- Haüy , René Just
- (1743–1822) French mineralogistHaüy, whose father was a poor clothworker, was born in St. Just in France. His interest in church music attracted the attention of the prior of the abbey, who soon recognized Haüy's intelligence and arranged for him to receive a sound education. While in Paris, his interest in mineralogy was awakened by the lectures of Louis Daubenton. He became professor of mineralogy at the Natural History Museum in Paris in 1802. His Traité de mineralogie (Treatise on Mineralogy) was published in five volumes in 1801 and Traité de cristallographie (Treatise on Crystallography) in three volumes in 1822.Haüy is regarded as the founder of the science of crystallography through his discovery of the geometrical law of crystallization. In 1781 he accidentally dropped some calcite crystals onto the floor, one of which broke, and found, to his surprise, that the broken pieces were rhombohedral in form. Deliberately breaking other and diverse forms of calcite, he found that it always revealed the same form whatever its source. He concluded that all the molecules of calcite have the same form and it is only how they are joined together that produces different gross structures. Following on from this he suggested that other minerals should show different basic forms. He thought that there were, in fact, six different primitive forms from which all crystals could be derived by being linked in different ways. Using his theory he was able to predict in many cases the correct angles of the crystal face. The work aroused much controversy and was attacked by Eilhard Mitscherlich in 1819 when he discovered isomorphism in which two substances of different composition can have the same crystalline form. Haüy rejected Mitscherlich's arguments.Haüy also conducted work in pyroelectricity. The mineral haüynewas named for him.
Scientists. Academic. 2011.
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Haüy, René-Just — • Mineralogist; b. at Saint Just (Oise), 28 Feb., 1743; d. at Paris, 3 June, 1822 Catholic Encyclopedia. Kevin Knight. 2006 … Catholic encyclopedia
Haüy, René-Just — born Feb. 28, 1743, Saint Just en Chaussée, France died June 1, 1822, Paris French mineralogist, one of the founders of the science of crystallography. He studied theology and was a professor at the Collège de Navarra for 21 years. He became a… … Universalium
HAÜY, RENÉ JUST — known as the Abbé Haüy, a French mineralogist, born at St. Just; propounded the theory of crystallisation founded on geometrical principles; absorbed in study, was caught napping during the Revolution; got consequently into trouble, but was… … The Nuttall Encyclopaedia
Haüy, René-Just — (28 feb. 1743, Saint Just en Chaussée, Francia–1 jun. 1822, París). Mineralogista francés, uno de los fundadores de la cristalografía. Estudió teología y durante 21 años fue profesor del Collège de Navarra. Llegó a ser profesor de mineralogía en… … Enciclopedia Universal
Rene Just Hauy — René Just Haüy Pour les articles homonymes, voir Haüy. René Just Haüy L abbé René Just Haüy, né le 28 février 1743 à … Wikipédia en Français
René-Just Haüy — Pour les articles homonymes, voir Haüy. René Just Haüy L abbé René Just Haüy, né le 28 février 1743 à … Wikipédia en Français
Rene Just Haüy — René Just Haüy. René Just Haüy (* 28. Februar 1743 in Saint Just en Chaussée an der Oise; † 3. Juni 1822 in Paris) war ein französischer Mineraloge. Nach ihm ist ein Mineral, der Haüyn benannt. Er beschrieb das Symmetriegesetz der… … Deutsch Wikipedia
René Just Haüy — René Just Haüy. Abate Haüy o René Just Haüy (28 de febrero de 1743 3 de junio de 1822). Mineralogista nacido en Francia considerado el fundador de la cristalografía. El nombre de Abate Haüy se debe a que era canónigo honorario de Notre Dame de… … Wikipedia Español
Rene-Just Hauy — René Just Haüy † Catholic Encyclopedia ► René Just Haüy Mineralogist; b. at Saint Just (Oise), 28 Feb., 1743; d. at Paris, 3 June, 1822. His father was a poor weaver and he owed his early education to the monks of the… … Catholic encyclopedia
René-Just Haüy — René Just Haüy. René Just Haüy (* 28. Februar 1743 in Saint Just en Chaussée an der Oise; † 3. Juni 1822 in Paris) war ein französischer Mineraloge. Nach ihm ist ein Mineral, der Haüyn benannt. Er beschrieb das Symmetriegesetz der Kristallogra … Deutsch Wikipedia