Juan José D'Elhuyar:
Juan José D'Elhuyar was a Spanish mineralogist and chemist who co-discovered the element tungsten.
Birth:
June 15, 1754
Death:
September 20, 1796 in Santafé de Bogotá, Colombia
Claim to Fame:
Juan José D'Elhuyar was a Spanish mineralogist who, together with his brother Faustus D'Elhuyar, isolated the element tungsten from wolfram ore. Carl Scheele had discovered tungsten two years earlier in the form of tungstic acid, but did not separate the tungsten metal from the acid. The D'Elhuyar brothers reduced the acid through charcoal and removed the metal.
