FONTAINEBLEAU GOGOTTE Crimped stainless steel base Gogotte : A sandstone concretion of siliceous sand resulting from the displacement of phreatic liquid (saturated water dissolving the silica) leading to the phenomenon of grésification giving the unusual appearance characteristic of gogottes. Dating on the geological time scale (fossiliferous) probably Lower Oligocene -(33-28 MA) GOGOTTE PROBABLY FROM THE LOWER OLIGOCENE (33-28 MILLION YEARS) H. on base: 82 CM - 32.28 IN. WEIGHT : 48 kg - 1 693,15 OZ 68 x 55 CM - 26,8 x 21,7 IN. In the 33-million-year-old Fontainebleau Sand Formation, the Gogottes were formed during the Ice Age. A phenomenon that is unique in the world. Prized since the 18th century, they grace the gardens of the Château de Versailles.