A naturally formed sandstone concretion from Fontainebleau, France, composed of exceptionally fine quartz sand cemented by silica. Mounted on a metal base; 30 × 30 × 18 cm (11 3/4 × 11 3/4 × 7 1/8 in.); 10 kg. Anatomy of Melancholy is a compact and highly sculptural example of the sandstone concretions known as Gogottes, found within the exceptionally pure sands of the Fontainebleau region in northern France. These sands were deposited during the Oligocene Period, approximately 30 million years ago, although the process through which they became cemented into sculptural formations occurred considerably later, during successive Quaternary glacial periods. The formation comprises a dense arrangement of rounded projections, folded ridges and shadowed recesses. Its contours gather around a compact central mass, creating an intricate relationship between projecting surfaces and enclosed cavities. The pale, finely granular surface softens these transitions, while the title Anatomy of Melancholy encourages psychological and anthropomorphic associations without imposing a fixed interpretation upon the natural form. Gogottes developed as silica-rich groundwater circulated through the Fontainebleau sands. Dissolved silica precipitated between the exceptionally fine quartz grains, binding them together through a gradual and discontinuous process. Variations in water movement and the intermittent deposition of silica produced their characteristic ridges, cavities and fluid outlines. Despite its resemblance to modelled clay or carved stone, Anatomy of Melancholy is entirely unworked. Fontainebleau sandstone formations have been admired as natural curiosities since at least the seventeenth century and were incorporated into several of the gardens at Versailles under Louis XIV. Their flowing, biomorphic forms have subsequently invited comparison with the sculpture of Jean Arp, Henry Moore and Barbara Hepworth. Combining geological rarity with an evocative and introspective presence, Anatomy of Melancholy occupies a compelling position between natural-history specimen and abstract sculpture.