René Just Haüy
René Just Haüy () FRS MWS
FRSE (28 February 1743 – 1 June 1822) was a French priest and
mineralogist, commonly styled the
Abbé Haüy after he was made an honorary canon of
Notre Dame. Due to his innovative work on crystal structure and his four-volume ''Traité de Minéralogie'' (1801), he is often referred to as the "Father of Modern Crystallography". During the
French Revolution he also helped to establish the
metric system.
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