Pierre Berthier (July 3, 1782 РAugust 24, 1861) was a French geologist who discovered the properties of Bauxite in 1821 in the village Les Baux de Provence in southern France. July 3 is the 184th day of the year (185th in leap years) in the Gregorian calendar, with 181 days remaining. ... 1782 was a common year starting on Tuesday (see link for calendar). ... August 24 is the 236th day of the year in the Gregorian Calendar (237th in leap years), with 129 days remaining. ... 1861 is a common year starting on Tuesday. ... A geologist is a contributor to the science of geology, studying the physical structure and processes of the Earth. ... Bauxite with penny Bauxite (pebbly) Bauxite is a naturally occurring, heterogeneous material composed primarily of one or more aluminium hydroxide minerals, plus various mixtures of silica, iron oxide, titania, aluminium silicates, and other impurities in minor or trace amounts. ... 1821 was a common year starting on Monday (see link for calendar). ... Les Baux de Provence Les Baux de Provence is a small village and commune in the Bouches-du-Rh̫ne d̩partement in southern France, in the former province of Provence. ...