Don Fausto de Elhuyar (1755-1833) and

Juan José de Elhuyar (1754-1796)

 

	These two Spanish brothers produced metallic tungsten at their Basque Seminary in Bergara, Spain. Don Fausto finally settled in Mexico, where he established the School of Mines; while Juan José was sent to Columbia to oversee South American mining operations.
	Photograph of the mineral, calcium tungstate, in Köping, Sweden Photographs in Vergara, Spain Photographs in Mexico City, Mexico

 

 Copyright 2018, Dr. James L. Marshall and Virginia R. Marshall
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