Iridescent Ammonite Fossil

This spectacular cross section of petrified cedar wood comes from Saddle Mountain, Washington. It is remarkably large with a wonderful and highly aesthetic shape, exhibiting vibrant ...

Tyrannosaurus Rex Tooth in Fossil Matrix. Late Cretaceous, circa 65 Million years before present. Lance Formation, Marchant Ranch Quarry, Niobrara County, Wy...

A large and beautifully preserved fossilised leaf from the Green River formation, a site which has brought forth some of the best-preserved fossi...

Aletai Meteorite Sphere Iron - IIIE circa 4.5 Billion years old A perfect metallic sphere, extracted from the core of the famous Aletai Meteorite, di...

'Louis XIV' Gogotte Formation Measures: circa 30 Million y/o 105 x 76 x 15 cm A magnificent example of a gogotte formation, nicknamed Louis XIV, composed of thick swirls and folds of sparkling sandstone. Discovered in the Oligocene sand dunes of Fontainebleau, France, formed circa 30 million years before present or later. The incredible, almost otherworldly appearance of gogottes may easily be mistaken for the work of a most talented artist. In fact, these sandstone sculptures are entirely natural in origin. They have been found in multiple locations but those from Fontainebleau, such as the present example, are the most remarkable. Thirty-five million years ago, a sea covered what is now the forest of Fontainebleau, and dunes of exceptionally fine and homogenous sand formed. As silica-rich water filtered through this sand, it turned into stone. The flow of water finely modelled the sandstone into the forms we now know as gogottes. These are rare and are only found sporadically, several metres buried underground. They owe their sparkling white appearance to the extreme and unmatched purity of the Fontainebleau sand, sometimes reaching a composition of 99.9% silica. Each of them is unique – a masterpiece slowly fashioned by the hands of Nature. The name “gogotte” was coined by French geologist Claude Guillemin (1923- 1994), inspired by the children’s book series Babar the Elephant...

A pair of monumental limestone sphinxes of Pharaoh Nectanebo I, from the processional avenue of the Serapeum of Memphis, 30th Dynasty, circa 379 - 360 BC. The sphinxes of the Serapeum have captivated travellers since Roman times. However, despite their significance, they are conspicuously absent from the collections of most major museums. Indeed, their existence in private hands is so improbable, and their imitations so numerous, that the present sphinxes were assumed to be modern copies throughout their recent ownership history. Finally recognised and conserved after an extraordinary chance discovery at a garden furniture sale...

A complete prehistoric Cleoniceras opalised iridescent ammonite fossil, originating from Madagascar, presented on an exclusive museum-quality painted plaster base. Over 200 million y...

A large red iridescent ammonite fossil dating from the late cretaceous period (100.5 – 66 million years ago). This huge plancenticeras ammonite is approximately 16 inches tall and has an iridescent lustre that showcases a vibrant red hue. Once a living creature, this ammonite has developed its red iridescent lustre over millions of years of compression, transforming into a striking gemstone. A rare find. Provenance: From the fascinating collection of Gordon Walkden (1944-2022), emeritus Professor of Geology at Aberdeen University. Affectionally known as Aberdeen’s answer to Indiana Jones, Walkden contributed enormously to research through his papers and talks on British marbles, minerals and fossils...

Fossil agate coral adorned with iridescent fossil ammonites. The grey piece of fossil agate coral is cut and polished and adorned with the iridescent...

A superb set of 7 ancient prehistoric ammonite fossils presented on our small turned painted plaster bases. This group showcases ammonites of varyi...

O/6416 - Large fossil stone shell - Ammonites were predatory Prehistorie cephalopod mollusks which existed between 400 and 66 million years ago before dying out during the exinction ...

A complete prehistoric polished jigsaw ammonite fossil, originating from Madagascar, presented on an exclusive museum-quality painted plaster base. A natural historical artefact, pre...