Juan José Delhuyar

1754 – 1796

Spanish chemist and mineralogist, who was best known for being first to isolate tungsten with his brother Fausto Elhuyar in 1783

• Epistolario 1777 a 1821 de Juan José y Fausto Delhuyar, en el 200 aniversario de la muerte de Juan José, 20 Septiembre 1796