FRANCOIS PIERRE NICHOLAS GILLET DE LAUMONT (1747-1834), French mineralogist, was born in Paris on the 28th of May 1747. He was educated at a military school and served in the army from 1772-1784, when he was appointed inspector of mines. His attention in his leisure time was wholly given to mineralogy, and he assisted in organizing the new Ecole des Mines in Paris. He was author of numerous mineralogical papers in the Journal and Annales des Mines. The mineral laumontite was named after him by flatly. He died in Paris on the 1st of June 1834.