Rare limonite formation

Intense yellow - orange limonite formation with inclusions of white quartz. Origin: Benalmadena Trinidad Mine - Malaga - Spain

A very rare and exquisite table-top amethyst formation. The long fromation preserves a prominent golden calcite crystal on a bed of deep purple amethyst and is particularly sculptura...

A very rare and exquisite table-top amethyst formation. The long formation preserves prominent golden calcites crystal on a bed of deep purple amethyst and is particularly sculptural...

A stunning amethyst formation formed of a three quarter geode with cut window, revealing deep purple amethyst crystals, with a beautiful central calcite coated in black goethite and ...

This striking section cut from the centre of a geode, contains an unusual formation of calcite with a blanket of amethyst crystals. The borders are polished to reveal the beautiful c...

An unusual mineral formation of organic appearance. This piece is composed of light grey to green druze, with beautiful multiple stalactite formatio...

Large rare cubed yellow fluorite formation from China mounted on a mirrored steel base. Since 1986 Dale Rogers has been sourcing the grandest fossils, crystals and minerals from a...

A beautiful collection of three large cabinet mineral specimens including amethyst, blue celestite and limonite quartz presented on our medium painted plaster bases. Together, these specimens form a vibrant collection for display, showcasing beautiful colours and shapes formed by nature over millions of years. More details on the individual specimens below: A: Limonite Quartz plate...

Gogotte formation circa 30 Million y/o Measures : 42 x 21 x 63 cm. A magnificent example of a gogotte formation, composed of thick swirls and fo...

An extraordinary Amethyst Geode that showcases a superb formation with two distinct colors, this geode showcases a blend of deep purple Amethyst lines that intricately interlace with...

'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 magnificent example of a gogotte formation 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 aesthetic concretions we now know as gogottes. These are rare and are only found sporadically several metres deep into the ground. 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 intriguing name of “gogotte” was coined by French geologist Claude Guillemin (1923- 1994), who was inspired by the children’s book series Babar the Elephant. In one of the books, a group of monsters called Gogottes are shown hiding behind rocks. These rocks reminded Guillemin of the sandstone concretions...