Charles-Victor Mauguin (French: [ʃaʁl.vik.tɔʁ mo.gɛ̃]; 19 September 1878 – 25 April 1958), more often Charles Mauguin, was a French mineralogist and crystallographer. He and Carl Hermann invented an international standard notation for crystallographic groups called Hermann–Mauguin notation (also sometimes called international notation).
Ernest-François Mallard (4 February 1833 – 6 July 1894) was a French mineralogist and a member of the French Academy of Sciences. He is also notable for his work with Henri Louis Le Chatelier in combustion as applied to mining safety.
Paul Gabriel Hautefeuille (2 December 1836 in Étampes – 8 December 1902 in Paris) was a French mineralogist and chemist.
Augustin Alexis Damour (19 July 1808, in Paris – 22 September 1902, in Paris) was a French mineralogist who was also interested in prehistory.
Charles Friedel (French: [fʁidɛl]; 12 March 1832 – 20 April 1899) was a French chemist and mineralogist.
Antoine François Alfred Lacroix (4 February 1863 – 12 March 1948) was a French mineralogist and geologist. He was born in Mâcon, Saône-et-Loire.