Geological and Mineralogical Gallery

Nearly 600 specimens of exceptional quality inhabit this space, including twenty giant crystals with vertiginous dimensions. Beyond the monumental quartz weighing up to three tonnes, the journey reveals the secrets of Earth's core and the saga of gems extracted in Brazil. French history also takes center stage through the prestigious jewels of the Crown: the Grand Saphir of Louis XIV stands alongside the flamboyant opal of Charles X and the diamond-studded snuff box of Tsar Alexander I. Between scientific rigor and royal grandeur, this unique selection allows you to understand how nature forms, over millions of years, raw works of art and stones of absolute purity. A documentary film completes the experience by retracing the arrival of these spectacular geodes in national collections.