| Date | Text | |
|---|---|---|
20 Sep 1796
Juan José D'Elhuyar |
death Juan José D'Elhuyar Died 20 Sep 1796 at age 42 (born 15 Jun 1754). Spanish chemist and mineralogist who, assisted his younger brother Faustus, separated tungsten metal from its wolframite ore (1783). Two years earlier, Swedish chemist Carl Scheele discovered tungstic acid, though did not isolate the elemental form, from a mineral known since about 1758 as tung sten (Swedish, heavy stone; which is now known as scheelite). The Elhuyar brothers, working at the Seminary of Bergara, succeeded in extracting the metal by reducing tungstic acid with charcoal. For the first time, Basque scientists entered the history of science. Each became a director of a school of mines, but in different countries. Although Juan José discovered tungsten metal, Fausto became better known. |
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