ammonite fossil sliced for

Giant Ammonite fossil sliced for amazing shapes and shades - extremely rare. diamond polishing - Spectacular colors, diamond polish. 17 cm high, 14 cm wide, 2 cm thick.  Country of origin - Madagascar. Weight 550 gr.!!! ”This is a fossil of a spiral-like shell that served as a home for a mollusk that existed millions of years ago, and its disappearance parallels that of the dinosaurs. The shell underwent a process of fossilization under pressure over a long period of time, during which it sometimes combined with other minerals such as quartz, calcite or fluorite that crystallized within the shell's texture.”