Haüy, Abbé René-Just

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Haüy, Abbé René-Just (1743–1822) One of the founders of modern crystallography, Abbé Haüy was Professor of Mineralogy at the Sorbonne. He applied mathematics to mineralogy in order to determine the structure of crystals, proposing a ‘law’ of rational intercepts. His work, Traité de crystallographie (1822), was for a time the standard book on the subject.