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LEVY, AUGUSTE MICHEL (1844– )

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Originally appearing in Volume V16, Page 519 of the 1911 Encyclopedia Britannica.
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LEVY, AUGUSTE See also:MICHEL (1844– ) , See also:French geologist, was See also:born in See also:Paris on the 7th of See also:August 1844. He became inspector-See also:general of mines, and director of the See also:Geological Survey of See also:France. He was distinguished for his researches on eruptive rocks, their microscopic structure and origin; and he See also:early employed the polarizing See also:microscope for the determination of minerals. In his many contributions to scientific See also:journals he described the See also:granulite See also:group, and dealt with pegmatites, See also:variolites, eurites, the See also:ophites of the See also:Pyrenees, the See also:extinct volcanoes of Central France, gneisses, and the origin of crystalline See also:schists. He wrote Structures et See also:classification See also:des roches cruptives (1889), but his more elaborate studies were carried on with F. See also:Fouque. Together they wrote on the artificial See also:production of See also:felspar, See also:nepheline and other minerals, and also of meteorites, and produced Mineralogie micrographique (1879) and Synthese des mineraux et des roches (1882). Levy also collaborated with A. See also:Lacroix in See also:Les Mineraux des roches (1888) and Tableau des mineraux des roches (1889).

End of Article: LEVY, AUGUSTE MICHEL (1844– )

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