This small website tries to commemorate the 200th anniversary of the death of René-Just Haüy (1743-1822), a famous French scientist who is still ignored by his ungrateful homeland, by his Museum which continues to forget him except for a few unsupported diehards. Becaue Haüy did most of its mineralogy works (sensu largo) either at the Collège du Cardinal Lemoine (does not exist anymore) and at the Paris’ Jardin des plantes (MNHN).

Haüy can be pronounced "ah oui!" as one would say "oh non!"

Haüy is unanimously recognized as one of the fathers, if not the father of modern mineralogy, (geometric) crystallography and gemmology.

Not to mention his countless other contributions, including these at the basis of the introduction of the metric system in France, which later spread to the rest of the world... or so!

This site is partly based on the one I created for the International Year of Crystallography in 2014; a mini site exterminated by former webmasters. Fortunately, a backup existed... but many new information and iconography - often unpublished - has been loaded in 2022.