Edouard Cumenge

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Bernard Louis Philippe Edouard Cumenge (born April 16, 1828 in Castres (Tarn) , † July 20, 1902 in Paris ) was a French mining engineer and mineralogist .

life and work

He was accepted at the École navale at the age of 14, and in 1845 he enrolled at the École polytechnique in Paris. On January 28, 1851, he then moved to the École nationale supérieure des mines de Paris , where he had to do with the testing office. He took indefinite vacations and traveled extensively.

From these he brought some mineralogical samples with him that made it possible to describe new minerals. These include the "Guejarit" (synonym for Chalkostibit ), which has its name from the site Güejar Sierra in the Spanish Sierra Nevada ; the Boleit and the Cumengeit from Boleo, which were studied by François Ernest Mallard ; and a uranyl vanadate, the carnotite from Colorado, which was studied by Georges Friedel .

He is also the creator of a downgraded class, andiestite , which is a mixture of tellurobismutite and hessite.

He wrote several memoirs: L'amas cuivreux de Rio-Tinto (about: the mass of copper on the Rio-Tinto), Les bitumes de la Trinidad (about: the pitch (asphalt) of Trinidad) and Les gîtes cuivreux du Boleo en Basse -Californie (about: The locations of copper in Lower California).

The Cumengeit he discovered was named after him. The mineralogist Kenngott also dedicated a mineral to him, although it was downgraded to a synonym for stibiconite .

Individual evidence

  1. mindat - Guejarite
  2. Mindat - Cumengite (of Kenngott)

Web links

http://www.annales.org/archives/x/cumenge.html